diff --git a/.cspell.json b/.cspell.json
index c2c0824bec..582a3d14a0 100644
--- a/.cspell.json
+++ b/.cspell.json
@@ -213,9 +213,7 @@
     "**/node_modules/**",
     "**/build/**",
     "**/src/main/typescript/generated/**",
-    "packages/cactus-plugin-verifier-cc/**",
     "packages/cactus-cmd-socketio-server/**",
-    "packages/cactus-plugin-ledger-connector-go-ethereum-socketio/**",
     "packages/cactus-plugin-ledger-connector-*-socketio/**"
   ]
 }
diff --git a/.eslintignore b/.eslintignore
index 812d0d2426..9d60a71574 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -23,13 +23,6 @@ packages/cactus-cmd-socketio-server/src/main/typescript/verifier/Verifier.ts
 packages/cactus-cmd-socketio-server/src/main/typescript/verifier/VerifierFactory.ts
 packages/cactus-cmd-socketio-server/src/test/typescript/unit/Verifier.test.ts
 
-packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/common/core/app.ts
-packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/common/core/bin/www.ts
-packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/template/ServerMonitorPlugin_template.ts
-packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/template/ServerPlugin_template.ts
-packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/validatorDriver_getNonceHex.ts
-packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/validatorDriver_sendRawTransaction.ts
-packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/validatorDriver_transferNumericAsset.ts
 packages/cactus-plugin-ledger-connector-tcs-huawei-socketio/src/main/typescript/common/core/app.ts
 packages/cactus-plugin-ledger-connector-tcs-huawei-socketio/src/main/typescript/connector/ServerMonitorPlugin.ts
 
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 72afeafdeb..6aecafb516 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -1870,40 +1870,6 @@ jobs:
       - run: npm run configure
       - run: yarn jest ./packages/cactus-plugin-ledger-connector-fabric/src/test/typescript/integration/fabric-v2-2-x/run-transaction-with-ws-ids.test.ts
 
-  cplc-go-ethereum-socketio:
-    continue-on-error: false
-    env:
-      DEV_BUILD_DISABLED: false
-      FULL_BUILD_DISABLED: true
-      JEST_TEST_PATTERN: packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/(unit|integration|benchmark)/.*/*.test.ts
-      JEST_TEST_RUNNER_DISABLED: true
-      JEST_TEST_COVERAGE_PATH: ./code-coverage-ts/cplc-go-ethereum-socketio
-      JEST_TEST_CODE_COVERAGE_ENABLED: true
-      TAPE_TEST_RUNNER_DISABLED: true
-    needs: build-dev
-    runs-on: ubuntu-22.04
-    steps:
-      - name: Use Node.js ${{ env.NODEJS_VERSION }}
-        uses: actions/setup-node@v4.0.2
-        with:
-          node-version: ${{ env.NODEJS_VERSION }}
-      - uses: actions/checkout@v4.1.1
-
-      - id: yarn-cache
-        name: Restore Yarn Cache
-        uses: actions/cache@v4.0.1
-        with:
-          key: ${{ runner.os }}-yarn-${{ hashFiles('./yarn.lock') }}
-          path: ./.yarn/
-          restore-keys: |
-            ${{ runner.os }}-yarn-${{ hashFiles('./yarn.lock') }}
-      - run: ./tools/ci.sh
-        if: ${{ env.RUN_CODE_COVERAGE == 'true' }}
-      - name: Upload coverage reports as artifacts
-        uses: actions/upload-artifact@v4.3.3
-        with:
-          name: coverage-reports-29
-          path: ./code-coverage-ts/**/
   cplc-iroha2:
     continue-on-error: false
     needs:
diff --git a/examples/cactus-example-discounted-asset-trade/script-start-ledgers.sh b/examples/cactus-example-discounted-asset-trade/script-start-ledgers.sh
index 5eb9581579..895be792b4 100755
--- a/examples/cactus-example-discounted-asset-trade/script-start-ledgers.sh
+++ b/examples/cactus-example-discounted-asset-trade/script-start-ledgers.sh
@@ -113,14 +113,6 @@ function start_ethereum_testnet() {
     popd
 }
 
-function copy_ethereum_validator_config() {
-    echo ">> copy_ethereum_validator_config()"
-    cp -fr ${ROOT_DIR}/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/sample-config/* \
-        "${CONFIG_VOLUME_PATH}/connector-go-ethereum-socketio/"
-    generate_certificate "GoEthereumCactusValidator" "${CONFIG_VOLUME_PATH}/connector-go-ethereum-socketio/CA/"
-    echo ">> copy_ethereum_validator_config() done."
-}
-
 function start_indy_testnet() {
     echo ">> start_indy_testnet()"
     pushd "${ROOT_DIR}/tools/docker/indy-all-in-one"
@@ -164,7 +156,6 @@ function start_ledgers() {
     # Start Ethereum
     mkdir -p "${CONFIG_VOLUME_PATH}/connector-go-ethereum-socketio"
     start_ethereum_testnet
-    copy_ethereum_validator_config
 
     # Start Indy
     start_indy_testnet
diff --git a/packages/cactus-api-client/src/main/typescript/public-api.ts b/packages/cactus-api-client/src/main/typescript/public-api.ts
index 8e843dd7d6..7d8b42d785 100644
--- a/packages/cactus-api-client/src/main/typescript/public-api.ts
+++ b/packages/cactus-api-client/src/main/typescript/public-api.ts
@@ -1,7 +1,2 @@
 export { ApiClient } from "./api-client";
 export { DefaultConsortiumProvider } from "./default-consortium-provider";
-export {
-  SocketIOApiClient,
-  SocketLedgerEvent,
-  SocketIOApiClientOptions,
-} from "./socketio-api-client";
diff --git a/packages/cactus-api-client/src/main/typescript/socketio-api-client.ts b/packages/cactus-api-client/src/main/typescript/socketio-api-client.ts
deleted file mode 100644
index d098789bb2..0000000000
--- a/packages/cactus-api-client/src/main/typescript/socketio-api-client.ts
+++ /dev/null
@@ -1,475 +0,0 @@
-/**
- * Copyright 2020-2021 Hyperledger Cactus Contributors
- * SPDX-License-Identifier: Apache-2.0
- *
- * @cactus-api-client/socketio-api-client.ts
- */
-
-const defaultMaxCounterRequestID = 100;
-const defaultSyncFunctionTimeoutMillisecond = 5 * 1000; // 5 seconds
-
-import {
-  Logger,
-  Checks,
-  LogLevelDesc,
-  LoggerProvider,
-} from "@hyperledger/cactus-common";
-import { ISocketApiClient } from "@hyperledger/cactus-core-api";
-
-import {
-  Socket,
-  SocketOptions,
-  ManagerOptions,
-  io,
-} from "socket.io-client-fixed-types";
-import { readFileSync } from "fs";
-import { resolve as resolvePath } from "path";
-import {
-  verify,
-  VerifyOptions,
-  VerifyErrors,
-  JwtPayload,
-  Algorithm,
-} from "jsonwebtoken";
-import { Observable, ReplaySubject } from "rxjs";
-import { finalize } from "rxjs/operators";
-
-const supportedJwtAlgos: Algorithm[] = [
-  "ES256",
-  "ES384",
-  "ES512",
-  "RS256",
-  "RS384",
-  "RS512",
-];
-
-/**
- * Default logic for validating responses from socketio connector (validator).
- * Assumes that message is JWT signed with validator private key.
- * @param publicKey - Validator public key.
- * @param targetData - Signed JWT message to be decoded.
- * @returns Promise resolving to decoded JwtPayload.
- */
-export function verifyValidatorJwt(
-  publicKey: string,
-  targetData: string,
-): Promise<JwtPayload> {
-  return new Promise((resolve, reject) => {
-    const option: VerifyOptions = {
-      algorithms: supportedJwtAlgos,
-    };
-
-    // eslint-disable-next-line @typescript-eslint/ban-ts-comment
-    // @ts-ignore: FIXME https://github.com/hyperledger/cacti/issues/2523
-    verify(
-      targetData,
-      publicKey,
-      option,
-      (err: VerifyErrors | null, decoded: JwtPayload | undefined) => {
-        if (err) {
-          reject(err);
-        } else if (decoded === undefined) {
-          reject(Error("Decoded message is undefined"));
-        } else {
-          resolve(decoded);
-        }
-      },
-    );
-  });
-}
-
-/**
- * Input parameters for SocketIOApiClient construction.
- */
-export type SocketIOApiClientOptions = {
-  readonly validatorID: string;
-  readonly validatorURL: string;
-  readonly validatorKeyValue?: string;
-  readonly validatorKeyPath?: string;
-  readonly logLevel?: LogLevelDesc;
-  readonly maxCounterRequestID?: number;
-  readonly syncFunctionTimeoutMillisecond?: number;
-  readonly socketOptions?: Partial<ManagerOptions & SocketOptions>;
-};
-
-/**
- * Type of the message emitted from ledger monitoring.
- */
-export type SocketLedgerEvent = {
-  status: number;
-  blockData: [Record<string, unknown>];
-};
-
-/**
- * Client for sending requests to some socketio ledger connectors (validators) using socketio protocol.
- *
- * @todo Analyze and handle broken connection / socket disconnected scenarios
- */
-export class SocketIOApiClient implements ISocketApiClient<SocketLedgerEvent> {
-  private readonly log: Logger;
-  private readonly socket: Socket;
-  private readonly validatorKey: string;
-
-  // @todo - Why replay only last one? Maybe make it configurable?
-  private monitorSubject: ReplaySubject<SocketLedgerEvent> | undefined;
-
-  readonly className: string;
-  counterReqID = 1;
-  checkValidator: (publicKey: string, data: string) => Promise<JwtPayload> =
-    verifyValidatorJwt;
-
-  /**
-   * @param validatorID - (required) ID of validator.
-   * @param validatorURL - (required) URL to validator socketio endpoint.
-   * @param validatorKeyValue - (required if no validatorKeyPath) Validator public key.
-   * @param validatorKeyPath - (required if no validatorKeyValue) Path to validator public key in local storage.
-   */
-  constructor(public readonly options: SocketIOApiClientOptions) {
-    this.className = this.constructor.name;
-
-    Checks.nonBlankString(
-      options.validatorID,
-      `${this.className}::constructor() validatorID`,
-    );
-    Checks.nonBlankString(
-      options.validatorURL,
-      `${this.className}::constructor() validatorURL`,
-    );
-
-    const level = this.options.logLevel || "INFO";
-    const label = this.className;
-    this.log = LoggerProvider.getOrCreate({ level, label });
-
-    if (options.validatorKeyValue) {
-      this.validatorKey = options.validatorKeyValue;
-    } else if (options.validatorKeyPath) {
-      this.validatorKey = readFileSync(
-        resolvePath(__dirname, options.validatorKeyPath),
-        "ascii",
-      );
-    } else {
-      throw new Error(
-        "Either validatorKeyValue or validatorKeyPath must be defined",
-      );
-    }
-
-    this.log.info(
-      `Created ApiClient for Validator ID: ${options.validatorID}, URL ${options.validatorURL}, KeyPath ${options.validatorKeyPath}`,
-    );
-    this.log.debug("socketOptions:", options.socketOptions);
-
-    this.socket = io(options.validatorURL, options.socketOptions);
-  }
-
-  /**
-   * Immediately sends request to the validator, doesn't report any error or responses.
-   * @param contract - contract to execute on the ledger.
-   * @param method - function / method to be executed by validator.
-   * @param args - arguments.
-   */
-  public sendAsyncRequest(
-    contract: Record<string, unknown>,
-    method: Record<string, unknown>,
-    args: any,
-  ): void {
-    try {
-      const requestData = {
-        contract: contract,
-        method: method,
-        args: args,
-      };
-
-      this.log.debug("sendAsyncRequest() Request:", requestData);
-      this.socket.emit("request2", requestData);
-    } catch (err) {
-      this.log.error("sendAsyncRequest() EXCEPTION", err);
-      throw err;
-    }
-  }
-
-  /**
-   * Sends request to be executed on the ledger, watches and reports any error and the response from a ledger.
-   * @param contract - contract to execute on the ledger.
-   * @param method - function / method to be executed by validator.
-   * @param args - arguments.
-   * @returns Promise that will resolve with response from the ledger, or reject when error occurred.
-   * @todo Refactor to RxJS
-   */
-  public sendSyncRequest(
-    contract: Record<string, unknown>,
-    method: Record<string, unknown>,
-    args: any,
-  ): Promise<any> {
-    let timeout: ReturnType<typeof setTimeout> | undefined;
-    const freeableListeners = new Map<string, (...args: any[]) => void>();
-
-    return new Promise((resolve, reject) => {
-      this.log.debug("call : sendSyncRequest");
-
-      try {
-        this.log.debug(
-          "##in sendSyncRequest, contract:",
-          contract,
-          "method:",
-          method,
-          "args:",
-          args,
-        );
-        let responseFlag = false;
-
-        // reqID generation
-        const reqID = this.genarateReqID();
-        this.log.debug(`##sendSyncRequest, reqID = ${reqID}`);
-
-        const connectErrorHandler = (err: Error) => {
-          this.log.error("##connect_error:", err);
-          this.socket.disconnect();
-          reject(err);
-        };
-        this.socket.on("connect_error", connectErrorHandler);
-        freeableListeners.set("connect_error", connectErrorHandler);
-
-        const connectTimeoutHandler = (err: Record<string, unknown>) => {
-          this.log.error("####Error:", err);
-          this.socket.disconnect();
-          reject(err);
-        };
-        this.socket.on("connect_timeout", connectTimeoutHandler);
-        freeableListeners.set("connect_timeout", connectTimeoutHandler);
-
-        const errorHandler = (err: Record<string, unknown>) => {
-          this.log.error("####Error:", err);
-          this.socket.disconnect();
-          reject(err);
-        };
-        this.socket.on("error", errorHandler);
-        freeableListeners.set("error", errorHandler);
-
-        const responseHandler = (result: any) => {
-          this.log.debug("#[recv]response, res:", result);
-          if (reqID === result.id) {
-            responseFlag = true;
-
-            if (typeof result.resObj.data !== "string") {
-              this.log.debug(
-                "Response data is probably not encrypted. resultObj =",
-                result.resObj,
-              );
-              resolve(result.resObj);
-            } else {
-              this.checkValidator(this.validatorKey, result.resObj.data)
-                .then((decodedData) => {
-                  this.log.debug("checkValidator decodedData:", decodedData);
-                  const resultObj = {
-                    status: result.resObj.status,
-                    data: decodedData.result,
-                  };
-                  this.log.debug("resultObj =", resultObj);
-                  // Result reply
-                  resolve(resultObj);
-                })
-                .catch((err) => {
-                  responseFlag = false;
-                  this.log.error("checkValidator error:", err);
-                  reject({
-                    status: 504,
-                    error: err,
-                  });
-                });
-            }
-          }
-        };
-        this.socket.on("response", responseHandler);
-        freeableListeners.set("response", responseHandler);
-
-        // Call Validator
-        const requestData = {
-          contract: contract,
-          method: method,
-          args: args,
-          reqID: reqID,
-        };
-        this.log.debug("requestData:", requestData);
-        this.socket.emit("request2", requestData);
-        this.log.debug("set timeout");
-
-        // Time-out setting
-        const timeoutMilliseconds =
-          this.options.syncFunctionTimeoutMillisecond ||
-          defaultSyncFunctionTimeoutMillisecond;
-        timeout = setTimeout(() => {
-          if (responseFlag === false) {
-            this.log.debug("requestTimeout reqID:", reqID);
-            resolve({ status: 504 });
-          }
-        }, timeoutMilliseconds);
-      } catch (err) {
-        this.log.error("##Error: sendSyncRequest:", err);
-        reject(err);
-      }
-    }).finally(() => {
-      freeableListeners.forEach((listener, eventName) =>
-        this.socket.off(eventName, listener),
-      );
-      if (timeout) {
-        clearTimeout(timeout);
-      }
-    });
-  }
-
-  /**
-   * Start monitoring for new blocks on the ledger associated with given connector.
-   * @param monitorOptions - Options to be passed to validator `startMonitoring` procedure.
-   * @returns RxJs Observable, `next` - new block, `error` - any error from the validator.
-   */
-  public watchBlocksV1(
-    monitorOptions?: Record<string, unknown>,
-  ): Observable<SocketLedgerEvent> {
-    if (this.monitorSubject) {
-      this.log.debug("Reuse observable subject from previous call...");
-      if (monitorOptions) {
-        this.log.info(
-          "Passed monitorOptions will be ignored since monitoring is already in progress!",
-        );
-      }
-      return this.monitorSubject;
-    } else {
-      this.log.debug("Create new observable subject...");
-
-      const freeableListeners = new Map<string, (...args: any[]) => void>();
-      const freeListeners = () =>
-        freeableListeners.forEach((listener, eventName) =>
-          this.socket.off(eventName, listener),
-        );
-
-      this.monitorSubject = new ReplaySubject<SocketLedgerEvent>(0);
-
-      this.log.debug("call : startMonitor");
-      try {
-        this.log.debug(
-          `##in startMonitor, validatorUrl = ${this.options.validatorURL}`,
-        );
-
-        const connectErrorHandler = (err: Error) => {
-          this.log.error("##connect_error:", err);
-          this.socket.disconnect();
-          if (this.monitorSubject) {
-            this.monitorSubject.error(err);
-          }
-        };
-        this.socket.on("connect_error", connectErrorHandler);
-        freeableListeners.set("connect_error", connectErrorHandler);
-
-        const connectTimeoutHandler = (err: Record<string, unknown>) => {
-          this.log.error("####Error:", err);
-          this.socket.disconnect();
-          if (this.monitorSubject) {
-            this.monitorSubject.error(err);
-          }
-        };
-        this.socket.on("connect_timeout", connectTimeoutHandler);
-        freeableListeners.set("connect_timeout", connectTimeoutHandler);
-
-        const errorHandler = (err: Record<string, unknown>) => {
-          this.log.error("####Error:", err);
-          this.socket.disconnect();
-          if (this.monitorSubject) {
-            this.monitorSubject.error(err);
-          }
-        };
-        this.socket.on("error", errorHandler);
-        freeableListeners.set("error", errorHandler);
-
-        const monitorErrorHandler = (err: Record<string, unknown>) => {
-          this.log.error("#### Monitor Error:", err);
-          if (this.monitorSubject) {
-            this.monitorSubject.error(err);
-          }
-        };
-        this.socket.on("monitor_error", monitorErrorHandler);
-        freeableListeners.set("monitor_error", monitorErrorHandler);
-
-        const eventReceivedHandler = (res: any) => {
-          // output the data received from the client
-          this.log.debug("#[recv]eventReceived, res:", res);
-
-          this.checkValidator(this.validatorKey, res.blockData)
-            .then((decodedData) => {
-              const resultObj = {
-                status: res.status,
-                blockData: decodedData.blockData,
-              };
-              this.log.debug("resultObj=", resultObj);
-              if (this.monitorSubject) {
-                this.monitorSubject.next(resultObj);
-              }
-            })
-            .catch((err) => {
-              this.log.error(err);
-            });
-        };
-        this.socket.on("eventReceived", eventReceivedHandler);
-        freeableListeners.set("eventReceived", eventReceivedHandler);
-
-        const emitStartMonitor = () => {
-          this.log.debug("##emit: startMonitor");
-          if (!monitorOptions || Object.keys(monitorOptions).length === 0) {
-            this.socket.emit("startMonitor");
-          } else {
-            this.socket.emit("startMonitor", monitorOptions);
-          }
-        };
-
-        if (this.socket.connected) {
-          emitStartMonitor();
-        } else {
-          const connectHandler = () => {
-            this.log.debug("#connect");
-            emitStartMonitor();
-          };
-          this.socket.on("connect", connectHandler);
-          freeableListeners.set("connect", connectHandler);
-        }
-
-        return this.monitorSubject.pipe(
-          finalize(() => {
-            if (this.monitorSubject && !this.monitorSubject.observed) {
-              // Last observer finished
-              this.log.debug("##emit: stopMonitor");
-              this.socket.emit("stopMonitor");
-              freeListeners();
-              this.monitorSubject = undefined;
-            }
-          }),
-        );
-      } catch (err) {
-        this.log.error(`##Error: startMonitor, ${err}`);
-        freeListeners();
-        this.monitorSubject.error(err);
-      }
-    }
-
-    return this.monitorSubject;
-  }
-
-  /**
-   * Generated sync request id used to track and match responses from the validator.
-   * @returns ID lower than maxCounterRequestID.
-   */
-  private genarateReqID(): string {
-    const maxCounterRequestID =
-      this.options.maxCounterRequestID || defaultMaxCounterRequestID;
-    if (this.counterReqID > maxCounterRequestID) {
-      // Counter initialization
-      this.counterReqID = 1;
-    }
-    return `${this.options.validatorID}_${this.counterReqID++}`;
-  }
-
-  /**
-   * Closes internal socket.io connection to the validator.
-   */
-  public close(): void {
-    this.socket.close();
-  }
-}
diff --git a/packages/cactus-api-client/src/test/typescript/unit/socketio-api-client.test.ts b/packages/cactus-api-client/src/test/typescript/unit/socketio-api-client.test.ts
deleted file mode 100644
index 5fefcf9667..0000000000
--- a/packages/cactus-api-client/src/test/typescript/unit/socketio-api-client.test.ts
+++ /dev/null
@@ -1,708 +0,0 @@
-/** Base Class: packages/cactus-api-client/src/main/typescript/socketio-api-client.ts
- * Note:
- *    Don't use jest timer mocks here, they do not work well with node http module.
- *    With timer mocks tests will either hang or report open timeout handle.
- * Tests:
- *  - verifyValidatorJwt(),
- *  - SocketIOApiClient construction,
- *  - SocketIOApiClient.sendAsyncRequest(),
- *  - SocketIOApiClient.sendSyncRequest(),
- *  - SocketIOApiClient.watchBlocksV1(),
- */
-
-const testLogLevel: LogLevelDesc = "info";
-const sutLogLevel: LogLevelDesc = "info";
-const testTimeout = 1000 * 5; // 5 second timeout per test
-const setupTimeout = 1000 * 60; // 1 minute timeout for setup
-
-import "jest-extended";
-import { cloneDeep } from "lodash";
-import { sign, JwtPayload } from "jsonwebtoken";
-
-// Unit Test logger setup
-import {
-  Logger,
-  LoggerProvider,
-  LogLevelDesc,
-} from "@hyperledger/cactus-common";
-const log: Logger = LoggerProvider.getOrCreate({
-  label: "socketio-api-client.test",
-  level: testLogLevel,
-});
-
-// Default SocketIOApiClient config input
-const defaultConfigOptions = {
-  validatorID: "123validatorId321",
-  validatorURL: "https://example:1234",
-  validatorKeyValue: "",
-  validatorKeyPath: "./nonexistent/path/somekey.crt",
-  logLevel: sutLogLevel,
-  maxCounterRequestID: 3,
-  syncFunctionTimeoutMillisecond: 50,
-  socketOptions: {
-    rejectUnauthorized: false,
-    reconnection: false,
-    timeout: 55555,
-  },
-};
-
-// Generate private / public keys for test purposes
-import { generateKeyPairSync } from "crypto";
-const { publicKey, privateKey } = generateKeyPairSync("ec", {
-  namedCurve: "P-256",
-});
-const publicKeyString = publicKey.export({
-  type: "spki",
-  format: "pem",
-}) as string;
-
-import { SocketIOTestSetupHelpers } from "@hyperledger/cactus-test-tooling";
-
-// Mock public key reading
-import fs from "fs";
-jest.spyOn(fs, "readFileSync").mockReturnValue(publicKeyString);
-
-import {
-  SocketIOApiClient,
-  verifyValidatorJwt,
-  SocketLedgerEvent,
-} from "../../../main/typescript/socketio-api-client";
-
-//////////////////////////////////
-// Test Timeout
-//////////////////////////////////
-
-jest.setTimeout(testTimeout);
-
-//////////////////////////////////
-// verifyValidatorJwt()
-//////////////////////////////////
-
-describe("verifyValidatorJwt tests", () => {
-  const message = {
-    message: "Hello",
-    from: "Someone",
-  };
-  let signedMessage = "";
-
-  beforeAll(() => {
-    log.debug("input message:", message);
-
-    // Encrypt the message (from validator)
-    signedMessage = sign(
-      message,
-      privateKey.export({ type: "sec1", format: "pem" }),
-      {
-        algorithm: "ES256",
-        expiresIn: "1 day",
-      },
-    );
-    expect(signedMessage).toBeTruthy();
-    log.debug("signedMessage:", signedMessage);
-  }, setupTimeout);
-
-  test("Decrypts the payload from the validator using it's public key", async () => {
-    // Verify (decrypt)
-    const decryptedMessage = await verifyValidatorJwt(
-      publicKeyString,
-      signedMessage,
-    );
-
-    // Assert decrypted message
-    log.debug("decryptedMessage:", decryptedMessage);
-    expect(decryptedMessage).toMatchObject(message);
-    const decryptedJwt = decryptedMessage as JwtPayload;
-    expect(decryptedJwt.iat).toBeNumber();
-    expect(decryptedJwt.exp).toBeNumber();
-  });
-
-  test("Rejects malicious message", () => {
-    // Reverse original message to produce wrong input
-    const maliciousMessage = signedMessage.split("").reverse().join("");
-    log.debug("maliciousMessage", maliciousMessage);
-
-    // Verify (decrypt)
-    return expect(
-      verifyValidatorJwt(publicKeyString, maliciousMessage),
-    ).toReject();
-  });
-
-  test("Rejects expired message", (done) => {
-    // Encrypt the message (from validator) with short expiration time
-    signedMessage = sign(
-      message,
-      privateKey.export({ type: "sec1", format: "pem" }),
-      {
-        algorithm: "ES256",
-        expiresIn: "1",
-      },
-    );
-    expect(signedMessage).toBeTruthy();
-
-    setTimeout(async () => {
-      // Verify after short timeout
-      await expect(
-        verifyValidatorJwt(publicKeyString, signedMessage),
-      ).toReject();
-      done();
-    }, 1000);
-  });
-});
-
-//////////////////////////////////
-// SocketIOApiClient Constructor
-//////////////////////////////////
-
-describe("Construction Tests", () => {
-  let sut: SocketIOApiClient;
-
-  beforeAll(async () => {
-    sut = new SocketIOApiClient(defaultConfigOptions);
-  }, setupTimeout);
-
-  test("Sets options field from constructor argument", () => {
-    expect(sut.options).toEqual(defaultConfigOptions);
-  });
-
-  test("Sets className field for the class", () => {
-    expect(sut.className).toEqual("SocketIOApiClient");
-  });
-
-  test("Throws on empty required options fields", () => {
-    // Empty validatorID
-    let configOptions = cloneDeep(defaultConfigOptions);
-    configOptions.validatorID = "";
-    expect(() => new SocketIOApiClient(configOptions)).toThrow();
-
-    // Empty validatorURL
-    configOptions = cloneDeep(defaultConfigOptions);
-    configOptions.validatorURL = "";
-    expect(() => new SocketIOApiClient(configOptions)).toThrow();
-
-    // Empty validatorKeyValue and validatorKeyPath
-    configOptions = cloneDeep(defaultConfigOptions);
-    configOptions.validatorKeyValue = "";
-    configOptions.validatorKeyPath = "";
-    expect(() => new SocketIOApiClient(configOptions)).toThrow();
-  });
-});
-
-//////////////////////////////////
-// SocketIOApiClient Logic
-//////////////////////////////////
-
-describe("SocketIOApiClient Tests", function () {
-  const reqContract = {};
-  const reqMethod = { type: "web3Eth", command: "getBalance" };
-  const reqArgs = ["06fc56347d91c6ad2dae0c3ba38eb12ab0d72e97"];
-
-  let testServer: SocketIOTestSetupHelpers.Server;
-  let testServerPort: string;
-  let clientSocket: SocketIOTestSetupHelpers.ClientSocket;
-  let serverSocket: SocketIOTestSetupHelpers.ServerSocket;
-  let sut: SocketIOApiClient;
-
-  beforeAll(async () => {
-    [testServer, testServerPort] =
-      await SocketIOTestSetupHelpers.createListeningMockServer();
-  }, setupTimeout);
-
-  afterAll((done) => {
-    testServer.close(() => {
-      log.debug("Test server closed");
-      done();
-    });
-  }, setupTimeout);
-
-  beforeEach(async () => {
-    clientSocket = SocketIOTestSetupHelpers.createClientSocket(testServerPort);
-
-    // Mock client socket in verifier
-    sut = new SocketIOApiClient(defaultConfigOptions);
-    (sut as any)["socket"] = clientSocket;
-  }, setupTimeout);
-
-  afterEach(() => {
-    if (clientSocket) {
-      clientSocket.close();
-    }
-
-    if (serverSocket) {
-      serverSocket.disconnect(true);
-    }
-
-    testServer.sockets.removeAllListeners();
-  }, setupTimeout);
-
-  //////////////////////////////////
-  // sendAsyncRequest()
-  //////////////////////////////////
-
-  describe("Send SocketIO Async Request Tests", function () {
-    beforeEach(async () => {
-      // Connect client and server sockets
-      testServer.on("connection", (socket) => {
-        log.debug("Server socket connected", socket.id);
-        serverSocket = socket;
-      });
-
-      await SocketIOTestSetupHelpers.connectTestClient(clientSocket);
-      expect(clientSocket.connected).toBeTrue();
-      expect(serverSocket.connected).toBeTrue();
-    }, setupTimeout);
-
-    test("Sends request2 with valid args for socketio verifier", () => {
-      const reqReceived = new Promise<any>((resolve) => {
-        serverSocket.on("request2", (req: any) => resolve(req));
-      });
-
-      sut.sendAsyncRequest(reqContract, reqMethod, reqArgs);
-
-      return reqReceived.then((req: any) => {
-        expect(req.contract).toEqual(reqContract);
-        expect(req.method).toEqual(reqMethod);
-        expect(req.args).toEqual(reqArgs);
-      });
-    });
-  });
-
-  //////////////////////////////////
-  // sendSyncRequest()
-  //////////////////////////////////
-
-  describe("Sync Request Tests", function () {
-    beforeEach(async () => {
-      // Connect client and server sockets
-      testServer.on("connection", (socket) => {
-        log.debug("Server socket connected", socket.id);
-        serverSocket = socket;
-      });
-
-      await SocketIOTestSetupHelpers.connectTestClient(clientSocket);
-      expect(clientSocket.connected).toBeTrue();
-      expect(serverSocket.connected).toBeTrue();
-    }, setupTimeout);
-
-    test("Returns 504 on request timeout", async () => {
-      const reqPromise = sut.sendSyncRequest(reqContract, reqMethod, reqArgs);
-      await expect(reqPromise).resolves.toEqual({ status: 504 }); // timeout
-    });
-
-    test("Sends request2 with valid arguments", () => {
-      const reqReceived = new Promise<any>((resolve) => {
-        serverSocket.on("request2", (req: any) => resolve(req));
-      });
-
-      const responseReceived = sut.sendSyncRequest(
-        reqContract,
-        reqMethod,
-        reqArgs,
-      );
-
-      return Promise.all([
-        expect(responseReceived).resolves.toEqual({ status: 504 }), // timeout
-        reqReceived.then((req: any) => {
-          expect(req.contract).toEqual(reqContract);
-          expect(req.method).toEqual(reqMethod);
-          expect(req.args).toEqual(reqArgs);
-          expect(req.reqID).toBeString();
-          expect(req.reqID.length).toBeGreaterThan(0);
-        }),
-      ]);
-    });
-
-    test("Sends unique request id until maxCounterRequestID", (done) => {
-      const seenReqID = new Set<string>();
-      const maxCounterRequestID = defaultConfigOptions.maxCounterRequestID;
-      let calledTimes = 0;
-
-      serverSocket.on("request2", (req: any) => {
-        expect(seenReqID).not.toContain(req.reqID);
-        seenReqID.add(req.reqID);
-        calledTimes++;
-        if (calledTimes === maxCounterRequestID) {
-          expect(seenReqID.size).toEqual(maxCounterRequestID);
-          done();
-        }
-      });
-
-      // Send maxCounterRequestID requests
-      for (let i = 0; i < maxCounterRequestID; i++) {
-        expect(
-          sut.sendSyncRequest(reqContract, reqMethod, reqArgs),
-        ).resolves.toEqual({ status: 504 }); // timeout
-      }
-    });
-
-    test("Returns decoded response from the validator", () => {
-      const encryptedData = "abcXXX123";
-      const decryptedData = "1234";
-      const responseStatus = 200;
-
-      serverSocket.on("request2", (req: any) => {
-        serverSocket.emit("response", {
-          id: req.reqID,
-          resObj: {
-            data: encryptedData,
-            status: responseStatus,
-          },
-        });
-      });
-
-      const verifyMock = jest.fn();
-      verifyMock.mockResolvedValue({
-        result: decryptedData,
-        iat: 3333333333,
-        exp: 7777777777,
-      });
-      sut.checkValidator = verifyMock;
-
-      return expect(sut.sendSyncRequest(reqContract, reqMethod, reqArgs))
-        .resolves.toEqual({ status: responseStatus, data: decryptedData })
-        .then(() => {
-          expect(verifyMock).toHaveBeenCalledTimes(1);
-          expect(verifyMock).toBeCalledWith(publicKeyString, encryptedData);
-        });
-    });
-
-    test("Doesn't process message from not verified validator", () => {
-      serverSocket.on("request2", (req: any) => {
-        serverSocket.emit("response", {
-          id: req.reqID,
-          resObj: {
-            data: "abcXXX123",
-            status: 200,
-          },
-        });
-      });
-
-      const verifyMock = jest.fn();
-      const verifyError = { message: "mock verify error" };
-      verifyMock.mockRejectedValue(verifyError);
-      sut.checkValidator = verifyMock;
-
-      return expect(
-        sut.sendSyncRequest(reqContract, reqMethod, reqArgs),
-      ).rejects.toEqual({ status: 504, error: verifyError });
-    });
-
-    test("Process only requests with matching ID", () => {
-      serverSocket.on("request2", () => {
-        serverSocket.emit("response", {
-          id: "not_existing_id",
-          resObj: {
-            data: "abcXXX123",
-            status: 200,
-          },
-        });
-      });
-
-      const verifyMock = jest.fn();
-      sut.checkValidator = verifyMock;
-
-      return expect(sut.sendSyncRequest(reqContract, reqMethod, reqArgs))
-        .resolves.toEqual({ status: 504 }) // timeout
-        .then(() => {
-          expect(verifyMock).not.toBeCalled();
-        });
-    });
-  });
-
-  //////////////////////////////////
-  // watchBlocksV1()
-  //////////////////////////////////
-
-  describe("Monitoring Tests", function () {
-    const options = { opt: "yes" };
-    const monitorError = {
-      code: 404,
-      message: "Mock Validator Monitor Error",
-    };
-
-    test("Sends stopMonitor and report error on monitor error", (done) => {
-      expect.assertions(1);
-
-      // Connect client and server sockets
-      testServer.on("connection", (socket) => {
-        log.debug("Server socket connected", socket.id);
-        serverSocket = socket;
-
-        serverSocket.on("stopMonitor", () => {
-          log.info("stopMonitor received - OK");
-          done();
-        });
-
-        serverSocket.emit("monitor_error", monitorError);
-      });
-
-      sut.watchBlocksV1().subscribe({
-        next() {
-          done(new Error("Shouldn't trigger new block message"));
-        },
-        error(err) {
-          log.info("Monitor_error received on the Verifier side.");
-          expect(err).toEqual(monitorError); // race-condition? Will it always happen before emit?
-        },
-      });
-    });
-
-    test("Sends stopMonitor on unsubscribe", (done) => {
-      // Connect client and server sockets
-      testServer.on("connection", (socket) => {
-        log.debug("Server socket connected", socket.id);
-        serverSocket = socket;
-
-        serverSocket.on("stopMonitor", () => {
-          log.info("stopMonitor received - OK");
-          done();
-        });
-      });
-
-      const observer = sut.watchBlocksV1().subscribe({
-        next() {
-          done(new Error("Shouldn't trigger new block message"));
-        },
-        error() {
-          done(new Error("Shouldn't report any errors"));
-        },
-      });
-
-      observer.unsubscribe();
-    });
-
-    test("Sends startMonitor to the validator", (done) => {
-      expect.assertions(1);
-
-      // Connect client and server sockets
-      testServer.on("connection", (socket) => {
-        log.debug("Server socket connected", socket.id);
-        serverSocket = socket;
-
-        serverSocket.on("startMonitor", (inOpts: typeof options) => {
-          // Assert options passed
-          expect(inOpts).toEqual(options);
-
-          // Force premature exit
-          serverSocket.emit("monitor_error", monitorError);
-        });
-      });
-
-      sut.watchBlocksV1(options).subscribe({
-        next() {
-          done(new Error("Shouldn't trigger new block message"));
-        },
-        error(err) {
-          log.info("watchBlocksV1 returned error:", err);
-          done();
-        },
-      });
-    });
-
-    test("Pushes new blocks from the validator", (done) => {
-      const decryptedBlockData = "fooDecrypted321";
-      const eventStatus = 200;
-
-      // Server side logic for sending events
-      testServer.on("connection", (socket) => {
-        log.debug("Server socket connected", socket.id);
-        serverSocket = socket;
-
-        serverSocket.once("startMonitor", () => {
-          serverSocket.emit("eventReceived", {
-            status: eventStatus,
-            blockData: "fooSignedBlockData123xxx",
-          });
-        });
-      });
-
-      // Setup checkValidator results (success)
-      const checkValidatorMock = jest.fn();
-      checkValidatorMock.mockResolvedValue({
-        blockData: decryptedBlockData,
-      });
-      sut.checkValidator = checkValidatorMock;
-
-      // Receive events from the validator
-      sut.watchBlocksV1(options).subscribe({
-        next(ev: SocketLedgerEvent) {
-          expect(ev.status).toEqual(eventStatus);
-          expect(ev.blockData).toEqual(decryptedBlockData);
-          done();
-        },
-        error(err) {
-          done(err);
-        },
-      });
-    });
-
-    test("Doesn't push new blocks from not verified validator", (done) => {
-      // Server side logic for sending events
-      testServer.on("connection", (socket) => {
-        log.debug("Server socket connected", socket.id);
-        serverSocket = socket;
-
-        serverSocket.on("startMonitor", () => {
-          serverSocket.emit("eventReceived", {
-            status: 200,
-            blockData: "fooSignedBlockData123xxx",
-          });
-
-          // Force finish the test after a while
-          setTimeout(
-            () => serverSocket.emit("monitor_error", monitorError),
-            150,
-          );
-        });
-      });
-
-      // Setup checkValidator results (failure)
-      const checkValidatorMock = jest.fn();
-      checkValidatorMock.mockRejectedValue("Mock verify error");
-      sut.checkValidator = checkValidatorMock;
-
-      // Receive events from the validator
-      sut.watchBlocksV1(options).subscribe({
-        next(ev: SocketLedgerEvent) {
-          done("New block was pushed but it shouldn't, event:", ev);
-        },
-        error(err) {
-          expect(err).toEqual(monitorError);
-          done();
-        },
-      });
-    });
-
-    test("Replies last message in multiple subscribers", async () => {
-      const decryptedBlockData = "fooDecrypted321";
-      const eventStatus = 200;
-
-      // Server side logic for sending events
-      testServer.on("connection", (socket) => {
-        log.debug("Server socket connected", socket.id);
-        serverSocket = socket;
-
-        serverSocket.once("startMonitor", () => {
-          serverSocket.emit("eventReceived", {
-            status: eventStatus,
-            blockData: "fooSignedBlockData123xxx",
-          });
-        });
-      });
-
-      // Setup checkValidator results (success)
-      const checkValidatorMock = jest.fn();
-      checkValidatorMock.mockResolvedValue({
-        blockData: decryptedBlockData,
-      });
-      sut.checkValidator = checkValidatorMock;
-
-      const blockObservable = sut.watchBlocksV1(options);
-
-      // Receive event on first observer
-      const firstResults = await new Promise<SocketLedgerEvent>(
-        (resolve, reject) => {
-          blockObservable.subscribe({
-            next(ev: SocketLedgerEvent) {
-              if (!ev.blockData) {
-                reject("First event data is empty or null!"); // todo - test negative
-              } else {
-                log.info("First observer received event:", ev);
-                resolve(ev);
-              }
-            },
-            error(err) {
-              reject(err);
-            },
-          });
-        },
-      );
-
-      // Receive the same event on second observer
-      const secondResults = await new Promise<SocketLedgerEvent>(
-        (resolve, reject) => {
-          blockObservable.subscribe({
-            next(ev: SocketLedgerEvent) {
-              if (!ev.blockData) {
-                reject("Second event data is empty or null!");
-              } else {
-                log.info("Second observer received event:", ev);
-                resolve(ev);
-              }
-            },
-            error(err) {
-              reject(err);
-            },
-          });
-        },
-      );
-
-      expect(secondResults).toEqual(firstResults);
-    });
-
-    test("Repeat watchBlocksV1 after previous monitor observable finished", async () => {
-      // Server side logic for sending events
-      testServer.on("connection", (socket) => {
-        log.debug("Server socket connected", socket.id);
-        serverSocket = socket;
-
-        serverSocket.on("startMonitor", () => {
-          serverSocket.emit("eventReceived", {
-            status: 200,
-            blockData: "fooSignedBlockData123xxx",
-          });
-        });
-      });
-
-      // Setup checkValidator results (success)
-      const checkValidatorMock = jest.fn();
-      checkValidatorMock.mockResolvedValue({
-        blockData: "fooDecrypted321",
-      });
-      sut.checkValidator = checkValidatorMock;
-
-      const firstResults = await new Promise<SocketLedgerEvent>(
-        (resolve, reject) => {
-          const sub = sut.watchBlocksV1(options).subscribe({
-            next(ev: SocketLedgerEvent) {
-              if (!ev.blockData) {
-                sub.unsubscribe();
-                reject("First event data is empty or null!"); // todo - test negative
-              } else {
-                log.info("First observer received event:", ev);
-                sub.unsubscribe();
-                resolve(ev);
-              }
-            },
-            error(err) {
-              sub.unsubscribe();
-              reject(err);
-            },
-          });
-        },
-      );
-
-      const secondResults = await new Promise<SocketLedgerEvent>(
-        (resolve, reject) => {
-          const sub = sut.watchBlocksV1(options).subscribe({
-            next(ev: SocketLedgerEvent) {
-              if (!ev.blockData) {
-                sub.unsubscribe();
-                reject("2nd event data is empty or null!"); // todo - test negative
-              } else {
-                log.info("2nd observer received event:", ev);
-                sub.unsubscribe();
-                resolve(ev);
-              }
-            },
-            error(err) {
-              sub.unsubscribe();
-              reject(err);
-            },
-          });
-        },
-      );
-
-      expect(secondResults).toEqual(firstResults);
-    });
-  });
-});
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/.gitignore b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/.gitignore
deleted file mode 100644
index 849ddff3b7..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-dist/
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/CHANGELOG.md b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/CHANGELOG.md
deleted file mode 100644
index b4de766c56..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/CHANGELOG.md
+++ /dev/null
@@ -1,146 +0,0 @@
-# Change Log
-
-All notable changes to this project will be documented in this file.
-See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
-
-# [2.0.0-rc.3](https://github.com/hyperledger/cacti/compare/v2.0.0-rc.2...v2.0.0-rc.3) (2024-07-21)
-
-### Code Refactoring
-
-* retire connector plugin specific container images, fix docs ([24b5888](https://github.com/hyperledger/cacti/commit/24b5888247d134ea417fc0e83dccc9826b4075f3))
-
-### BREAKING CHANGES
-
-* Container images are being deleted here and will also
-get deleted from GHCR. Though the public APIs of the Typescript code
-do not change, still, some parts of the documentation will become invalid
-until we update it to match the changes here.
-I invested a large amount of effort into doing this documentation update
-as part of this change but it is very likely that I've missed a few spots
-and therefore it is best to mark this as a breaking change in my opinion
-to call attention to the fact that we still have ways to go with updating
-the documentation around these container images.
-
-1. Deleted all the container images that were just wrappers around the
-cmd-api-server container image installing their own npm package from
-the registry.
-The reason for this is that they ended up just being maintenance burden
-since we can achieve the exact same things just by re-using the API server's
-container image directly.
-2. This way we don't have to deal with CVEs in 10x container images when
-it's really just the one container image that we use as the base that needs
-to deal with them anyway.
-3. I also spent quite a bit of effort in this change to update the README.md
-files of the packages where previously we had plugin specific container images
-defined so that the README.md files have the tutorials that are more up to
-date compared to how they were (most of them had the tutorials completely
-broken for a long while which was causing a lot of difficulties to the
-newcomers who were trying to work with the packages).
-4. The reason why they got so out of date traces back to the undue maintenance
-burden of keeping separate images for each connector plugin. We hope that
-with this simplification we can keep the documentation continuously up to
-date since it will require less time do so.
-5. Also deleted the ci.yaml container building jobs which were relevant to
-the scope of this change so that we also save on CI resources, another
-long-running project that's been in need of some attention from the maintainers.
-
-Signed-off-by: Peter Somogyvari <peter.somogyvari@accenture.com>
-
-# [2.0.0-rc.2](https://github.com/hyperledger/cacti/compare/v2.0.0-rc.1...v2.0.0-rc.2) (2024-07-03)
-
-**Note:** Version bump only for package @hyperledger/cactus-plugin-ledger-connector-go-ethereum-socketio
-
-# [2.0.0-rc.1](https://github.com/hyperledger/cacti/compare/v2.0.0-alpha.2...v2.0.0-rc.1) (2024-06-14)
-
-### Bug Fixes
-
-* **deps:** bulk add missing dependencies - 2023-11-02 ([8addb01](https://github.com/hyperledger/cacti/commit/8addb018b6d124d54d9d948bbaeba6ea33b67153)), closes [#2857](https://github.com/hyperledger/cacti/issues/2857)
-* **security:** address CVE-2021-3749 - axios >=0.22.0 ([61fc700](https://github.com/hyperledger/cacti/commit/61fc7001b1dd0849ab1d9bcab08e2475c695adae))
-* **security:** remediate qs vulnerability CVE-2022-24999 ([536b6b1](https://github.com/hyperledger/cacti/commit/536b6b1b7ab9014ebcd6b162e1a467e78b52afdd))
-
-# [2.0.0-alpha.2](https://github.com/hyperledger/cacti/compare/v2.0.0-alpha.1...v2.0.0-alpha.2) (2023-09-27)
-
-### Bug Fixes
-
-* **security:** the CVE-2022-2421 - upgrade socket.io-parser to >=4.2.1 ([9172172](https://github.com/hyperledger/cacti/commit/917217227a3fa53a00429f047cd6318862e6ab8d)), closes [#2229](https://github.com/hyperledger/cacti/issues/2229) [#2228](https://github.com/hyperledger/cacti/issues/2228)
-* use common conventions: tsconfig.json, package.json ([50f5c02](https://github.com/hyperledger/cacti/commit/50f5c02190ba28b77492c09e81f5d5ba6578e862)), closes [#2216](https://github.com/hyperledger/cacti/issues/2216)
-
-# [2.0.0-alpha.1](https://github.com/hyperledger/cacti/compare/v2.0.0-alpha-prerelease...v2.0.0-alpha.1) (2023-05-19)
-
-**Note:** Version bump only for package @hyperledger/cactus-plugin-ledger-connector-go-ethereum-socketio
-
-# [2.0.0-alpha-prerelease](https://github.com/hyperledger/cacti/compare/v1.2.0...v2.0.0-alpha-prerelease) (2023-05-11)
-
-### Features
-
-* **connector-go-ethereum:** add getBlock and ([3fa9093](https://github.com/hyperledger/cacti/commit/3fa909346074ed91175bfd4b9c81023fa77a6678)), closes [#2255](https://github.com/hyperledger/cacti/issues/2255)
-
-# [1.2.0](https://github.com/hyperledger/cacti/compare/v1.1.3...v1.2.0) (2023-03-28)
-
-### Features
-
-* connector-go-ethereum now can report empty blocks ([6dbe6b5](https://github.com/hyperledger/cacti/commit/6dbe6b54eaee156cd236ebbde4337b8599b05c08))
-
-## [1.1.3](https://github.com/hyperledger/cactus/compare/v1.1.2...v1.1.3) (2022-12-08)
-
-### Features
-
-* **cmd-socketio-server:** support multiple BLP in single server ([0f67085](https://github.com/hyperledger/cactus/commit/0f670855b0fa0fd33f71bf5a1814fb6fcac2c7b6)), closes [#2102](https://github.com/hyperledger/cactus/issues/2102) [#2030](https://github.com/hyperledger/cactus/issues/2030)
-
-## [1.1.2](https://github.com/hyperledger/cactus/compare/v1.1.1...v1.1.2) (2022-11-11)
-
-**Note:** Version bump only for package @hyperledger/cactus-plugin-ledger-connector-go-ethereum-socketio
-
-## [1.1.1](https://github.com/hyperledger/cactus/compare/v1.1.0...v1.1.1) (2022-11-03)
-
-**Note:** Version bump only for package @hyperledger/cactus-plugin-ledger-connector-go-ethereum-socketio
-
-# [1.1.0](https://github.com/hyperledger/cactus/compare/v1.0.0...v1.1.0) (2022-10-17)
-
-### Bug Fixes
-
-* **security:** address CVE-2017-16138 Fixes: [#1776](https://github.com/hyperledger/cactus/issues/1776) ([9f1d013](https://github.com/hyperledger/cactus/commit/9f1d01320cacf859bfd2e03426f85fb234f52dd8))
-
-### Code Refactoring
-
-* **examples:** include sample apps in monorepo build ([51ac163](https://github.com/hyperledger/cactus/commit/51ac1630f53ca3ac881341c7f8847b6ae581b220))
-
-### Features
-
-* **secret:** remove Validator/Verifier secret keys from repository ([59b4af4](https://github.com/hyperledger/cactus/commit/59b4af44835e2babafe398040a280ed23e9b490e))
-
-### BREAKING CHANGES
-
-* **examples:** building discounted-asset-trade app (or any future app that use indy validator)
-                 requires Indy SDK to be installed on the build machine.
-
-Closes: 2029
-
-Signed-off-by: Michal Bajer <michal.bajer@fujitsu.com>
-
-# [1.0.0](https://github.com/hyperledger/cactus/compare/v1.0.0-rc.3...v1.0.0) (2022-03-16)
-
-### Bug Fixes
-
-* **cmd-api-server:** upgrade socket.io - CVE-2022-21676 ([8e1c69e](https://github.com/hyperledger/cactus/commit/8e1c69e7b8ab5e4ccc31a0ec183a9777ccc22cdc)), closes [#1914](https://github.com/hyperledger/cactus/issues/1914)
-* **security:** address CVE-2019-5413 ([212b770](https://github.com/hyperledger/cactus/commit/212b770c705c279dcc766b7230d7519ed9a98748)), closes [#1777](https://github.com/hyperledger/cactus/issues/1777)
-
-# [1.0.0-rc.3](https://github.com/hyperledger/cactus/compare/v1.0.0-rc.2...v1.0.0-rc.3) (2021-12-07)
-
-**Note:** Version bump only for package @hyperledger/cactus-plugin-ledger-connector-go-ethereum-socketio
-
-# [1.0.0-rc.2](https://github.com/hyperledger/cactus/compare/v1.0.0-rc.1...v1.0.0-rc.2) (2021-11-01)
-
-**Note:** Version bump only for package @hyperledger/cactus-plugin-ledger-connector-go-ethereum-socketio
-
-# [1.0.0-rc.1](https://github.com/hyperledger/cactus/compare/v0.10.0...v1.0.0-rc.1) (2021-10-11)
-
-### Features
-
-* **connector-go-ethereum:** add the docker environment ([2583cc7](https://github.com/hyperledger/cactus/commit/2583cc7ff7428a427454e7dd9211a129942e50d4))
-
-# [0.10.0](https://github.com/hyperledger/cactus/compare/v0.9.0...v0.10.0) (2021-09-28)
-
-### Bug Fixes
-
-* **validators:** add some missing parts ([9a8f7db](https://github.com/hyperledger/cactus/commit/9a8f7db746e2a41708e2fe9d5277561d6abac3d4))
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/Dockerfile b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/Dockerfile
deleted file mode 100644
index 1386fc3ffd..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/Dockerfile
+++ /dev/null
@@ -1,15 +0,0 @@
-FROM cactus-cmd-socketio-server:latest
-
-ENV CACTUS_CONNECTOR_GO_ETH_PATH=/opt/cactus-plugin-ledger-connector-go-ethereum-socketio
-
-WORKDIR ${CACTUS_CONNECTOR_GO_ETH_PATH}
-
-COPY ./dist ./dist/
-COPY ./dist/yarn.lock ./package.json ./
-RUN yarn add "${CACTUS_CMD_SOCKETIO_PATH}" \
-        --production --frozen-lockfile --ignore-engines --non-interactive --cache-folder ./.yarnCache && \
-    rm -rf ./.yarnCache
-
-EXPOSE 5050
-VOLUME ["/etc/cactus/"]
-CMD [ "npm", "run", "start" ]
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/README.md b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/README.md
deleted file mode 100644
index 564e02cd13..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/README.md
+++ /dev/null
@@ -1,89 +0,0 @@
-<!--
- Copyright 2021 Hyperledger Cactus Contributors
- SPDX-License-Identifier: Apache-2.0
-
- README.md
--->
-# `@hyperledger/cactus-plugin-ledger-connector-go-ethereum-socketio`
-
-This plugin provides `Cactus` a way to interact with Go-Ethereum networks. Using this we can perform:
-- `sendSyncRequest`: Send sync-typed requests to the ledgers (e.g. getBalance)
-- `sendAsyncRequest`: Send async-typed requests to the ledgers (e.g. sendTransaction)
-- `startMonitor`: Start monitoring blocks on the ledgers
-- `stopMonitor`: Stop the block monitoring
-
-## Summary
-- [Getting started](#getting-started)
-- [Usage samples](#usage-samples)
-- [Contributing](#contributing)
-- [License](#license)
-- [Acknowledgments](#acknowledgments)
-
-## Getting started
-
-### Required software components
-- OS: Linux (recommended Ubuntu20.04,18.04 or CentOS7)
-- Docker (recommend: v17.06.2-ce or greater)
-- node.js v12 (recommend: v12.20.2 or greater)
-
-### Prerequisites
-- Please ensure that the destination ledger (default for samples: [geth-testnet](../../tools/docker/geth-testnet)) is already launched.
-
-## Boot methods
-
-### Common setup
-1. Always run configure command first, from the project root directory:
-    ```
-    pushd ../..
-    npm run configure
-    popd
-    ```
-
-1. Copy default configuration
-- **Remember to replace default CA and to adjust the `default.yaml` configuration on production deployments!**
-    ```
-    mkdir -p /etc/cactus/connector-go-ethereum-socketio/
-    rm -r /etc/cactus/connector-go-ethereum-socketio/*
-    cp -rf ./sample-config/* /etc/cactus/connector-go-ethereum-socketio/
-    ```
-
-### Docker
-- This image depends on `cactus-cmd-socketio-server:latest` to be present in local store. **Make sure to follow docker build instructions in [cactus-cmd-socketio-server README](../../packages/cactus-cmd-socketio-server/README.md)) before bulding this image!**
-- Docker build process will use artifacts from the latest build. Make sure `./dist` contains the version you want to dockerize.
-
-```
-# Build
-pushd ../../packages/cactus-cmd-socketio-server/ && docker build . -t cactus-cmd-socketio-server && popd
-docker build . -t cactus-plugin-ledger-connector-go-ethereum-socketio
-
-# Run
-docker run -v/etc/cactus/:/etc/cactus -p 5050:5050 cactus-plugin-ledger-connector-go-ethereum-socketio
-```
-
-### Manual
-- Ensure ledger ports are exposed to the host first.
-
-```
-npm run start
-```
-
-## Configuration
-- Validator can be configured in `/etc/cactus/connector-go-ethereum-socketio/default.yaml` (see [sample-config](./sample-config/default.yaml) for details).
-- This configuration can be overwriten in `NODE_CONFIG` environment variable (JSON format).
-
-## Usage samples
-- To confirm the operation of this package, please refer to the following business-logic sample applications:
-    - [cactus-example-electricity-trade](../../examples/cactus-example-electricity-trade)
-    - [cactus-example-discounted-asset-trade](../../examples/cactus-example-discounted-asset-trade)
-
-## Contributing
-
-We welcome contributions to Hyperledger Cactus in many forms, and there's always plenty to do!
-
-Please review [CONTRIBUTING.md](../../CONTRIBUTING.md) to get started.
-
-## License
-
-This distribution is published under the Apache License Version 2.0 found in the [LICENSE](../../LICENSE) file.
-
-## Acknowledgments
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/package.json b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/package.json
deleted file mode 100644
index f454e3f416..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/package.json
+++ /dev/null
@@ -1,89 +0,0 @@
-{
-  "name": "@hyperledger/cactus-plugin-ledger-connector-go-ethereum-socketio",
-  "version": "2.0.0-rc.3",
-  "description": "Allows Cactus nodes to connect to a Ethereum ledger ",
-  "keywords": [
-    "Hyperledger",
-    "Cactus",
-    "Integration",
-    "Blockchain",
-    "Distributed Ledger Technology"
-  ],
-  "homepage": "https://github.com/hyperledger/cacti#readme",
-  "bugs": {
-    "url": "https://github.com/hyperledger/cacti/issues"
-  },
-  "repository": {
-    "type": "git",
-    "url": "git+https://github.com/hyperledger/cacti.git"
-  },
-  "license": "Apache-2.0",
-  "author": {
-    "name": "Hyperledger Cactus Contributors",
-    "email": "cactus@lists.hyperledger.org",
-    "url": "https://www.hyperledger.org/use/cacti"
-  },
-  "contributors": [
-    {
-      "name": "Please add yourself to the list of contributors",
-      "email": "your.name@example.com",
-      "url": "https://example.com"
-    }
-  ],
-  "main": "dist/lib/main/typescript/index.js",
-  "module": "dist/lib/main/typescript/index.js",
-  "types": "dist/lib/main/typescript/index.d.ts",
-  "files": [
-    "dist/*"
-  ],
-  "scripts": {
-    "build": "npm run build-ts && npm run build:dev:backend:postbuild",
-    "build-ts": "tsc",
-    "build:dev:backend:postbuild": "npm run init-ethereum",
-    "debug": "nodemon --inspect ./dist/common/core/bin/www.js",
-    "init-ethereum": "cp -af ../../yarn.lock ./dist/lib/yarn.lock",
-    "start": "cd ./dist && node common/core/bin/www.js"
-  },
-  "dependencies": {
-    "@hyperledger/cactus-cmd-socketio-server": "2.0.0-rc.3",
-    "@hyperledger/cactus-common": "2.0.0-rc.3",
-    "@types/node": "18.11.9",
-    "body-parser": "1.20.2",
-    "config": "3.3.9",
-    "cookie-parser": "1.4.6",
-    "debug": "3.1.0",
-    "express": "4.19.2",
-    "http-errors": "1.6.3",
-    "js-yaml": "3.14.1",
-    "jsonwebtoken": "9.0.2",
-    "log4js": "6.4.1",
-    "morgan": "1.10.0",
-    "serve-favicon": "2.4.5",
-    "socket.io": "4.6.2",
-    "web3": "1.8.1",
-    "web3-core": "1.8.1",
-    "web3-core-subscriptions": "1.8.1",
-    "web3-eth": "1.8.1",
-    "web3-utils": "1.8.1"
-  },
-  "devDependencies": {
-    "@hyperledger/cactus-api-client": "2.0.0-rc.3",
-    "@hyperledger/cactus-common": "2.0.0-rc.3",
-    "@hyperledger/cactus-test-tooling": "2.0.0-rc.3",
-    "@types/config": "3.3.2",
-    "@types/cookie-parser": "1.4.5",
-    "@types/express": "4.17.21",
-    "@types/http-errors": "2.0.1",
-    "@types/node": "18.11.9",
-    "@types/shelljs": "0.8.12",
-    "shelljs": "0.8.5",
-    "socket.io-client-fixed-types": "4.5.4"
-  },
-  "engines": {
-    "node": ">=18",
-    "npm": ">=8"
-  },
-  "publishConfig": {
-    "access": "public"
-  }
-}
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/sample-config/default.yaml b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/sample-config/default.yaml
deleted file mode 100644
index 40ba8fd20f..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/sample-config/default.yaml
+++ /dev/null
@@ -1,6 +0,0 @@
-sslParam:
-  port: 5050
-  key: "/etc/cactus/connector-go-ethereum-socketio/CA/connector.priv"
-  cert: "/etc/cactus/connector-go-ethereum-socketio/CA/connector.crt"
-logLevel: "debug"
-ledgerUrl: "ws://geth1:8546"
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/common/core/app.ts b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/common/core/app.ts
deleted file mode 100644
index ff72979cc3..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/common/core/app.ts
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Copyright 2021 Hyperledger Cactus Contributors
- * SPDX-License-Identifier: Apache-2.0
- *
- * app.js
- */
-
-/* Summary:
- *
- */
-
-import type { NextFunction, Request, Response, RequestHandler } from "express";
-import createError = require("http-errors");
-import express = require("express");
-import cookieParser = require("cookie-parser");
-import bodyParser = require("body-parser");
-
-const app: express.Express = express();
-
-app.use(bodyParser.json());
-app.use(bodyParser.urlencoded({ extended: false }));
-app.use(cookieParser() as RequestHandler);
-
-// catch 404 and forward to error handler
-app.use((req: Request, res: Response, next: NextFunction) => {
-  next(createError(404));
-});
-
-// error handler
-app.use(
-  (
-    err: { message: string; status?: number },
-    req: Request,
-    res: Response,
-    next: NextFunction,
-  ) => {
-    // set locals, only providing error in development
-    res.locals.message = err.message;
-    res.locals.error = req.app.get("env") === "development" ? err : {};
-
-    // set erreor response
-    const errorResponse: {} = {
-      statusCode: err.status || 500,
-      message: err.message,
-    };
-
-    // render the error page
-    res.status(err.status || 500);
-    res.send(errorResponse);
-  },
-);
-
-export default app;
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/common/core/bin/www.ts b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/common/core/bin/www.ts
deleted file mode 100644
index a69f3e3a34..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/common/core/bin/www.ts
+++ /dev/null
@@ -1,314 +0,0 @@
-#!/usr/bin/env node
-
-/*
- * Copyright 2022 Hyperledger Cactus Contributors
- * SPDX-License-Identifier: Apache-2.0
- *
- * www.js
- */
-
-/* Summary:
- * Connector: a part independent of end-chains
- */
-
-import app from "../app";
-import https = require("https");
-
-// Overwrite config read path
-export const DEFAULT_NODE_CONFIG_DIR =
-  "/etc/cactus/connector-go-ethereum-socketio/";
-if (!process.env["NODE_CONFIG_DIR"]) {
-  // Must be set before import config
-  process.env["NODE_CONFIG_DIR"] = DEFAULT_NODE_CONFIG_DIR;
-}
-import { configRead } from "@hyperledger/cactus-cmd-socketio-server";
-
-import fs = require("fs");
-import { Server } from "socket.io";
-
-// Log settings
-import { getLogger } from "log4js";
-const logger = getLogger("connector_main[" + process.pid + "]");
-logger.level = configRead("logLevel", "info");
-
-// implementation class of a part dependent of end-chains (server plugin)
-import { ServerPlugin } from "../../../connector/ServerPlugin";
-
-// destination dependency (MONITOR) implementation class
-import { ServerMonitorPlugin } from "../../../connector/ServerMonitorPlugin";
-
-// Normalize a port into a number, string, or false.
-function normalizePort(val: string) {
-  const port = parseInt(val, 10);
-
-  if (isNaN(port)) {
-    // named pipe
-    return val;
-  }
-
-  if (port >= 0) {
-    // port number
-    return port;
-  }
-
-  return false;
-}
-
-export async function startGoEthereumSocketIOConnector() {
-  const Splug = new ServerPlugin();
-  const Smonitor = new ServerMonitorPlugin();
-
-  // Get port from environment and store in Express.
-  const sslport = normalizePort(
-    process.env.PORT || configRead("sslParam.port"),
-  );
-  app.set("port", sslport);
-
-  // Specify private key and certificate
-  let keyString: string;
-  let certString: string;
-  try {
-    keyString = configRead<string>("sslParam.keyValue");
-    certString = configRead<string>("sslParam.certValue");
-  } catch {
-    keyString = fs.readFileSync(configRead("sslParam.key"), "ascii");
-    certString = fs.readFileSync(configRead("sslParam.cert"), "ascii");
-  }
-
-  // Create HTTPS server.
-  const server = https.createServer(
-    {
-      key: keyString,
-      cert: certString,
-    },
-    app,
-  ); // Start as an https server.
-  const io = new Server(server);
-
-  // Event listener for HTTPS server "error" event.
-  server.on("error", (error: any) => {
-    if (error.syscall !== "listen") {
-      throw error;
-    }
-
-    const bind =
-      typeof sslport === "string" ? "Pipe " + sslport : "Port " + sslport;
-
-    // handle specific listen errors with friendly messages
-    switch (error.code) {
-      case "EACCES":
-        console.error(bind + " requires elevated privileges");
-        process.exit(1);
-        break;
-      case "EADDRINUSE":
-        console.error(bind + " is already in use");
-        process.exit(1);
-        break;
-      default:
-        throw error;
-    }
-  });
-
-  io.on("connection", function (client) {
-    logger.info("Client " + client.id + " connected.");
-
-    /**
-     * request: The server plugin's request to execute a function
-     * @param {JSON} data: Request Body (following format)
-     * JSON: {
-     *          "func":        (string) Function name ,// For example : "transferNumericAsset"
-     *          "args":        (Object) argument// for example , {"from" : "xxx" , "to" : "yyy" , "value" : "10,000"}
-     *       }
-     **/
-    client.on("request", function (data) {
-      const func = data.func;
-      const args = data.args;
-      console.log("##[HL-BC] Invoke smart contract to transfer asset(D1)");
-      logger.info("*** REQUEST ***");
-      logger.info("Client ID :" + client.id);
-      logger.info("Data  :" + JSON.stringify(data));
-
-      // Check for the existence of the specified function and call it if it exists.
-      if (Splug.isExistFunction(func)) {
-        // Can be called with Server plugin function name.
-        (Splug as any)
-          [func](args)
-          .then((respObj: unknown) => {
-            logger.info("*** RESPONSE ***");
-            logger.info("Client ID :" + client.id);
-            logger.info("Response  :" + JSON.stringify(respObj));
-            client.emit("response", respObj);
-          })
-          .catch((errObj: unknown) => {
-            logger.error("*** ERROR ***");
-            logger.error("Client ID :" + client.id);
-            logger.error("Detail    :" + JSON.stringify(errObj));
-            client.emit("connector_error", errObj);
-          });
-      } else {
-        // No such function
-        const emsg = "Function " + func + " not found!";
-        logger.error(emsg);
-        const retObj = {
-          status: 504,
-          errorDetail: emsg,
-        };
-        client.emit("connector_error", retObj);
-      }
-    });
-
-    // TODO: "request2" -> "request"
-    client.on("request2", function (data) {
-      const methodType = data.method.type;
-      const args: Record<string, any> = {
-        contract: data.contract,
-        method: data.method,
-        args: data.args,
-      };
-
-      if (data.reqID !== undefined) {
-        logger.info(`##add reqID: ${data.reqID}`);
-        args["reqID"] = data.reqID;
-      }
-
-      console.log("##[HL-BC] Invoke smart contract to transfer asset(D1)");
-      logger.info("*** REQUEST ***");
-      logger.info("Client ID :" + client.id);
-      logger.info("Data  :" + JSON.stringify(data));
-
-      // Check for the existence of the specified function and call it if it exists.
-      if (methodType === "web3Eth") {
-        // Can be called with Server plugin function name.
-        Splug.web3Eth(args)
-          .then((respObj) => {
-            logger.info("*** RESPONSE ***");
-            logger.info("Client ID :" + client.id);
-            logger.info("Response  :" + JSON.stringify(respObj));
-            client.emit("response", respObj);
-          })
-          .catch((errObj) => {
-            logger.error("*** ERROR ***");
-            logger.error("Client ID :" + client.id);
-            logger.error("Detail    :" + JSON.stringify(errObj));
-            client.emit("connector_error", errObj);
-          });
-      } else if (methodType === "contract") {
-        // Can be called with Server plugin function name.
-        Splug.contract(args)
-          .then((respObj) => {
-            logger.info("*** RESPONSE ***");
-            logger.info("Client ID :" + client.id);
-            logger.info("Response  :" + JSON.stringify(respObj));
-            client.emit("response", respObj);
-          })
-          .catch((errObj) => {
-            logger.error("*** ERROR ***");
-            logger.error("Client ID :" + client.id);
-            logger.error("Detail    :" + JSON.stringify(errObj));
-            client.emit("connector_error", errObj);
-          });
-      } else if (methodType === "function") {
-        const func = args["method"].command;
-        // Check for the existence of the specified function and call it if it exists.
-        if (Splug.isExistFunction(func)) {
-          // Can be called with Server plugin function name.
-          (Splug as any)
-            [func](args)
-            .then((respObj: unknown) => {
-              logger.info("*** RESPONSE ***");
-              logger.info("Client ID :" + client.id);
-              logger.info("Response  :" + JSON.stringify(respObj));
-              client.emit("response", respObj);
-            })
-            .catch((errObj: unknown) => {
-              logger.error("*** ERROR ***");
-              logger.error("Client ID :" + client.id);
-              logger.error("Detail    :" + JSON.stringify(errObj));
-              client.emit("connector_error", errObj);
-            });
-        } else {
-          // No such function
-          const emsg = "Function " + func + " not found!";
-          logger.error(emsg);
-          const retObj = {
-            status: 504,
-            errorDetail: emsg,
-          };
-          client.emit("connector_error", retObj);
-        }
-      } else {
-        // No such function
-        const emsg = "method.type " + methodType + " not found!";
-        logger.error(emsg);
-        const retObj = {
-          status: 504,
-          errorDetail: emsg,
-        };
-        client.emit("connector_error", retObj);
-      }
-    });
-
-    /**
-     * startMonitor: starting block generation event monitoring
-     **/
-    client.on("startMonitor", function (monitorOptions) {
-      Smonitor.startMonitor(
-        client.id,
-        monitorOptions?.allBlocks ?? false,
-        (event) => {
-          let emitType = "";
-          if (event.status == 200) {
-            emitType = "eventReceived";
-            logger.info("event data callbacked.");
-          } else {
-            emitType = "monitor_error";
-          }
-          client.emit(emitType, event);
-        },
-      );
-    });
-
-    /**
-     * stopMonitor: block generation events monitoring stopping
-     **/
-    // I think it is more common to stop from the disconnect described later, but I will prepare for it.
-    client.on("stopMonitor", function (reason) {
-      Smonitor.stopMonitor(client.id).then(() => {
-        logger.info("stopMonitor completed.");
-      });
-    });
-
-    client.on("disconnect", function (reason) {
-      // Unexpected disconnect as well as explicit disconnect request can be received here
-      logger.info("Client " + client.id + " disconnected.");
-      logger.info("Reason    :" + reason);
-      // Stop monitoring if disconnected client is for event monitoring
-      Smonitor.stopMonitor(client.id);
-    });
-  });
-
-  // Listen on provided port, on all network interfaces.
-  return new Promise<https.Server>((resolve) =>
-    server.listen(sslport, () => resolve(server)),
-  );
-}
-
-if (require.main === module) {
-  // When this file executed as a script, not loaded as module - run the connector
-  startGoEthereumSocketIOConnector()
-    .then((server) => {
-      const addr = server.address();
-
-      if (!addr) {
-        logger.error("Could not get running server address - exit.");
-        process.exit(1);
-      }
-
-      const bind =
-        typeof addr === "string" ? "pipe " + addr : "port " + addr.port;
-      logger.debug("Listening on " + bind);
-    })
-    .catch((err) => {
-      logger.error("Could not start go-ethereum-socketio connector:", err);
-    });
-}
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/PluginUtil.ts b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/PluginUtil.ts
deleted file mode 100644
index 259b9af065..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/PluginUtil.ts
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright 2021 Hyperledger Cactus Contributors
- * SPDX-License-Identifier: Apache-2.0
- *
- * PluginUtil.js
- */
-
-/*
- * Summary:
- * Cooperation server: utility library dependent on endchains
- * For example, implementing internal functions that should not be exposed as functions of server plugins.
- */
-
-/*
- * convNum
- *
- * @param {String/Number} value: The scientific string or numeric value to be converted. For numbers, it is returned as is.
- * @param {String/Number} defaultValue: The value to use if conversion was not possible. Text or number in scientific notation. Optional.
- *
- * @return {Number} The value converted to a number, or the defaultValue if the conversion failed.
- *
- * @desc exponentiation is also supported. The following formats are supported:. (value, defaultValue)
- *         3.78*10^14
- *         3.78e14
- */
-export function convNum(value: number | string, defaultValue: number | string) {
-  let retValue = 0;
-  let defValue = 0;
-
-  switch (typeof defaultValue) {
-    case "number":
-      defValue = defaultValue;
-      break;
-    case "string":
-      const defValueStr = defaultValue.replace(/\*10\^/g, "e");
-      defValue = parseFloat(defValueStr);
-      break;
-    default:
-      // undefined should also be included here.
-      // Fixed value because of cumbersome handling.
-      defValue = 0;
-      break;
-  } // switch(typeof(defaultValue))
-
-  if (Number.isNaN(defValue)) {
-    // number is guaranteed.
-    defValue = 0;
-  }
-
-  switch (typeof value) {
-    case "number":
-      retValue = value;
-      break;
-    case "string":
-      const valueStr = value.replace(/\*10\^/g, "e");
-      retValue = parseFloat(valueStr);
-      break;
-    default:
-      // Set default value.
-      retValue = defValue;
-      break;
-  } // switch(typeof(value))
-
-  if (Number.isNaN(retValue)) {
-    // number is guaranteed.
-    retValue = defValue;
-  }
-
-  return retValue;
-}
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/ServerMonitorPlugin.ts b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/ServerMonitorPlugin.ts
deleted file mode 100644
index d4b78125ec..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/ServerMonitorPlugin.ts
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * Copyright 2021 Hyperledger Cactus Contributors
- * SPDX-License-Identifier: Apache-2.0
- *
- * ServerMonitorPlugin.js
- */
-
-/*
- * Summary:
- * Connector: monitoring class of a part dependent on end-chains
- * Used in the case of monitoring continuously.
- * Processing that ends with the acceptance of a single event is handled by a custom function implementation in server plugins.
- * Unlike server plugins, it basically does not handle its own functions.
- */
-
-// configuration file
-import {
-  configRead,
-  signMessageJwt,
-} from "@hyperledger/cactus-cmd-socketio-server";
-// Log settings
-import { getLogger } from "log4js";
-const logger = getLogger("ServerMonitorPlugin[" + process.pid + "]");
-logger.level = configRead("logLevel", "info");
-// Load libraries, SDKs, etc. according to specifications of endchains as needed
-import Web3 from "web3";
-import { Subscription } from "web3-core-subscriptions";
-import { BlockHeader } from "web3-eth";
-
-import { safeStringifyException } from "@hyperledger/cactus-common";
-
-export type MonitorCallback = (callback: {
-  status: number;
-  blockData?: string;
-  errorDetail?: string;
-}) => void;
-
-/*
- * ServerMonitorPlugin
- * Class definitions of server monitoring
- */
-export class ServerMonitorPlugin {
-  _subscriptionTable = new Map<string, Subscription<BlockHeader>>();
-
-  /*
-   * startMonitor
-   * Start Monitoring
-   * @param {string} clientId: Client ID from which monitoring start request was made
-   * @param {function} cb: A callback function that receives monitoring results at any time.
-   */
-
-  blockSigner = (blockData: any) => {
-    const signedBlockData = signMessageJwt({
-      blockData: blockData,
-    });
-    logger.debug(`signedBlockData = ${signedBlockData}`);
-    return {
-      status: 200,
-      blockData: signedBlockData,
-    };
-  };
-
-  startMonitor(clientId: string, allBlocks = false, cb: MonitorCallback) {
-    logger.info("*** START MONITOR ***");
-    logger.info("Client ID :" + clientId);
-    // Implement handling to receive events from an end-chain and return them in a callback function
-    let sub = this._subscriptionTable.get(clientId);
-    if (!sub) {
-      logger.info("create new web3 subscription and start watching.");
-      try {
-        const web3 = new Web3(
-          new Web3.providers.WebsocketProvider(configRead("ledgerUrl")),
-        );
-        sub = web3.eth.subscribe("newBlockHeaders");
-        // subscription should be managed by client ID
-        // (You should never watch multiple urls from the same client)
-        this._subscriptionTable.set(clientId, sub);
-        sub.subscribe(async (error: any, block: BlockHeader) => {
-          if (!error) {
-            console.log("##[HL-BC] Notify new block data(D2)");
-            const blockData = await web3.eth.getBlock(block.hash, true);
-            const trLength = blockData.transactions.length;
-            logger.info(
-              trLength + " transactions in block " + blockData.number,
-            );
-            console.log("##[HL-BC] Validate transactions(D3)");
-            console.log("##[HL-BC] digital sign on valid transaction(D4)");
-
-            if (allBlocks == false) {
-              if (trLength > 0) {
-                logger.info("*** SEND BLOCK DATA ***");
-                logger.debug(
-                  "monitor is set to report blocks with at least one transaction",
-                );
-                logger.debug(`blockData = ${JSON.stringify(blockData)}`);
-                const retObj = this.blockSigner(blockData);
-                cb(retObj);
-              }
-            } else {
-              logger.info("*** SEND BLOCK DATA ***");
-              logger.debug("monitor is set to report empty blocks");
-              logger.debug(`blockData = ${JSON.stringify(blockData)}`);
-              const retObj = this.blockSigner(blockData);
-              cb(retObj);
-            }
-          } else {
-            const errObj = {
-              status: 504,
-              errorDetail: safeStringifyException(error),
-            };
-            cb(errObj);
-          }
-        });
-      } catch (e) {
-        const errObj = {
-          status: 504,
-          errorDetail: safeStringifyException(e),
-        };
-        logger.error(errObj);
-        cb(errObj);
-      }
-    } else {
-      logger.info("target subscription has already start watching.");
-    }
-  }
-
-  /*
-   * stopMonitor
-   * monitoring stop
-   * @param {string} clientId: Client ID from which monitoring stop request was made
-   */
-  async stopMonitor(clientId: string) {
-    // Implement a process to end EC monitoring
-    const sub = this._subscriptionTable.get(clientId);
-    if (sub) {
-      // Stop the subscription & Remove it from table
-      logger.info("stop watching and remove subscription.");
-      await sub.unsubscribe();
-      this._subscriptionTable.delete(clientId);
-    }
-  }
-}
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/ServerPlugin.ts b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/ServerPlugin.ts
deleted file mode 100644
index d4fcb4b078..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/ServerPlugin.ts
+++ /dev/null
@@ -1,736 +0,0 @@
-/*
- * Copyright 2021 Hyperledger Cactus Contributors
- * SPDX-License-Identifier: Apache-2.0
- *
- * ServerPlugin.js
- */
-
-/*
- * Summary:
- * Connector: a part dependent on endchains
- * Define and implement the function according to the connection destination dependent part (ADAPTER) on the core side.
- */
-
-// configuration file
-import {
-  configRead,
-  signMessageJwt,
-} from "@hyperledger/cactus-cmd-socketio-server";
-// Log settings
-import { getLogger } from "log4js";
-const logger = getLogger("ServerPlugin[" + process.pid + "]");
-logger.level = configRead("logLevel", "info");
-// utility
-import * as SplugUtil from "./PluginUtil";
-// Load libraries, SDKs, etc. according to specifications of endchains as needed
-import Web3 from "web3";
-import { AbiItem } from "web3-utils";
-import { BlockNumber } from "web3-core";
-import { safeStringifyException } from "@hyperledger/cactus-common";
-
-const WEB3_HTTP_PROVIDER_OPTIONS = {
-  keepAlive: true,
-};
-
-const WEB3_WS_PROVIDER_OPTIONS = {
-  // Enable auto reconnection
-  reconnect: {
-    auto: true,
-    delay: 3000, // ms
-    maxAttempts: 30,
-    onTimeout: false,
-  },
-};
-
-function getWeb3Provider(host: string) {
-  const hostUrl = new URL(host);
-
-  switch (hostUrl.protocol) {
-    case "http:":
-    case "https:":
-      return new Web3.providers.HttpProvider(host, WEB3_HTTP_PROVIDER_OPTIONS);
-    case "ws:":
-      return new Web3.providers.WebsocketProvider(
-        host,
-        WEB3_WS_PROVIDER_OPTIONS,
-      );
-    default:
-      throw new Error(
-        `Unknown host protocol ${hostUrl.protocol} in URL ${host}`,
-      );
-  }
-}
-
-const web3Provider = getWeb3Provider(configRead("ledgerUrl"));
-const web3 = new Web3(web3Provider);
-
-export function shutdown() {
-  web3Provider.disconnect();
-}
-
-/*
- * ServerPlugin
- * Class definition for server plugins
- */
-export class ServerPlugin {
-  /*
-   * constructors
-   */
-  constructor() {
-    // Define dependent specific settings
-  }
-
-  /*
-   * isExistFunction
-   *
-   * @param {String} funcName: The function name to check.
-   *
-   * @return {Boolean} true: Yes./false: does not exist.
-   *
-   * @desc Return if end-chain specific funtion is implemented
-   *       Scope of this function is in this class
-   *       Functions that should not be called directly should be implemented outside this class like utilities.
-   */
-  isExistFunction(funcName: string) {
-    if ((this as any)[funcName]) {
-      return true;
-    } else {
-      return false;
-    }
-  }
-
-  /*
-   * getBlock
-   *
-   * @param {String|Number} block hash, block number or string:"earliest", "latest" or "pending"
-   *
-   * @return {Object} JSON object
-   */
-
-  async getBlock(args: any) {
-    logger.debug("getBlock start");
-
-    const blockID: BlockNumber = args.args.args[0];
-    const returnTransactionObjects = args.args.args[1] ?? false;
-    const reqID = args["reqID"];
-
-    if (!blockID) {
-      const emsg = "JSON parse error!";
-      logger.warn(emsg);
-      throw {
-        resObj: {
-          status: 504,
-          errorDetail: emsg,
-        },
-        id: reqID,
-      };
-    }
-
-    try {
-      const blockData = await web3.eth.getBlock(
-        blockID,
-        returnTransactionObjects,
-      );
-      const result = {
-        blockData: blockData,
-      };
-      logger.debug(`getBlock(): result: ${result}`);
-
-      const signedResults = signMessageJwt({ result });
-      logger.debug(`getBlock(): signedResults: ${signedResults}`);
-
-      return {
-        resObj: {
-          status: 200,
-          data: signedResults,
-        },
-        id: reqID,
-      };
-    } catch (e) {
-      const retObj = {
-        resObj: {
-          status: 504,
-          errorDetail: safeStringifyException(e),
-        },
-        id: reqID,
-      };
-
-      logger.error(`##getBlock: retObj: ${JSON.stringify(retObj)}`);
-
-      throw retObj;
-    }
-  }
-
-  /*
-   * getTransactionReceipt
-   *
-   * @param {String} transaction hash
-   *
-   * @return {Object} JSON object
-   */
-
-  async getTransactionReceipt(args: any) {
-    logger.debug("getTransactionReceipt start");
-
-    const txHash: string = args.args.args[0];
-    const reqID = args["reqID"];
-
-    if (txHash === undefined) {
-      const emsg = "JSON parse error!";
-      logger.warn(emsg);
-      throw {
-        resObj: {
-          status: 504,
-          errorDetail: emsg,
-        },
-        id: reqID,
-      };
-    }
-
-    try {
-      const txReceipt = await web3.eth.getTransactionReceipt(txHash);
-      logger.info(`getTransactionReceipt(): txReceipt: ${txReceipt}`);
-
-      const result = {
-        txReceipt: txReceipt,
-      };
-      logger.debug(`getTransactionReceipt(): result: ${result}`);
-
-      const signedResults = signMessageJwt({ result: result });
-      logger.debug(`getTransactionReceipt(): signedResults: ${signedResults}`);
-
-      const retObj = {
-        resObj: {
-          status: 200,
-          data: signedResults,
-        },
-        id: reqID,
-      };
-
-      logger.debug(
-        `##getTransactionReceipt: retObj: ${JSON.stringify(retObj)}`,
-      );
-      return retObj;
-    } catch (e) {
-      const retObj = {
-        resObj: {
-          status: 504,
-          errorDetail: safeStringifyException(e),
-        },
-        id: reqID,
-      };
-
-      logger.error(
-        `##getTransactionReceipt: retObj: ${JSON.stringify(retObj)}`,
-      );
-
-      throw retObj;
-    }
-  }
-
-  // Define an arbitrary function and implement it according to specifications of end-chains
-  /**
-   * getNumericBalance
-   * Get numerical balance
-   *
-   * @param {Object} args JSON Object
-   * {
-   *      "referedAddress":<reference account>,
-   *      "reqID":<request ID> (option)
-   * }
-   * @return {Object} JSON object
-   *
-   * @todo Return string/BN instead of number
-   * @todo Return signMessageJwt() message instead of plain message.
-   */
-  async getNumericBalance(args: any) {
-    logger.debug("getNumericBalance start");
-
-    const referedAddress = args.args.args[0];
-    const reqID = args["reqID"];
-
-    if (referedAddress === undefined) {
-      const emsg = "JSON parse error!";
-      logger.warn(emsg);
-      throw {
-        resObj: {
-          status: 504,
-          errorDetail: emsg,
-        },
-        id: reqID,
-      };
-    }
-
-    const ethargs = referedAddress;
-
-    // Handling exceptions to absorb the difference of interest.
-    try {
-      const balance = await web3.eth.getBalance(ethargs);
-      const amountVal = parseInt(balance, 10);
-      const retObj = {
-        resObj: {
-          status: 200,
-          amount: amountVal,
-        },
-        id: reqID,
-      };
-      logger.debug(`##getNumericBalance: retObj: ${JSON.stringify(retObj)}`);
-      return retObj;
-    } catch (e) {
-      const retObj = {
-        resObj: {
-          status: 504,
-          errorDetail: safeStringifyException(e),
-        },
-        id: reqID,
-      };
-
-      logger.error(`##getNumericBalance: retObj: ${JSON.stringify(retObj)}`);
-
-      throw retObj;
-    }
-  }
-
-  /**
-   * @deprecated - Not usable, can't unlock account remotely at the moment.
-   *
-   * transferNumericAsset
-   * Transfer numerical asset
-   *
-   * @param {Object} args JSON Object
-   * {
-   *      "fromAddress":<sender account>,
-   *      "toAddress":<receiver account>,
-   *      "amount":<transfering amount>,
-   *      "reqID":<request ID> (option)
-   * }
-   * @return {Object} JSON object
-   */
-  transferNumericAsset(args: any) {
-    return new Promise((resolve, reject) => {
-      logger.info("transferNumericAsset start");
-
-      let retObj: Record<string, any>;
-      let sendArgs = {};
-      const sendFunction = "sendTransaction";
-      // const funcParam = args;
-      const funcParam = args.args.args[0];
-      const reqID = args["reqID"];
-
-      if (
-        funcParam["fromAddress"] == undefined ||
-        funcParam["toAddress"] == undefined ||
-        funcParam["amount"] == undefined
-      ) {
-        const emsg = "JSON parse error!";
-        logger.warn(emsg);
-        retObj = {
-          resObj: {
-            status: 504,
-            errorDetail: emsg,
-          },
-        };
-        return reject(retObj);
-      }
-      // Dealing with exponentiation strings.
-      const amount = SplugUtil.convNum(funcParam["amount"], 0);
-
-      // Create an argument object for sendTransaction.
-      sendArgs = {
-        from: funcParam["fromAddress"],
-        to: funcParam["toAddress"],
-        value: amount,
-      };
-
-      logger.info("send_func  :" + sendFunction);
-      logger.info("sendArgs  :" + JSON.stringify(sendArgs));
-
-      // Handle the exception once to absorb the difference of interest.
-      try {
-        const res = web3.eth[sendFunction](sendArgs);
-
-        retObj = {
-          resObj: {
-            status: 200,
-            txid: res,
-          },
-        };
-        if (reqID !== undefined) {
-          retObj["reqID"] = reqID;
-        }
-        logger.debug(
-          `##transferNumericAsset: retObj: ${JSON.stringify(retObj)}`,
-        );
-        return resolve(retObj);
-      } catch (e) {
-        retObj = {
-          resObj: {
-            status: 504,
-            errorDetail: safeStringifyException(e),
-          },
-        };
-        logger.error(retObj);
-
-        if (reqID !== undefined) {
-          retObj["reqID"] = reqID;
-        }
-        logger.debug(
-          `##transferNumericAsset: retObj: ${JSON.stringify(retObj)}`,
-        );
-
-        return reject(retObj);
-      }
-    });
-  }
-
-  /*
-   * getNonce
-   * Get nonce. nonce is transaction count.
-   *
-   * @param {Object} args JSON Object
-   * {
-   *      "targetAddress":<target account>,
-   *      "reqID":<request ID> (option)
-   * }
-   * @return {Object} JSON object
-   */
-  async getNonce(args: any) {
-    logger.debug("getNonce start");
-
-    const targetAddress = args.args.args.args[0];
-    const reqID = args["reqID"];
-
-    if (targetAddress === undefined) {
-      const emsg = "JSON parse error!";
-      logger.warn(emsg);
-      return {
-        resObj: {
-          status: 504,
-          errorDetail: emsg,
-        },
-        id: reqID,
-      };
-    }
-
-    // var ethargs = '0x' + targetAddress;
-    const ethargs = targetAddress;
-    logger.debug(
-      `getNonce(): ethargs: ${ethargs}, targetAddress: ${targetAddress}`,
-    );
-
-    // Handling exceptions to absorb the difference of interest.
-    try {
-      const txnCount = await web3.eth.getTransactionCount(ethargs);
-      logger.info(`getNonce(): txnCount: ${txnCount}`);
-      const hexStr = web3.utils.toHex(txnCount);
-      logger.info(`getNonce(): hexStr: ${hexStr}`);
-      const result = {
-        nonce: txnCount,
-        nonceHex: hexStr,
-      };
-      logger.debug(`getNonce(): result: ${result}`);
-
-      const signedResults = signMessageJwt({ result: result });
-      logger.debug(`getNonce(): signedResults: ${signedResults}`);
-      const retObj = {
-        resObj: {
-          status: 200,
-          data: signedResults,
-        },
-        id: reqID,
-      };
-
-      logger.debug(`##getNonce: retObj: ${JSON.stringify(retObj)}`);
-
-      return retObj;
-    } catch (e) {
-      const retObj = {
-        resObj: {
-          status: 504,
-          errorDetail: safeStringifyException(e),
-        },
-        id: reqID,
-      };
-
-      logger.error(`##getNonce: retObj: ${JSON.stringify(retObj)}`);
-
-      return retObj;
-    }
-  }
-
-  /*
-   * toHex
-   * Convert to hex string.
-   *
-   * @param {Object} args JSON Object
-   * {
-   *      "value":<value>,
-   *      "reqID":<request ID> (option)
-   * }
-   * @return {Object} JSON object
-   */
-  async toHex(args: any) {
-    logger.debug("toHex start");
-
-    const targetValue = args.args.args.args[0];
-    const reqID = args["reqID"];
-
-    if (targetValue === undefined) {
-      const emsg = "JSON parse error!";
-      logger.warn(emsg);
-      return {
-        resObj: {
-          status: 504,
-          errorDetail: emsg,
-        },
-        id: reqID,
-      };
-    }
-
-    logger.debug(`toHex(): targetValue: ${targetValue}`);
-
-    // Handling exceptions to absorb the difference of interest.
-    try {
-      const hexStr = web3.utils.toHex(targetValue);
-      logger.info(`toHex(): hexStr: ${hexStr}`);
-      const result = {
-        hexStr: hexStr,
-      };
-      logger.debug(`toHex(): result: ${result}`);
-
-      const signedResults = signMessageJwt({ result: result });
-      logger.debug(`toHex(): signedResults: ${signedResults}`);
-
-      const retObj = {
-        resObj: {
-          status: 200,
-          data: signedResults,
-        },
-        id: reqID,
-      };
-
-      logger.debug(`##toHex: retObj: ${JSON.stringify(retObj)}`);
-      return retObj;
-    } catch (e) {
-      const retObj = {
-        resObj: {
-          status: 504,
-          errorDetail: safeStringifyException(e),
-        },
-        id: reqID,
-      };
-      logger.error(retObj);
-
-      logger.debug(`##toHex: retObj: ${JSON.stringify(retObj)}`);
-
-      return retObj;
-    }
-  }
-
-  /*
-   * sendRawTransaction
-   * send row trancastion
-   *
-   * @param {Object} args JSON Object
-   * {
-   *      "serializedTx":<Serialized and signed transaction>
-   * }
-   * @return {Object} JSON object
-   *
-   * @todo Return entire transaction receipt
-   */
-  async sendRawTransaction(args: any) {
-    logger.debug("sendRawTransaction(start");
-
-    const funcParam = args.args.args[0];
-    const reqID = args["reqID"];
-
-    // Handle the exception once to absorb the difference of interest.
-    try {
-      if (!funcParam || funcParam["serializedTx"] == undefined) {
-        const emsg = "JSON parse error!";
-        logger.warn(emsg);
-        return {
-          resObj: {
-            status: 504,
-            errorDetail: emsg,
-          },
-          id: reqID,
-        };
-      }
-
-      const serializedTx = funcParam["serializedTx"];
-      logger.info("serializedTx  :" + serializedTx);
-
-      const res = await web3.eth.sendSignedTransaction(serializedTx);
-      const result = {
-        txid: res.transactionHash,
-      };
-
-      const signedResults = signMessageJwt({ result });
-      logger.debug(`sendRawTransaction(): signedResults: ${signedResults}`);
-      const retObj = {
-        resObj: {
-          status: 200,
-          data: signedResults,
-        },
-        id: reqID,
-      };
-
-      logger.debug(`##sendRawTransaction: retObj: ${JSON.stringify(retObj)}`);
-
-      return retObj;
-    } catch (e) {
-      const retObj = {
-        resObj: {
-          status: 504,
-          errorDetail: safeStringifyException(e),
-        },
-        id: reqID,
-      };
-
-      logger.error(`##sendRawTransaction: retObj: ${JSON.stringify(retObj)}`);
-
-      return retObj;
-    }
-  }
-
-  /*
-   * web3Eth
-   *
-   * @param {Object} args JSON Object
-   * {
-   *      "method":<method information>,
-   *      "args":<argument information>,
-   *      "reqID":<request ID> (option)
-   * }
-   * @return {Object} JSON object
-   */
-  async web3Eth(args: any) {
-    logger.debug("web3Eth start");
-
-    const sendFunction = args.method.command;
-    const sendArgs = args.args.args ?? [];
-    const reqID = args["reqID"];
-
-    logger.debug("send_func  :", sendFunction);
-    logger.debug("sendArgs  :", JSON.stringify(sendArgs));
-
-    // Handle the exception once to absorb the difference of interest.
-    try {
-      const looseWeb3Eth = web3.eth as any;
-
-      const isSafeToCall =
-        Object.prototype.hasOwnProperty.call(looseWeb3Eth, sendFunction) &&
-        typeof looseWeb3Eth[sendFunction] === "function";
-      if (!isSafeToCall) {
-        throw new Error(
-          `Invalid method name provided in request. ${sendFunction} does not exist on the Web3.Eth 1.7+ object.`,
-        );
-      }
-
-      const result = await looseWeb3Eth[sendFunction](...sendArgs);
-
-      const signedResults = signMessageJwt({ result: result });
-      const retObj = {
-        resObj: {
-          status: 200,
-          data: signedResults,
-        },
-        id: reqID,
-      };
-
-      logger.debug(`##web3Eth: retObj: ${JSON.stringify(retObj)}`);
-
-      return retObj;
-    } catch (e) {
-      const retObj = {
-        resObj: {
-          status: 504,
-          errorDetail: safeStringifyException(e),
-        },
-        id: reqID,
-      };
-      logger.error(retObj);
-
-      logger.error(`##web3Eth: retObj: ${JSON.stringify(retObj)}`);
-
-      return retObj;
-    }
-  }
-
-  /*
-   * contract
-   *
-   * @param {Object} args JSON Object
-   * {
-   *      "contract":<contract information>,
-   *      "method":<method information>,
-   *      "args":<argument information>,
-   *      "reqID":<request ID> (option)
-   * }
-   * @return {Object} JSON object
-   */
-  async contract(args: any) {
-    logger.debug("contract start");
-
-    const sendCommand = args.method.command;
-    const sendFunction = args.method.function;
-    const sendArgs = args.args.args ?? [];
-    const reqID = args["reqID"];
-
-    logger.info("sendCommand  :" + sendCommand);
-    logger.info("sendFunction  :" + sendFunction);
-    logger.info("sendArgs  :" + JSON.stringify(sendArgs));
-
-    // Handle the exception once to absorb the difference of interest.
-    try {
-      const contract = new web3.eth.Contract(
-        args.contract.abi as AbiItem[],
-        args.contract.address,
-      );
-      (contract as any).setProvider(web3.currentProvider);
-
-      const isSafeToCall =
-        Object.prototype.hasOwnProperty.call(contract.methods, sendCommand) &&
-        typeof contract.methods[sendCommand] === "function";
-      if (!isSafeToCall) {
-        throw new Error(
-          `Invalid method name provided in request. ${sendCommand} does not exist on the Web3 contract object's "methods" property.`,
-        );
-      }
-
-      // TODO - args.invocationParams do last
-      const result = await contract.methods[sendCommand](...sendArgs)[
-        sendFunction
-      ]();
-      logger.debug(`##contract: result: ${result}`);
-
-      const signedResults = signMessageJwt({ result: result });
-      const retObj = {
-        resObj: {
-          status: 200,
-          data: signedResults,
-        },
-        id: reqID,
-      };
-
-      logger.debug(`##contract: retObj: ${JSON.stringify(retObj)}`);
-
-      return retObj;
-    } catch (e) {
-      const retObj = {
-        resObj: {
-          status: 504,
-          errorDetail: safeStringifyException(e),
-        },
-        id: reqID,
-      };
-      logger.error(retObj);
-
-      logger.error(`##contract: retObj: ${JSON.stringify(retObj)}`);
-
-      return retObj;
-    }
-  }
-} /* class */
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/template/PluginConfig_template.ts b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/template/PluginConfig_template.ts
deleted file mode 100644
index 0ff81bbf61..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/template/PluginConfig_template.ts
+++ /dev/null
@@ -1,16 +0,0 @@
-/*
- * Copyright 2021 Hyperledger Cactus Contributors
- * SPDX-License-Identifier: Apache-2.0
- *
- * PluginConfig_template.js
- */
-
-/*
- * Summary:
- * Cooperation server: configuration file of a part dependent on end-chains
- * Definition values specific to the connection dependent part, etc.
- */
-
-module.exports = {
-  // Nothing special
-};
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/template/PluginUtil_template.ts b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/template/PluginUtil_template.ts
deleted file mode 100644
index df535f2278..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/template/PluginUtil_template.ts
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
- * Copyright 2021 Hyperledger Cactus Contributors
- * SPDX-License-Identifier: Apache-2.0
- *
- * PluginUtil_template.js
- */
-
-/*
- * Summary:
- * Cooperation server: utility libraries of a part dependent on end-chains
- * For example, implementing internal functions that should not be exposed as functions of ServerPlugin.
- */
-
-// Nothing special
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/template/ServerMonitorPlugin_template.ts b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/template/ServerMonitorPlugin_template.ts
deleted file mode 100644
index 790ed8cdbd..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/template/ServerMonitorPlugin_template.ts
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright 2021 Hyperledger Cactus Contributors
- * SPDX-License-Identifier: Apache-2.0
- *
- * ServerMonitorPlugin_template.js
- */
-
-/*
- * Summary:
- * Connector: monitoring class of a part dependent on end-chains
- * Used in the case of monitoring continuously.
- * Processing that ends with the acceptance of a single event is handled by a custom function implementation in server plugins.
- * Unlike server plugins, it basically does not handle its own functions.
- */
-
-// configuration file
-const SplugConfig = require("./PluginConfig.js");
-const config = require("config");
-// Log settings
-const log4js = require("log4js");
-const logger = log4js.getLogger("ServerMonitorPlugin[" + process.pid + "]");
-logger.level = config.logLevel;
-// Load libraries, SDKs, etc. according to specifications of endchains as needed
-
-/*
- * ServerMonitorPlugin
- * Class definitions of server monitoring
- */
-const ServerMonitorPlugin = class {
-  /*
-   * constructors
-   */
-  constructor() {
-    // Define dependent specific settings
-  }
-
-  /*
-   * startMonitor
-   * Start Monitoring
-   * @param {string} clientId: Client ID from which monitoring start request was made
-   * @param {function} cb: A callback function that receives monitoring results at any time.
-   */
-  startMonitor(clientId, cb) {
-    logger.info("*** START MONITOR ***");
-    logger.info("Client ID :" + clientId);
-    // Implement handling to receive events from an endchain and return them in a callback function
-  }
-
-  /*
-   * stopMonitor
-   * monitoring stop
-   * @param {string} clientId: Client ID from which monitoring stop request was made
-   */
-  stopMonitor(clientId) {
-    // Implement a process to end EC monitoring
-  }
-}; /* class */
-
-module.exports = ServerMonitorPlugin;
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/template/ServerPlugin_template.ts b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/template/ServerPlugin_template.ts
deleted file mode 100644
index 44e5fca5d2..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/template/ServerPlugin_template.ts
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright 2021 Hyperledger Cactus Contributors
- * SPDX-License-Identifier: Apache-2.0
- *
- * ServerPlugin_template.js
- */
-
-/*
- * Summary:
- * Connector: a part dependent on endchains
- * Define and implement the function according to the connection destination dependent part (ADAPTER) on the core side.
- */
-
-// configuration file
-const SplugConfig = require("./PluginConfig.js");
-const config = require("config");
-// Log settings
-const log4js = require("log4js");
-const logger = log4js.getLogger("ServerPlugin[" + process.pid + "]");
-logger.level = config.logLevel;
-// utility
-const SplugUtil = require("./PluginUtil.js");
-// Load libraries, SDKs, etc. according to specifications of endchains as needed
-
-/*
- * ServerPlugin
- * Class definition for server plugins
- */
-const ServerPlugin = class {
-  /*
-   * constructors
-   */
-  constructor() {
-    // Define dependent specific settings
-  }
-
-  /*
-   * isExistFunction
-   *
-   * @param {String} funcName: The function name to check.
-   *
-   * @return {Boolean} true: Yes./false: does not exist.
-   *
-   * @desc Return if end-chain specific funtion is implemented
-   *       Scope of this function is in this class
-   *       Functions that should not be called directly should be implemented outside this class like utilities.
-   */
-  isExistFunction(funcName) {
-    if (this[funcName] != undefined) {
-      return true;
-    } else {
-      return false;
-    }
-  }
-
-  // Define an arbitrary function and implement it according to specifications of end-chains
-}; /* class */
-
-module.exports = ServerPlugin;
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/template/package_template.json b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/template/package_template.json
deleted file mode 100644
index 289b20b1f1..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/connector/template/package_template.json
+++ /dev/null
@@ -1,7 +0,0 @@
-{
-  "name": "dependent",
-  "version": "0.0.0",
-  "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
-  }
-}
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/index.ts b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/index.ts
deleted file mode 100644
index 87cb558397..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/index.ts
+++ /dev/null
@@ -1 +0,0 @@
-export * from "./public-api";
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/public-api.ts b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/public-api.ts
deleted file mode 100644
index 8018f5172e..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/main/typescript/public-api.ts
+++ /dev/null
@@ -1,2 +0,0 @@
-export { startGoEthereumSocketIOConnector } from "./common/core/bin/www";
-export { shutdown } from "./connector/ServerPlugin";
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/solidity/hello-world-contract/HelloWorld.json b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/solidity/hello-world-contract/HelloWorld.json
deleted file mode 100644
index 29f7eb9fc7..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/solidity/hello-world-contract/HelloWorld.json
+++ /dev/null
@@ -1,418 +0,0 @@
-{
-    "contractName": "HelloWorld",
-    "abi": [
-        {
-            "inputs": [],
-            "name": "getName",
-            "outputs": [
-                {
-                    "internalType": "string",
-                    "name": "",
-                    "type": "string"
-                }
-            ],
-            "stateMutability": "view",
-            "type": "function"
-        },
-        {
-            "inputs": [],
-            "name": "sayHello",
-            "outputs": [
-                {
-                    "internalType": "string",
-                    "name": "",
-                    "type": "string"
-                }
-            ],
-            "stateMutability": "pure",
-            "type": "function"
-        },
-        {
-            "inputs": [
-                {
-                    "internalType": "string",
-                    "name": "newName",
-                    "type": "string"
-                }
-            ],
-            "name": "setName",
-            "outputs": [],
-            "stateMutability": "nonpayable",
-            "type": "function"
-        }
-    ],
-    "metadata": "{\"compiler\":{\"version\":\"0.7.2+commit.51b20bc0\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[],\"name\":\"getName\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"sayHello\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"pure\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"string\",\"name\":\"newName\",\"type\":\"string\"}],\"name\":\"setName\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}],\"devdoc\":{\"kind\":\"dev\",\"methods\":{},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"/home/peter/a/blockchain/blockchain-integration-framework/packages/cactus-test-plugin-ledger-connector-quorum/src/test/solidity/hello-world-contract/HelloWorld.sol\":\"HelloWorld\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"/home/peter/a/blockchain/blockchain-integration-framework/packages/cactus-test-plugin-ledger-connector-quorum/src/test/solidity/hello-world-contract/HelloWorld.sol\":{\"keccak256\":\"0x0b78fa11f33f7936a80da194c49f04198e38947e3f98f3a7b765b4adb4c455c1\",\"urls\":[\"bzz-raw://12697aa12341c70ed7a411a27a17398dcb2d4336a14dac51845e2123acf174c7\",\"dweb:/ipfs/QmPhH1UbHtUeeen9W2qMDwEVVWAtVJSMN29Nch5q8Gax1D\"]}},\"version\":1}",
-    "bytecode": "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",
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-    "sourcePath": "/home/peter/a/blockchain/blockchain-integration-framework/packages/cactus-test-plugin-ledger-connector-quorum/src/test/solidity/hello-world-contract/HelloWorld.sol",
-    "compiler": {
-        "name": "solc",
-        "version": "0.7.2+commit.51b20bc0"
-    },
-    "networks":{},
-    "ast": {
-        "absolutePath": "/home/peter/a/blockchain/blockchain-integration-framework/packages/cactus-test-plugin-ledger-connector-quorum/src/test/solidity/hello-world-contract/HelloWorld.sol",
-        "exportedSymbols": {
-            "HelloWorld": [
-                31
-            ]
-        },
-        "id": 32,
-        "nodeType": "SourceUnit",
-        "nodes": [
-            {
-                "id": 1,
-                "literals": [
-                    "solidity",
-                    ">=",
-                    "0.7",
-                    ".0"
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-                "src": "413:24:0"
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-                        "storageLocation": "default",
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-                            "typeIdentifier": "t_string_storage",
-                            "typeString": "string"
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-                        "typeName": {
-                            "id": 2,
-                            "name": "string",
-                            "nodeType": "ElementaryTypeName",
-                            "src": "463:6:0",
-                            "typeDescriptions": {
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-                        },
-                        "value": {
-                            "hexValue": "4361707461696e436163747573",
-                            "id": 3,
-                            "isConstant": false,
-                            "isLValue": false,
-                            "isPure": true,
-                            "kind": "string",
-                            "lValueRequested": false,
-                            "nodeType": "Literal",
-                            "src": "485:15:0",
-                            "typeDescriptions": {
-                                "typeIdentifier": "t_stringliteral_bdd2f21877c99489ddcc32737686677f40d460368c7982ce22ce4f72b41b0312",
-                                "typeString": "literal_string \"CaptainCactus\""
-                            },
-                            "value": "CaptainCactus"
-                        },
-                        "visibility": "private"
-                    },
-                    {
-                        "body": {
-                            "id": 11,
-                            "nodeType": "Block",
-                            "src": "562:32:0",
-                            "statements": [
-                                {
-                                    "expression": {
-                                        "hexValue": "48656c6c6f20576f726c6421",
-                                        "id": 9,
-                                        "isConstant": false,
-                                        "isLValue": false,
-                                        "isPure": true,
-                                        "kind": "string",
-                                        "lValueRequested": false,
-                                        "nodeType": "Literal",
-                                        "src": "575:14:0",
-                                        "typeDescriptions": {
-                                            "typeIdentifier": "t_stringliteral_3ea2f1d0abf3fc66cf29eebb70cbd4e7fe762ef8a09bcc06c8edf641230afec0",
-                                            "typeString": "literal_string \"Hello World!\""
-                                        },
-                                        "value": "Hello World!"
-                                    },
-                                    "functionReturnParameters": 8,
-                                    "id": 10,
-                                    "nodeType": "Return",
-                                    "src": "568:21:0"
-                                }
-                            ]
-                        },
-                        "functionSelector": "ef5fb05b",
-                        "id": 12,
-                        "implemented": true,
-                        "kind": "function",
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-                        "name": "sayHello",
-                        "nodeType": "FunctionDefinition",
-                        "parameters": {
-                            "id": 5,
-                            "nodeType": "ParameterList",
-                            "parameters": [],
-                            "src": "523:2:0"
-                        },
-                        "returnParameters": {
-                            "id": 8,
-                            "nodeType": "ParameterList",
-                            "parameters": [
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-                                    "constant": false,
-                                    "id": 7,
-                                    "mutability": "mutable",
-                                    "name": "",
-                                    "nodeType": "VariableDeclaration",
-                                    "scope": 12,
-                                    "src": "547:13:0",
-                                    "stateVariable": false,
-                                    "storageLocation": "memory",
-                                    "typeDescriptions": {
-                                        "typeIdentifier": "t_string_memory_ptr",
-                                        "typeString": "string"
-                                    },
-                                    "typeName": {
-                                        "id": 6,
-                                        "name": "string",
-                                        "nodeType": "ElementaryTypeName",
-                                        "src": "547:6:0",
-                                        "typeDescriptions": {
-                                            "typeIdentifier": "t_string_storage_ptr",
-                                            "typeString": "string"
-                                        }
-                                    },
-                                    "visibility": "internal"
-                                }
-                            ],
-                            "src": "546:15:0"
-                        },
-                        "scope": 31,
-                        "src": "505:89:0",
-                        "stateMutability": "pure",
-                        "virtual": false,
-                        "visibility": "public"
-                    },
-                    {
-                        "body": {
-                            "id": 19,
-                            "nodeType": "Block",
-                            "src": "655:24:0",
-                            "statements": [
-                                {
-                                    "expression": {
-                                        "id": 17,
-                                        "name": "name",
-                                        "nodeType": "Identifier",
-                                        "overloadedDeclarations": [],
-                                        "referencedDeclaration": 4,
-                                        "src": "670:4:0",
-                                        "typeDescriptions": {
-                                            "typeIdentifier": "t_string_storage",
-                                            "typeString": "string storage ref"
-                                        }
-                                    },
-                                    "functionReturnParameters": 16,
-                                    "id": 18,
-                                    "nodeType": "Return",
-                                    "src": "663:11:0"
-                                }
-                            ]
-                        },
-                        "functionSelector": "17d7de7c",
-                        "id": 20,
-                        "implemented": true,
-                        "kind": "function",
-                        "modifiers": [],
-                        "name": "getName",
-                        "nodeType": "FunctionDefinition",
-                        "parameters": {
-                            "id": 13,
-                            "nodeType": "ParameterList",
-                            "parameters": [],
-                            "src": "614:2:0"
-                        },
-                        "returnParameters": {
-                            "id": 16,
-                            "nodeType": "ParameterList",
-                            "parameters": [
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-                                    "id": 15,
-                                    "mutability": "mutable",
-                                    "name": "",
-                                    "nodeType": "VariableDeclaration",
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-                                    "src": "638:13:0",
-                                    "stateVariable": false,
-                                    "storageLocation": "memory",
-                                    "typeDescriptions": {
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-                                        "typeString": "string"
-                                    },
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-                                        "src": "638:6:0",
-                                        "typeDescriptions": {
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-                                            "typeString": "string"
-                                        }
-                                    },
-                                    "visibility": "internal"
-                                }
-                            ],
-                            "src": "637:15:0"
-                        },
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-                        "src": "598:81:0",
-                        "stateMutability": "view",
-                        "virtual": false,
-                        "visibility": "public"
-                    },
-                    {
-                        "body": {
-                            "id": 29,
-                            "nodeType": "Block",
-                            "src": "732:27:0",
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-                                            "name": "name",
-                                            "nodeType": "Identifier",
-                                            "overloadedDeclarations": [],
-                                            "referencedDeclaration": 4,
-                                            "src": "740:4:0",
-                                            "typeDescriptions": {
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-                                                "typeString": "string storage ref"
-                                            }
-                                        },
-                                        "nodeType": "Assignment",
-                                        "operator": "=",
-                                        "rightHandSide": {
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-                                            "name": "newName",
-                                            "nodeType": "Identifier",
-                                            "overloadedDeclarations": [],
-                                            "referencedDeclaration": 22,
-                                            "src": "747:7:0",
-                                            "typeDescriptions": {
-                                                "typeIdentifier": "t_string_memory_ptr",
-                                                "typeString": "string memory"
-                                            }
-                                        },
-                                        "src": "740:14:0",
-                                        "typeDescriptions": {
-                                            "typeIdentifier": "t_string_storage",
-                                            "typeString": "string storage ref"
-                                        }
-                                    },
-                                    "id": 28,
-                                    "nodeType": "ExpressionStatement",
-                                    "src": "740:14:0"
-                                }
-                            ]
-                        },
-                        "functionSelector": "c47f0027",
-                        "id": 30,
-                        "implemented": true,
-                        "kind": "function",
-                        "modifiers": [],
-                        "name": "setName",
-                        "nodeType": "FunctionDefinition",
-                        "parameters": {
-                            "id": 23,
-                            "nodeType": "ParameterList",
-                            "parameters": [
-                                {
-                                    "constant": false,
-                                    "id": 22,
-                                    "mutability": "mutable",
-                                    "name": "newName",
-                                    "nodeType": "VariableDeclaration",
-                                    "scope": 30,
-                                    "src": "700:21:0",
-                                    "stateVariable": false,
-                                    "storageLocation": "memory",
-                                    "typeDescriptions": {
-                                        "typeIdentifier": "t_string_memory_ptr",
-                                        "typeString": "string"
-                                    },
-                                    "typeName": {
-                                        "id": 21,
-                                        "name": "string",
-                                        "nodeType": "ElementaryTypeName",
-                                        "src": "700:6:0",
-                                        "typeDescriptions": {
-                                            "typeIdentifier": "t_string_storage_ptr",
-                                            "typeString": "string"
-                                        }
-                                    },
-                                    "visibility": "internal"
-                                }
-                            ],
-                            "src": "699:23:0"
-                        },
-                        "returnParameters": {
-                            "id": 24,
-                            "nodeType": "ParameterList",
-                            "parameters": [],
-                            "src": "732:0:0"
-                        },
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-                        "src": "683:76:0",
-                        "stateMutability": "nonpayable",
-                        "virtual": false,
-                        "visibility": "public"
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-                "src": "439:322:0"
-            }
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-        "src": "413:349:0"
-    },
-    "functionHashes": {
-        "getName()": "17d7de7c",
-        "sayHello()": "ef5fb05b",
-        "setName(string)": "c47f0027"
-    },
-    "gasEstimates": {
-        "creation": {
-            "codeDepositCost": "156600",
-            "executionCost": "infinite",
-            "totalCost": "infinite"
-        },
-        "external": {
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-            "sayHello()": "infinite",
-            "setName(string)": "infinite"
-        }
-    }
-}
\ No newline at end of file
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/solidity/hello-world-contract/HelloWorld.sol b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/solidity/hello-world-contract/HelloWorld.sol
deleted file mode 100644
index befd843936..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/solidity/hello-world-contract/HelloWorld.sol
+++ /dev/null
@@ -1,26 +0,0 @@
-// *****************************************************************************
-// IMPORTANT: If you update this code then make sure to recompile
-// it and update the .json file as well so that they
-// remain in sync for consistent test executions.
-// With that said, there shouldn't be any reason to recompile this, like ever...
-// *****************************************************************************
-
-pragma solidity >=0.7.0;
-
-contract HelloWorld {
-  string private name = "CaptainCactus";
-
-  function sayHello () public pure returns (string memory) {
-    return 'Hello World!';
-  }
-
-  function getName() public view returns (string memory)
-  {
-      return name;
-  }
-
-  function setName(string memory newName) public
-  {
-      name = newName;
-  }
-}
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/integration/go-ethereum-socketio-connector.test.ts b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/integration/go-ethereum-socketio-connector.test.ts
deleted file mode 100644
index 89f4210542..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/integration/go-ethereum-socketio-connector.test.ts
+++ /dev/null
@@ -1,530 +0,0 @@
-/**
- * Functional test of basic operations on go-ethereum validator (packages/cactus-plugin-ledger-connector-go-ethereum-socketio).
- */
-
-//////////////////////////////////
-// Constants
-//////////////////////////////////
-
-const testLogLevel: LogLevelDesc = "info";
-const sutLogLevel: LogLevelDesc = "info";
-const testTimeout = 1000 * 60; // 1 minute timeout for some tests
-const setupTimeout = 1000 * 60; // 1 minute timeout for setup
-
-// Ledger settings
-const imageName = "openethereum/openethereum";
-const imageVersion = "v3.3.5";
-
-// ApiClient settings
-const syncReqTimeout = 1000 * 10; // 10 seconds
-
-import {
-  OpenEthereumTestLedger,
-  pruneDockerAllIfGithubAction,
-  SelfSignedPkiGenerator,
-} from "@hyperledger/cactus-test-tooling";
-
-import {
-  LogLevelDesc,
-  LoggerProvider,
-  Logger,
-} from "@hyperledger/cactus-common";
-
-import { SocketIOApiClient } from "@hyperledger/cactus-api-client";
-
-import HelloWorldContractJson from "../../solidity/hello-world-contract/HelloWorld.json";
-
-import "jest-extended";
-import { Server as HttpsServer } from "https";
-import { Account } from "web3-core";
-
-import Web3 from "web3";
-
-// Logger setup
-const log: Logger = LoggerProvider.getOrCreate({
-  label: "go-ethereum-socketio-connector.test",
-  level: testLogLevel,
-});
-
-describe("Go-Ethereum-SocketIO connector tests", () => {
-  let ledger: OpenEthereumTestLedger;
-  let web3: Web3;
-  let contractAddress: string;
-  let connectorCertValue: string;
-  let connectorPrivKeyValue: string;
-  let connectorServer: HttpsServer;
-  let apiClient: SocketIOApiClient;
-  let constTestAcc: Account;
-  let connectorModule: any;
-  const constTestAccBalance = 5 * 1000000;
-
-  //////////////////////////////////
-  // Environment Setup
-  //////////////////////////////////
-
-  async function deploySmartContract(): Promise<{
-    contractAddress: string;
-    blockNumber: number;
-  }> {
-    const txReceipt = await ledger.deployContract(
-      HelloWorldContractJson.abi as any,
-      "0x" + HelloWorldContractJson.bytecode,
-    );
-    expect(txReceipt.contractAddress).toBeTruthy();
-    expect(txReceipt.status).toBeTrue();
-    expect(txReceipt.blockHash).toBeTruthy();
-    expect(txReceipt.blockNumber).toBeGreaterThan(1);
-    log.debug(
-      "Deployed test smart contract, TX on block number",
-      txReceipt.blockNumber,
-    );
-
-    return {
-      contractAddress: txReceipt.contractAddress ?? "",
-      blockNumber: txReceipt.blockNumber,
-    };
-  }
-
-  beforeAll(async () => {
-    log.info("Prune Docker...");
-    await pruneDockerAllIfGithubAction({ logLevel: testLogLevel });
-
-    log.info(`Start Ledger ${imageName}:${imageVersion}...`);
-    ledger = new OpenEthereumTestLedger({
-      imageName,
-      imageVersion,
-      emitContainerLogs: true,
-      logLevel: sutLogLevel,
-    });
-    await ledger.start();
-    const ledgerRpcUrl = await ledger.getRpcApiWebSocketHost();
-    log.info(`Ledger started, RPC: ${ledgerRpcUrl}`);
-
-    // Create Test Account
-    constTestAcc = await ledger.createEthTestAccount(constTestAccBalance);
-
-    // Create separate Web3 provider
-    web3 = new Web3(ledgerRpcUrl);
-
-    // Deploy test smart contract
-    const deployOutput = await deploySmartContract();
-    contractAddress = deployOutput.contractAddress;
-
-    // Generate connector private key and certificate
-    const pkiGenerator = new SelfSignedPkiGenerator();
-    const pki = pkiGenerator.create("127.0.0.1");
-    connectorPrivKeyValue = pki.privateKeyPem;
-    connectorCertValue = pki.certificatePem;
-    const jwtAlgo = "RS512";
-
-    const connectorConfig: any = {
-      sslParam: {
-        port: 0, // random port
-        keyValue: connectorPrivKeyValue,
-        certValue: connectorCertValue,
-        jwtAlgo: jwtAlgo,
-      },
-      logLevel: sutLogLevel,
-      ledgerUrl: ledgerRpcUrl,
-    };
-    const configJson = JSON.stringify(connectorConfig);
-    log.debug("Connector Config:", configJson);
-
-    log.info("Export connector config before loading the module...");
-    process.env["NODE_CONFIG"] = configJson;
-
-    // Load connector module
-    connectorModule = await import("../../../main/typescript/index");
-
-    // Run the connector
-    connectorServer = await connectorModule.startGoEthereumSocketIOConnector();
-    expect(connectorServer).toBeTruthy();
-    const connectorAddress = connectorServer.address();
-    if (!connectorAddress || typeof connectorAddress === "string") {
-      throw new Error("Unexpected go-ethereum connector AddressInfo type");
-    }
-    log.info(
-      "Go-Ethereum-SocketIO Connector started on:",
-      `${connectorAddress.address}:${connectorAddress.port}`,
-    );
-
-    // Create ApiClient instance
-    const apiConfigOptions = {
-      validatorID: "go-eth-socketio-test",
-      validatorURL: `https://127.0.0.1:${connectorAddress.port}`,
-      validatorKeyValue: connectorCertValue,
-      logLevel: sutLogLevel,
-      maxCounterRequestID: 1000,
-      syncFunctionTimeoutMillisecond: syncReqTimeout,
-      socketOptions: {
-        rejectUnauthorized: false,
-        reconnection: false,
-        timeout: syncReqTimeout * 2,
-      },
-    };
-    log.debug("ApiClient config:", apiConfigOptions);
-    apiClient = new SocketIOApiClient(apiConfigOptions);
-  }, setupTimeout);
-
-  afterAll(async () => {
-    log.info("FINISHING THE TESTS");
-
-    if (connectorModule) {
-      connectorModule.shutdown();
-    }
-
-    if (apiClient) {
-      log.info("Close ApiClient connection...");
-      apiClient.close();
-    }
-
-    if (connectorServer) {
-      log.info("Stop the fabric connector...");
-      await new Promise<void>((resolve) =>
-        connectorServer.close(() => resolve()),
-      );
-    }
-
-    if (ledger) {
-      log.info("Stop the ethereum ledger...");
-      await ledger.stop();
-      await ledger.destroy();
-    }
-
-    // SocketIOApiClient has timeout running for each request which is not cancellable at the moment.
-    // Wait timeout amount of seconds to make sure all handles are closed.
-    await new Promise((resolve) => setTimeout(resolve, syncReqTimeout));
-
-    log.info("Prune Docker...");
-    await pruneDockerAllIfGithubAction({ logLevel: testLogLevel });
-  }, setupTimeout);
-
-  //////////////////////////////////
-  // Tests
-  //////////////////////////////////
-
-  /**
-   * Simple test to see if test ethereum ledger is running correctly.
-   * Doesn't use apiClient or validator.
-   */
-  test("Sanity check ledger connection", async () => {
-    const balance = await web3.eth.getBalance(constTestAcc.address);
-    expect(balance).toBeTruthy();
-    expect(balance).toEqual(constTestAccBalance.toString());
-  });
-
-  test("getBlock returns valid block data for different methods", async () => {
-    const getBlock = async (param: string | number) => {
-      const method = { type: "function", command: "getBlock" };
-      const args = { args: [param] };
-      const response = await apiClient.sendSyncRequest({}, method, args);
-      expect(response).toBeTruthy();
-      return response;
-    };
-
-    const latestBlock = await getBlock("latest");
-    expect(latestBlock.status).toEqual(200);
-    const { data: blockDataByHash } = await getBlock(
-      latestBlock.data.blockData.hash,
-    );
-    expect(blockDataByHash.blockData.hash).toEqual(
-      latestBlock.data.blockData.hash,
-    );
-    const { data: blockDataByNumber } = await getBlock(
-      latestBlock.data.blockData.number,
-    );
-    expect(blockDataByNumber.blockData.hash).toEqual(
-      blockDataByHash.blockData.hash,
-    );
-
-    // Assert transaction data is not returned
-    const { blockNumber } = await deploySmartContract();
-    const blockWithTx = await getBlock(blockNumber);
-    const firstTx = blockWithTx.data.blockData.transactions[0];
-    expect(firstTx).toBeTruthy();
-    // Only string hashes are returned when flag is false
-    expect(typeof firstTx).toEqual("string");
-  });
-
-  test("getBlock returns transaction data when requested", async () => {
-    const method = { type: "function", command: "getBlock" };
-    const { blockNumber } = await deploySmartContract();
-    const args = { args: [blockNumber, true] };
-
-    const response = await apiClient.sendSyncRequest({}, method, args);
-
-    // Assert correct response
-    expect(response).toBeTruthy();
-    expect(response.status).toEqual(200);
-
-    // Assert valid block data
-    const block = response.data.blockData;
-    expect(block).toBeTruthy();
-    expect(block.hash).toBeTruthy();
-
-    // Assert transaction data was returned as requested
-    expect(block.transactions.length).toBeGreaterThan(0);
-    const firstTx = block.transactions[0];
-    expect(firstTx).toBeTruthy();
-    expect(firstTx.hash).toBeTruthy();
-  });
-
-  test("Function getTransactionReceipt returns transaction receipt of given transaction", async () => {
-    async function getTransactionHash() {
-      const fromAccInitBalance = 1500;
-      const toAccInitBalance = 1500;
-      const transferAmount = 500;
-      //creating two accounts to perform transaction on them
-      const fromAddress = await ledger.createEthTestAccount(fromAccInitBalance);
-      const toAcc = await ledger.createEthTestAccount(toAccInitBalance);
-      // adding account using a private key to the wallet
-      web3.eth.accounts.wallet.add(fromAddress.privateKey);
-
-      const signedTx = await fromAddress.signTransaction({
-        from: fromAddress.address,
-        to: toAcc.address,
-        value: transferAmount,
-        gas: 1000000,
-      });
-      const method = { type: "function", command: "sendRawTransaction" };
-      const args = { args: [{ serializedTx: signedTx.rawTransaction }] };
-      // transfering funds to trigger transaction
-      const response = await apiClient.sendSyncRequest({}, method, args);
-      // returning only transaction hash
-      return response.data.txid;
-    }
-
-    const transactionHash = await getTransactionHash();
-    const method = { type: "function", command: "getTransactionReceipt" };
-    const args = { args: [transactionHash] };
-
-    const response = await apiClient.sendSyncRequest({}, method, args);
-    expect(response).toBeTruthy();
-    expect(response.status).toEqual(200);
-    expect(response.data.txReceipt.transactionHash).toEqual(transactionHash);
-  });
-
-  /**
-   * Test ServerPlugin getNumericBalance function.
-   */
-  test("Function getNumericBalance returns const account balance", async () => {
-    const method = { type: "function", command: "getNumericBalance" };
-    const argsParam = {
-      args: [constTestAcc.address],
-    };
-
-    const response = await apiClient.sendSyncRequest({}, method, argsParam);
-
-    expect(response).toBeTruthy();
-    expect(response.status).toEqual(200);
-    expect(response.amount).toEqual(constTestAccBalance);
-  });
-
-  /**
-   * Test ServerPlugin transferNumericAsset function.
-   * @deprecated - Not usable, can't unlock account remotely at the moment.
-   */
-  test.skip("Function transferNumericAsset transfers asset between two accounts", async () => {
-    // Setup Accounts
-    const fromAccInitBalance = 1000;
-    const toAccInitBalance = 1000;
-    const transferAmount = 500;
-    const fromAcc = await ledger.createEthTestAccount(fromAccInitBalance);
-    const toAcc = await ledger.createEthTestAccount(toAccInitBalance);
-
-    const method = { type: "function", command: "transferNumericAsset" };
-    const argsParam = {
-      args: [
-        {
-          fromAddress: fromAcc.address,
-          toAddress: toAcc.address,
-          amount: transferAmount,
-        },
-      ],
-    };
-
-    const response = await apiClient.sendSyncRequest({}, method, argsParam);
-
-    expect(response).toBeTruthy();
-  });
-
-  /**
-   * Test ServerPlugin getNonce function.
-   */
-  test("Function getNonce returns const account nonce which should be 0", async () => {
-    const method = { type: "function", command: "getNonce" };
-    const args = { args: { args: [constTestAcc.address] } };
-
-    const response = await apiClient.sendSyncRequest({}, method, args);
-
-    expect(response).toBeTruthy();
-    expect(response.status).toEqual(200);
-    expect(response.data).toBeTruthy();
-    expect(response.data.nonce).toEqual(0);
-    expect(response.data.nonceHex).toEqual("0x0");
-  });
-
-  /**
-   * Test ServerPlugin toHex function.
-   */
-  test("Function toHex returns converted value", async () => {
-    const value = 7365235;
-    const method = { type: "function", command: "toHex" };
-    const args = { args: { args: [value] } };
-
-    const response = await apiClient.sendSyncRequest({}, method, args);
-
-    expect(response).toBeTruthy();
-    expect(response.status).toEqual(200);
-    expect(response.data).toBeTruthy();
-    expect(response.data.hexStr).toEqual("0x" + value.toString(16));
-  });
-
-  /**
-   * Test ServerPlugin sendRawTransaction function.
-   */
-  test("Function sendRawTransaction registers new transfer transaction", async () => {
-    // Setup Accounts
-    const fromAccInitBalance = 1000;
-    const toAccInitBalance = 1000;
-    const transferAmount = 500;
-    const fromAcc = await ledger.createEthTestAccount(fromAccInitBalance);
-    const toAcc = await ledger.createEthTestAccount(toAccInitBalance);
-
-    const signedTx = await fromAcc.signTransaction({
-      from: fromAcc.address,
-      to: toAcc.address,
-      value: transferAmount,
-      gas: 1000000,
-    });
-    expect(signedTx).toBeTruthy();
-
-    const method = { type: "function", command: "sendRawTransaction" };
-    const args = { args: [{ serializedTx: signedTx.rawTransaction }] };
-
-    const response = await apiClient.sendSyncRequest({}, method, args);
-
-    expect(response).toBeTruthy();
-    expect(response.status).toEqual(200);
-    expect(response.data).toBeTruthy();
-    expect(response.data.txid.length).toBeGreaterThan(0);
-    expect(response.data.txid).toStartWith("0x");
-  });
-
-  /**
-   * Test ServerPlugin web3Eth function.
-   */
-  test("Function web3Eth returns results of web3.eth.getBalance", async () => {
-    const method = { type: "web3Eth", command: "getBalance" };
-    const args = { args: [constTestAcc.address] };
-
-    const response = await apiClient.sendSyncRequest({}, method, args);
-
-    expect(response).toBeTruthy();
-    expect(response.status).toEqual(200);
-    expect(response.data).toBeTruthy();
-    expect(response.data).toEqual(constTestAccBalance.toString());
-  });
-
-  /**
-   * Test ServerPlugin web3Eth method checking.
-   */
-  test("Function web3Eth returns error for non existant function", async () => {
-    const method = { type: "web3Eth", command: "foo" };
-    const args = {};
-
-    const response = await apiClient.sendSyncRequest({}, method, args);
-
-    expect(response).toBeTruthy();
-    expect(response.status).toEqual(504);
-    expect(response.errorDetail).toBeTruthy();
-  });
-
-  /**
-   * Test ServerPlugin contract function.
-   */
-  test("Calling pure smart contract method works", async () => {
-    const contract = {
-      abi: HelloWorldContractJson.abi,
-      address: contractAddress,
-    };
-    const method = { type: "contract", command: "sayHello", function: "call" };
-    const args = { args: [] };
-
-    const response = await apiClient.sendSyncRequest(contract, method, args);
-
-    expect(response).toBeTruthy();
-    expect(response.status).toEqual(200);
-    expect(response.data).toBeTruthy();
-    expect(response.data).toEqual("Hello World!");
-  });
-
-  /**
-   * Test ServerPlugin contract method checking.
-   */
-  test("Calling contract returns error for non existant contract method", async () => {
-    const contract = {
-      abi: HelloWorldContractJson.abi,
-      address: contractAddress,
-    };
-    const method = { type: "contract", command: "foo", function: "call" };
-    const args = { args: [] };
-
-    const response = await apiClient.sendSyncRequest(contract, method, args);
-
-    expect(response).toBeTruthy();
-    expect(response.status).toEqual(504);
-    expect(response.errorDetail).toBeTruthy();
-  });
-
-  /**
-   * Test ServerMonitorPlugin startMonitor/stopMonitor functions.
-   */
-  test(
-    "Monitoring returns new block",
-    async () => {
-      // Create monitoring promise and subscription
-      let monitorSub: any;
-      const newBlockPromise = new Promise<any>((resolve, reject) => {
-        monitorSub = apiClient.watchBlocksV1().subscribe({
-          next: (block) => resolve(block),
-          error: (err) => reject(err),
-          complete: () =>
-            reject("Unexpected watchBlocksV1 completion - reject."),
-        });
-      });
-
-      try {
-        // Repeat deploySmartContract until block was received
-        while (true) {
-          const deployPromise = deploySmartContract();
-          const resolvedValue = await Promise.race([
-            newBlockPromise,
-            deployPromise,
-          ]);
-          log.debug("Monitor: resolvedValue", resolvedValue);
-          if (resolvedValue && resolvedValue.blockData) {
-            log.info("Resolved watchBlock promise");
-            expect(resolvedValue.status).toEqual(200);
-            expect(resolvedValue.blockData.number).toBeGreaterThan(1);
-            expect(resolvedValue.blockData.transactions.length).toBeGreaterThan(
-              0,
-            );
-            break;
-          }
-          // Sleep 1 second and try again
-          await new Promise((resolve) => setTimeout(resolve, 1000));
-        }
-      } catch (error) {
-        throw error;
-      } finally {
-        if (monitorSub) {
-          monitorSub.unsubscribe();
-        } else {
-          log.warn("monitorSub was not valid, could not unsubscribe");
-        }
-      }
-    },
-    testTimeout,
-  );
-});
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/.gitignore b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/.gitignore
deleted file mode 100644
index b8ffe08f2c..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-node_modules/
-package-lock.json
-
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/README.md b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/README.md
deleted file mode 100644
index 05c3a99607..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/README.md
+++ /dev/null
@@ -1,58 +0,0 @@
-<!--
- Copyright 2021 Hyperledger Cactus Contributors
- SPDX-License-Identifier: Apache-2.0
-
- README.md
--->
-# BIF-trial(Validator Driver)
-
-## Assumption
-- Validator1 (for Ethereum) is running
-- geth1(geth-docker) is running
-- Specify the validator URL to connect to with "validatorUrl" in "config/default.js"
-
-## a) Get balance
-### Target source: validatorDriver_getNumericBalance.js
-
-1) Specify the parameters in the target source
-
- - referedAddress: Account ID to be displayed
-
-2) Run
-<pre>
-node validatorDriver_getNumericBalance.js 
-</pre>
-
-## b) Asset transfer
-### Target source: validatorDriver_transferNumericAsset.js
-
-1) Specify the parameters in the target source
-
- - fromAddress: Transfer source account ID 
- - toAddress: Destination account ID
- - amount: the value of the asset to be transferred
-
-2) Run
-<pre>
-node validatorDriver_transferNumericAsset.js 
-</pre>
-
-## c) Raw Transaction execution (Asset transfer)
-### Target source: validatorDriver_sendRawTransaction.js
-
-1) Specify the parameters in the target source
-
- - fromAddress: Transfer source account ID 
- - fromAddressPkey: private key of Transfer source account 
- - toAddress: Destination account ID
- - amount: the value of the asset to be transferred
-
-2) Run
-<pre>
-node validatorDriver_sendRawTransaction.js 
-</pre>
-
-
-**NOTE**
-
-* You can check the balance with "validatorDriver_getNumericBalance.js".
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/config/default.js b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/config/default.js
deleted file mode 100644
index 2827d3391c..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/config/default.js
+++ /dev/null
@@ -1,17 +0,0 @@
-/*
- * Copyright 2021 Hyperledger Cactus Contributors
- * SPDX-License-Identifier: Apache-2.0
- *
- * default.js
- */
-
-module.exports = {
-  // URL to validator
-  validatorUrl: "https://localhost:5050",
-  gethUrl: "http://localhost:8545",
-
-  // forCustomChain
-  chainName: "geth1",
-  networkId: 10,
-  chainId: 10,
-};
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/copyStaticAssets.ts b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/copyStaticAssets.ts
deleted file mode 100644
index 5e87cb8a10..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/copyStaticAssets.ts
+++ /dev/null
@@ -1,8 +0,0 @@
-/*
- * Copyright 2020-2021 Hyperledger Cactus Contributors
- * SPDX-License-Identifier: Apache-2.0
- *
- * copyStaticAssets.ts
- */
-import * as shell from "shelljs";
-shell.cp("config/default.js", "./dist/config");
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/.gitignore b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/.gitignore
deleted file mode 100644
index 53a9595130..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/.gitignore
+++ /dev/null
@@ -1,5 +0,0 @@
-data-ec1
-data-ec2
-genesis/genesis-ec1.json
-genesis/genesis-ec2.json
-
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/README.md b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/README.md
deleted file mode 100644
index 0ea91daa10..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/README.md
+++ /dev/null
@@ -1,102 +0,0 @@
-<!--
- Copyright 2021 Hyperledger Cactus Contributors
- SPDX-License-Identifier: Apache-2.0
-
- README.md
--->
-# BIF-trial(geth-docker)
-
-## Explanation
-- "geth-docker" is a module required to run "Validator"
-- Immediately after applying -geth-docker, it is necessary to perform "a) initialization"
-- How to start/stop will be explained follow
-
-## a) Initialization
-### 1) Account creation
-<pre>
-./init-account.sh
-</pre>
-
-Please keep in your memo the addresses (ec1-accounts[0],[1],..,[4] and ec2-accounts[0],[1],..,[4]),
-
-* Sample output
-<pre>
- make-account-ec1-accounts[0]
- Creating network "ecenv_default" with the default driver
- INFO [05-29|08:33:35.658] Maximum peer count                       ETH=25 LES=0 total=25
- Address: {782646267c64d536983a64af9d9a5ab80e036989}
- 
- make-account-ec1-accounts[1]
- INFO [05-29|08:33:42.143] Maximum peer count                       ETH=25 LES=0 total=25
- Address: {38f6d41b35d1af26865a0c13d41e8aa342e62e61}
- 
- make-account-ec1-accounts[2]
- INFO [05-29|08:33:48.534] Maximum peer count                       ETH=25 LES=0 total=25
- Address: {895b383457a714e051357dfc36bb3b6ddf84f01f}
- 
- make-account-ec1-accounts[3]
- INFO [05-29|08:33:54.731] Maximum peer count                       ETH=25 LES=0 total=25
- Address: {caf99b30857e0d29cd866e27fb39b2e7d2b2dc17}
- 
- make-account-ec1-accounts[4]
- INFO [05-29|08:34:01.282] Maximum peer count                       ETH=25 LES=0 total=25
- Address: {1b75166f65a852216306af320783e4b22986d3e3}
- 
- make-account-ec2-accounts[0]
- INFO [05-29|08:34:08.021] Maximum peer count                       ETH=25 LES=0 total=25
- Address: {8f2244f75a4c53684c5827ec19615dc89c2ad21c}
- 
- make-account-ec2-accounts[1]
- INFO [05-29|08:34:14.414] Maximum peer count                       ETH=25 LES=0 total=25
- Address: {add19019ee1ea604b3fcb55a11b97d0fc81cc221}
- 
- make-account-ec2-accounts[2]
- INFO [05-29|08:34:21.292] Maximum peer count                       ETH=25 LES=0 total=25
- Address: {ab66982e4eb732f0e17c56586e530f94ee9411ce}
- 
- make-account-ec2-accounts[3]
- INFO [05-29|08:34:27.947] Maximum peer count                       ETH=25 LES=0 total=25
- Address: {4809b6329ef15bcd1b5b730e0f148ae751cfd9f6}
- 
- make-account-ec2-accounts[4]
- INFO [05-29|08:34:34.360] Maximum peer count                       ETH=25 LES=0 total=25
- Address: {421c9db39b64575c511f94990acfd4394dd5f1c3}
-</pre>
-
-### 2) Editing initial block information
-* Change the "ADDRESS" in genesis/genesis-ec1.json(and genesis-ec2.json) to the address for ec1-accounts[0].
-
- * Specify ec1-accounts [0] account for "genesis / genesis-ec1.json"
- * Specify ec2-accounts [0] account for "genesis / genesis-ec2.json"
-
-* Sample output
-
-<pre>
- "alloc"      : {
-    "ADDRESS":
-    {"balance":"100000000000000000000000000"}
- },
-                  |
-                  v
- "alloc"      : {
-    "782646267c64d536983a64af9d9a5ab80e036989":
-    {"balance":"100000000000000000000000000"}
- },
-</pre>
-
-### 3) Initializing end-chains:
-<pre>
-./init-chain.sh
-</pre>
-
-## b) Launching geth-containers
-<pre>
-./up.sh
-</pre>
-
-
-## c) Stop geth-containers
-<pre>
-./down.sh
-</pre>
-
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/delete.sh b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/delete.sh
deleted file mode 100644
index 6d788a6b91..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/delete.sh
+++ /dev/null
@@ -1,7 +0,0 @@
-# Copyright 2021 Hyperledger Cactus Contributors
-# SPDX-License-Identifier: Apache-2.0
-docker-compose -f docker-init.yml down
-docker-compose down 
-sudo rm -r ./data*
-docker network rm ec1net
-docker network rm ec2net
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/docker-compose.yml b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/docker-compose.yml
deleted file mode 100644
index adbe0bf0e5..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/docker-compose.yml
+++ /dev/null
@@ -1,77 +0,0 @@
-# Copyright 2021 Hyperledger Cactus Contributors
-# SPDX-License-Identifier: Apache-2.0
-version: '3'
-services:
-  geth1:
-    container_name: geth1
-    image: ethereum/client-go:v1.8.27
-    volumes:
-      - "$PWD/data-ec1:/root/data"
-      - "$PWD/genesis/genesis-ec1.json:/root/data/genesis.json" # mount genesis.js from host
-    working_dir: /root
-    ports:
-      - "8545:8545" #uncomment this line to enable JSON-RPC access from outside of network
-    #  - "30303:30303"
-    expose:
-      - "8545" # enable JSON-RPC access fron only inside of network
-    networks:
-      - ec1net
-    logging:
-      driver: "json-file"
-      options:
-        max-size: "10m"
-        max-file: "3"
-    # following parameters are given to geth
-    command: >
-      --rpc
-      --networkid 10
-      --nodiscover
-      --datadir=/root/data
-      --rpcaddr "0.0.0.0"
-      --rpcport "8545"
-      --rpccorsdomain "*"
-      --rpcvhosts "*"
-      --rpcapi "eth,web3"
-      --unlock 0,1,2,3,4
-      --password "/dev/null"
-      --gasprice 0
-      --mine --minerthreads=1
-  geth2:
-    container_name: geth2
-    image: ethereum/client-go:v1.8.27
-    volumes:
-      - "$PWD/data-ec2:/root/data"
-      - "$PWD/genesis/genesis-ec2.json:/root/data/genesis.json" # mount genesis.js from host
-    working_dir: /root
-    ports:
-      - "8546:8545" #uncomment this line to enable JSON-RPC access from outside of network
-    #  - "30303:30303"
-    expose:
-      - "8545" # enable JSON-RPC access fron only inside of network
-    networks:
-      - ec2net
-    logging:
-      driver: "json-file"
-      options:
-        max-size: "10m"
-        max-file: "3"
-    # following parameters are given to geth
-    command: >
-      --rpc
-      --networkid 10
-      --nodiscover
-      --datadir=/root/data
-      --rpcaddr "0.0.0.0"
-      --rpcport "8545"
-      --rpccorsdomain "*"
-      --rpcvhosts "*"
-      --rpcapi "eth,web3"
-      --unlock 0,1,2,3,4
-      --password "/dev/null"
-      --gasprice 0
-      --mine --minerthreads=1
-networks:
-  ec1net:
-    external: true
-  ec2net:
-    external: true
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/docker-init.yml b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/docker-init.yml
deleted file mode 100644
index 51b6de5493..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/docker-init.yml
+++ /dev/null
@@ -1,44 +0,0 @@
-# Copyright 2021 Hyperledger Cactus Contributors
-# SPDX-License-Identifier: Apache-2.0
-version: '3'
-services:
-  # ec1
-  make-account-ec1:
-    container_name: make-account-ec1
-    image: ethereum/client-go:v1.8.27
-    tty: true
-    volumes:
-      - "$PWD/data-ec1:/root/data"
-    command: >
-      --datadir "/root/data"
-      account new --password /dev/null > /root/data/log.txt
-  init-chain-ec1:
-    container_name: init-chain-ec1
-    image: ethereum/client-go:v1.8.27
-    tty: true
-    volumes:
-      - "$PWD/data-ec1:/root/data"
-      - "$PWD/genesis/genesis-ec1.json:/root/data/genesis.json"
-    command: >
-      --datadir "/root/data"
-      init /root/data/genesis.json
-  # ec2
-  make-account-ec2:
-    container_name: make-account-ec2
-    image: ethereum/client-go:v1.8.27
-    tty: true
-    volumes:
-      - "$PWD/data-ec2:/root/data"
-    command: >
-      --datadir "/root/data"
-      account new --password /dev/null > /root/data/log.txt
-  init-chain-ec2:
-    container_name: init-chain-ec2
-    image: ethereum/client-go:v1.8.27
-    tty: true
-    volumes:
-      - "$PWD/data-ec2:/root/data"
-      - "$PWD/genesis/genesis-ec2.json:/root/data/genesis.json"
-    command: >
-      --datadir "/root/data"
-      init /root/data/genesis.json
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/down.sh b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/down.sh
deleted file mode 100644
index 5d4067f077..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/down.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-# Copyright 2021 Hyperledger Cactus Contributors
-# SPDX-License-Identifier: Apache-2.0
-docker-compose -f docker-init.yml down
-docker-compose down 
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/genesis/template/genesis-template.json b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/genesis/template/genesis-template.json
deleted file mode 100644
index 1d3401b722..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/genesis/template/genesis-template.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "config": {
-    "chainId": 10,
-    "homesteadBlock": 0,
-    "eip155Block": 0,
-    "eip158Block": 0
-  },
-  "alloc"      : {
-      "ADDRESS":
-      {"balance":"100000000000000000000000000"}
-   },
-  "coinbase"   : "0x3333333333333333333333333333333333333333",
-  "difficulty" : "0x4000",
-  "extraData"  : "",
-  "gasLimit"   : "0x8000000",
-  "nonce"      : "0x0000000000000042",
-  "mixhash"    : "0x0000000000000000000000000000000000000000000000000000000000000000",
-  "parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
-  "timestamp"  : "0x00"
-}
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/init-account.sh b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/init-account.sh
deleted file mode 100644
index 40356541b0..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/init-account.sh
+++ /dev/null
@@ -1,34 +0,0 @@
-# Copyright 2021 Hyperledger Cactus Contributors
-# SPDX-License-Identifier: Apache-2.0
-echo "make-account-ec1-accounts[0]"
-docker-compose -f docker-init.yml run make-account-ec1 
-cp ./genesis/template/genesis-template.json ./genesis/genesis-ec1.json
-echo " "
-echo "make-account-ec1-accounts[1]"
-docker-compose -f docker-init.yml run make-account-ec1 
-echo " "
-echo "make-account-ec1-accounts[2]"
-docker-compose -f docker-init.yml run make-account-ec1 
-echo " "
-echo "make-account-ec1-accounts[3]"
-docker-compose -f docker-init.yml run make-account-ec1 
-echo " "
-echo "make-account-ec1-accounts[4]"
-docker-compose -f docker-init.yml run make-account-ec1 
-echo " "
-echo "make-account-ec2-accounts[0]"
-docker-compose -f docker-init.yml run make-account-ec2 
-cp ./genesis/template/genesis-template.json ./genesis/genesis-ec2.json
-echo " "
-echo "make-account-ec2-accounts[1]"
-docker-compose -f docker-init.yml run make-account-ec2 
-echo " "
-echo "make-account-ec2-accounts[2]"
-docker-compose -f docker-init.yml run make-account-ec2 
-echo " "
-echo "make-account-ec2-accounts[3]"
-docker-compose -f docker-init.yml run make-account-ec2 
-echo " "
-echo "make-account-ec2-accounts[4]"
-docker-compose -f docker-init.yml run make-account-ec2 
-echo " "
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/init-chain.sh b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/init-chain.sh
deleted file mode 100644
index eed80e47e8..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/init-chain.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-# Copyright 2021 Hyperledger Cactus Contributors
-# SPDX-License-Identifier: Apache-2.0
-docker-compose -f docker-init.yml run init-chain-ec1
-docker-compose -f docker-init.yml run init-chain-ec2
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/logview.sh b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/logview.sh
deleted file mode 100644
index 6f8cdd2024..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/logview.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-# Copyright 2021 Hyperledger Cactus Contributors
-# SPDX-License-Identifier: Apache-2.0
-docker-compose logs -f 
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/up.sh b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/up.sh
deleted file mode 100644
index 4b82ede74d..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/geth-docker/up.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-# Copyright 2021 Hyperledger Cactus Contributors
-# SPDX-License-Identifier: Apache-2.0
-docker network create ec1net
-docker network create ec2net
-docker-compose up -d 
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/package.json b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/package.json
deleted file mode 100644
index ae34c92229..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/package.json
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-  "name": "validatorDriver",
-  "version": "0.0.0",
-  "license": "Apache-2.0",
-  "private": true,
-  "scripts": {
-    "build": "npm run build-ts && npm run copy-static-assets",
-    "build-ts": "tsc",
-    "tslint": "tslint -c tslint.json -p tsconfig.json",
-    "copy-static-assets": "ts-node copyStaticAssets.ts"
-  },
-  "dependencies": {
-    "@types/node": "18.11.9",
-    "config": "1.31.0",
-    "ethereumjs-common": "1.5.2",
-    "ethereumjs-tx": "2.1.2",
-    "socket.io-client-fixed-types": "4.5.4",
-    "ts-node": "9.1.1",
-    "web3": "1.7.0"
-  },
-  "devDependencies": {
-    "typescript": "5.5.2",
-    "@types/shelljs": "^0.8.12"
-  }
-}
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/tsconfig.json b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/tsconfig.json
deleted file mode 100644
index 928b357062..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/tsconfig.json
+++ /dev/null
@@ -1,21 +0,0 @@
-{
-  "compileOnSave": false,
-  "compilerOptions": {
-    "outDir": "./dist",
-    "sourceMap": false,
-    "declaration": false,
-    "moduleResolution": "node",
-    "emitDecoratorMetadata": true,
-    "experimentalDecorators": true,
-    "target": "ES2017",
-    "module": "CommonJS",
-    "typeRoots": [
-      "node_modules/@types",
-      "./typings" 
-    ],
-    "lib": [
-      "es2017",
-      "dom" 
-    ]
-  },
-}
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/validatorDriver_getNonceHex.ts b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/validatorDriver_getNonceHex.ts
deleted file mode 100644
index 94c5db05be..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/validatorDriver_getNonceHex.ts
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
- * Copyright 2021 Hyperledger Cactus Contributors
- * SPDX-License-Identifier: Apache-2.0
- *
- * validatorDriver_getNonceHex.js
- */
-
-////////
-// Usage
-// 1) Set parameter to parameter variable
-//      [parameter variables of getNonceHex] referredAddress
-// 2) Specify the function to execute with "requestData"
-// 3) execute
-//
-////////
-
-import { io } from "socket.io-client-fixed-types";
-
-{
-  // Validator test program.(socket.io client)
-  const config = require("config");
-
-  // Specify the server (Validator) of the communication destination
-  const validatorUrl = config.validatorUrl;
-  console.log("validatorUrl: " + validatorUrl);
-  const options = {
-    rejectUnauthorized: false, // temporary avoidance since self-signed certificates are used
-    reconnection: false,
-    timeout: 20000,
-  };
-  const socket = io(validatorUrl, options);
-
-  // for test
-  // ec1-accounts[0] Address: {ec709e1774f0ce4aba47b52a499f9abaaa159f71}
-  // ec1-accounts[1] Address: {36e146d5afab61ab125ee671708eeb380aea05b6}
-  // ec1-accounts[2] Address: {06fc56347d91c6ad2dae0c3ba38eb12ab0d72e97}
-  // ec1-accounts[3] Address: {9d624f7995e8bd70251f8265f2f9f2b49f169c55}
-  // ec1-accounts[4] Address: {2666a32bf7594ab5395d766dcfbf03d557dab538}
-
-  // ## Request for "getNonceHex"
-  //var referedAddress = "36e146d5afab61ab125ee671708eeb380aea05b6";
-  const referedAddress = "ec709e1774f0ce4aba47b52a499f9abaaa159f71";
-
-  const reqID = "reqID_001";
-
-  // function param
-  const requestData = {
-    contract: {}, // NOTE: Since contract does not need to be specified, specify an empty object.
-    // method: {type: "web3Eth", command: "getNonceHex"},
-    method: { type: "function", command: "getNonceHex" },
-    // args: {"args": [referedAddress]},
-    args: { args: { args: [referedAddress] } },
-    reqID: reqID,
-  };
-
-  const requestData_A = {
-    contract: {}, // NOTE: Since contract does not need to be specified, specify an empty object.
-    func: "getNonceHex",
-    args: { args: { args: [referedAddress] } },
-    reqID: reqID,
-  };
-
-  const json2str = (jsonObj: object) => {
-    try {
-      return JSON.stringify(jsonObj);
-    } catch (error) {
-      return null;
-    }
-  };
-
-  socket.on("connect_error", (err: object) => {
-    console.log("####connect_error:", err);
-    // end communication
-    socket.disconnect();
-    process.exit(0);
-  });
-
-  socket.on("connect_timeout", (err: object) => {
-    console.log("####Error:", err);
-    // end communication
-    socket.disconnect();
-    process.exit(0);
-  });
-
-  socket.on("error", (err: object) => {
-    console.log("####Error:", err);
-  });
-
-  socket.on("eventReceived", function (res: object) {
-    // output the data received from the client
-    console.log("#[recv]eventReceived, res: " + json2str(res));
-  });
-
-  const requestStopMonitor = () => {
-    console.log("##exec requestStopMonitor()");
-    socket.emit("stopMonitor");
-
-    setTimeout(function () {
-      // end communication
-      socket.disconnect();
-      process.exit(0);
-    }, 5000);
-  };
-
-  // request StartMonitor
-  const requestStartMonitor = () => {
-    console.log("##exec requestStartMonitor()");
-    socket.emit("startMonitor");
-
-    setTimeout(requestStopMonitor, 15000);
-  };
-
-  const sendRequest = () => {
-    //
-    console.log("exec sendRequest()");
-    console.log("#[send]requestData: " + json2str(requestData));
-    socket.emit("request2", requestData);
-    // socket.emit('request', requestData_A);
-  };
-
-  setTimeout(requestStartMonitor, 2000);
-  setTimeout(sendRequest, 4000);
-}
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/validatorDriver_getNumericBalance.ts b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/validatorDriver_getNumericBalance.ts
deleted file mode 100644
index e54145e60f..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/validatorDriver_getNumericBalance.ts
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * Copyright 2021 Hyperledger Cactus Contributors
- * SPDX-License-Identifier: Apache-2.0
- *
- * validatorDriver_getNumericBalance.js
- */
-
-////////
-// Usage
-// 1) Set parameter to parameter variable
-//      [parameter variables of getNumericBalance] referredAddress
-// 2) Specify the function to execute with "requestData"
-// 3) execute
-//
-////////
-
-import { io } from "socket.io-client-fixed-types";
-
-{
-  // Validator test program.(socket.io client)
-  const config = require("config");
-
-  // Specify the server (Validator) of the communication destination
-  const validatorUrl = config.validatorUrl;
-  console.log("validatorUrl: " + validatorUrl);
-  const options = {
-    rejectUnauthorized: false, // temporary avoidance since self-signed certificates are used
-    reconnection: false,
-    timeout: 20000,
-  };
-  const socket = io(validatorUrl, options);
-
-  // for test
-  // ec1-accounts[0] Address: {ec709e1774f0ce4aba47b52a499f9abaaa159f71}
-  // ec1-accounts[1] Address: {36e146d5afab61ab125ee671708eeb380aea05b6}
-  // ec1-accounts[2] Address: {06fc56347d91c6ad2dae0c3ba38eb12ab0d72e97}
-  // ec1-accounts[3] Address: {9d624f7995e8bd70251f8265f2f9f2b49f169c55}
-  // ec1-accounts[4] Address: {2666a32bf7594ab5395d766dcfbf03d557dab538}
-
-  // ## Request for "getNumericBalance"
-  const referedAddress = "36e146d5afab61ab125ee671708eeb380aea05b6";
-  const reqID = "reqID_001";
-
-  // function param
-  const requestData = {
-    contract: {}, // NOTE: Since contract does not need to be specified, specify an empty object.
-    method: { type: "web3Eth", command: "getBalance" },
-    args: { args: [referedAddress] },
-    // args: {"args": {"args": [referedAddress]}},
-    reqID: reqID,
-  };
-
-  const requestData_A = {
-    contract: {}, // NOTE: Since contract does not need to be specified, specify an empty object.
-    func: "getNumericBalance",
-    args: { args: { args: [referedAddress] } },
-    reqID: reqID,
-  };
-
-  const json2str = (jsonObj: object) => {
-    try {
-      return JSON.stringify(jsonObj);
-    } catch (error) {
-      return null;
-    }
-  };
-
-  socket.on("connect_error", (err: object) => {
-    console.log("####connect_error:", err);
-    // end communication
-    socket.disconnect();
-    process.exit(0);
-  });
-
-  socket.on("connect_timeout", (err: object) => {
-    console.log("####Error:", err);
-    // end communication
-    socket.disconnect();
-    process.exit(0);
-  });
-
-  socket.on("error", (err: object) => {
-    console.log("####Error:", err);
-  });
-
-  socket.on("eventReceived", function (res: object) {
-    // output the data received from the client
-    console.log("#[recv]eventReceived, res: " + json2str(res));
-  });
-
-  const requestStopMonitor = () => {
-    console.log("##exec requestStopMonitor()");
-    socket.emit("stopMonitor");
-
-    setTimeout(function () {
-      // end communication
-      socket.disconnect();
-      process.exit(0);
-    }, 5000);
-  };
-
-  // request StartMonitor
-  const requestStartMonitor = () => {
-    console.log("##exec requestStartMonitor()");
-    socket.emit("startMonitor");
-
-    setTimeout(requestStopMonitor, 15000);
-  };
-
-  const sendRequest = () => {
-    //
-    console.log("exec sendRequest()");
-    console.log("#[send]requestData: " + json2str(requestData));
-    socket.emit("request", requestData_A);
-    // socket.emit('request2', requestData);
-  };
-
-  setTimeout(requestStartMonitor, 2000);
-  setTimeout(sendRequest, 4000);
-}
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/validatorDriver_sendRawTransaction.ts b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/validatorDriver_sendRawTransaction.ts
deleted file mode 100644
index a6eeb99b88..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/validatorDriver_sendRawTransaction.ts
+++ /dev/null
@@ -1,162 +0,0 @@
-/*
- * Copyright 2021 Hyperledger Cactus Contributors
- * SPDX-License-Identifier: Apache-2.0
- *
- * validatorDriver_sendRawTransaction.js
- */
-
-////////
-// Usage
-// 1) Set parameter to parameter variable
-//      [parameter variables of sendRawTransaction] fromAddress,fromAddressPkey,toAddress,amount,amount
-// 2) execute
-//
-////////
-
-import { io } from "socket.io-client-fixed-types";
-
-{
-  // Validator test program.(socket.io client)
-  const config = require("config");
-
-  // Specify the server (Validator) of the communication destination
-  const validatorUrl = config.validatorUrl;
-  console.log("validatorUrl: " + validatorUrl);
-  const options = {
-    rejectUnauthorized: false, // temporary avoidance since self-signed certificates are used
-    reconnection: false,
-    timeout: 20000,
-  };
-  const socket = io(validatorUrl, options);
-
-  // for signing
-  const Common = require("ethereumjs-common").default;
-  const Tx = require("ethereumjs-tx").Transaction;
-  const Web3 = require("web3");
-  const gethUrl = config.gethUrl;
-  console.log("gethUrl: " + gethUrl);
-  const provider = new Web3.providers.HttpProvider(gethUrl);
-  const web3 = new Web3(provider);
-
-  //ethereumjs-tx2.1.2_support
-  const customCommon = Common.forCustomChain(
-    "mainnet",
-    {
-      name: config.chainName,
-      networkId: config.networkId,
-      chainId: config.chainId,
-    },
-    "petersburg",
-  );
-
-  // for test
-  // ec1-accounts[0] Address: {ec709e1774f0ce4aba47b52a499f9abaaa159f71}, pkey: 40d7e5931a6e0807d3ebd70518f635dbf575975d3bb564ff34c99be416067c89
-  // ec1-accounts[1] Address: {36e146d5afab61ab125ee671708eeb380aea05b6}, pkey: 13a45756bc314465c4ae2ff0eb9ab58cf72453c04604d8fa14393eb25ce96d06
-  // ec1-accounts[2] Address: {06fc56347d91c6ad2dae0c3ba38eb12ab0d72e97}, pkey: cb5d48d371916a4ea1627189d8af4f642a5d72746a06b559780c3f5932658207
-  // ec1-accounts[3] Address: {9d624f7995e8bd70251f8265f2f9f2b49f169c55}, pkey: 3d966c433eb650f40287debacd92afb9c390024e359f9f719b2ca6c0ab07339a
-  // ec1-accounts[4] Address: {2666a32bf7594ab5395d766dcfbf03d557dab538}, pkey: 918b9b842a633c04e7e97b917d091736334dab6dd71fdc1dcbf0c763014caaf4
-
-  // ## Request Params
-  const fromAddress = "36e146d5afab61ab125ee671708eeb380aea05b6";
-  const fromAddressPkey =
-    "13a45756bc314465c4ae2ff0eb9ab58cf72453c04604d8fa14393eb25ce96d06";
-  const toAddress = "06fc56347d91c6ad2dae0c3ba38eb12ab0d72e97";
-  const amount = 100;
-
-  const gas = 21000;
-
-  const json2str = (jsonObj: any) => {
-    try {
-      return JSON.stringify(jsonObj);
-    } catch (error) {
-      return null;
-    }
-  };
-
-  const makeTxTransferNumericAsset = () => {
-    //web3_v1.2.9_support
-    web3.eth.getTransactionCount("0x" + fromAddress).then((_nance: any) => {
-      const txnCount = _nance;
-      //  NOTE: No need to count up.
-
-      const gasPrice = web3.eth.gasPrice;
-
-      const privKey = Buffer.from(fromAddressPkey, "hex");
-      console.log("##privKey=" + fromAddressPkey);
-      const rawTx = {
-        nonce: web3.utils.toHex(txnCount),
-        to: "0x" + toAddress,
-        value: amount,
-        gas: gas,
-      };
-      console.log("txnCount=" + web3.utils.toHex(txnCount));
-      console.log("##rawTx=" + json2str(rawTx));
-      const tx = new Tx(rawTx, { common: customCommon });
-      tx.sign(privKey);
-      const serializedTx = tx.serialize();
-      const serializedTxHex = "0x" + serializedTx.toString("hex");
-      console.log("##serializedTxHex=" + serializedTxHex);
-
-      const func = "sendRawTransaction";
-
-      const args = {
-        serializedTx: serializedTxHex,
-      };
-      // function param
-      const requestData = {
-        contract: {}, // NOTE: Since contract does not need to be specified, specify an empty object.
-        method: { type: "web3Eth", command: "sendRawTransaction" },
-        args: { args: [serializedTxHex] },
-      };
-
-      console.log("exec sendRequest()");
-      console.log("#[send]requestData: " + json2str(requestData));
-      socket.emit("request2", requestData);
-    });
-  };
-
-  socket.on("connect_error", (err: object) => {
-    console.log("####connect_error:", err);
-    // end communication
-    socket.disconnect();
-    process.exit(0);
-  });
-
-  socket.on("connect_timeout", (err: object) => {
-    console.log("####Error:", err);
-    // end communication
-    socket.disconnect();
-    process.exit(0);
-  });
-
-  socket.on("error", (err: any) => {
-    console.log("####Error:", err);
-  });
-
-  socket.on("eventReceived", function (res: object) {
-    // output the data received from the client
-    console.log("#[recv]eventReceived, res: " + json2str(res));
-  });
-
-  const requestStopMonitor = () => {
-    console.log("##exec requestStopMonitor()");
-    socket.emit("stopMonitor");
-
-    setTimeout(function () {
-      // end communication
-      socket.disconnect();
-      process.exit(0);
-    }, 5000);
-  };
-
-  // request StartMonitor
-  const requestStartMonitor = () => {
-    console.log("##exec requestStartMonitor()");
-    socket.emit("startMonitor");
-
-    setTimeout(requestStopMonitor, 15000);
-  };
-
-  setTimeout(requestStartMonitor, 2000);
-  setTimeout(makeTxTransferNumericAsset, 4000);
-}
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/validatorDriver_transferNumericAsset.ts b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/validatorDriver_transferNumericAsset.ts
deleted file mode 100644
index f6a87ef9b0..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/src/test/typescript/unit-test/validatorDriver_transferNumericAsset.ts
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * Copyright 2021 Hyperledger Cactus Contributors
- * SPDX-License-Identifier: Apache-2.0
- *
- * validatorDriver_transferNumericAsset.js
- */
-
-////////
-// Usage
-// 1) Set parameter to parameter variable
-//      [parameter variables of transferNumericAsset] fromAddress,toAddress,amount
-// 2) Specify the function to execute with "requestData"
-// 3) execute
-//
-////////
-
-import { io } from "socket.io-client-fixed-types";
-
-{
-  // Validator test program.(socket.io client)
-  const config = require("config");
-
-  // Specify the server (Validator) of the communication destination
-  const validatorUrl = config.validatorUrl;
-  console.log("validatorUrl: " + validatorUrl);
-  const options = {
-    rejectUnauthorized: false, // temporary avoidance since self-signed certificates are used
-    reconnection: false,
-    timeout: 20000,
-  };
-  const socket = io(validatorUrl, options);
-
-  // for test
-  // ec1-accounts[0] Address: {ec709e1774f0ce4aba47b52a499f9abaaa159f71}
-  // ec1-accounts[1] Address: {36e146d5afab61ab125ee671708eeb380aea05b6}
-  // ec1-accounts[2] Address: {06fc56347d91c6ad2dae0c3ba38eb12ab0d72e97}
-  // ec1-accounts[3] Address: {9d624f7995e8bd70251f8265f2f9f2b49f169c55}
-  // ec1-accounts[4] Address: {2666a32bf7594ab5395d766dcfbf03d557dab538}
-
-  // ## Request for "transferNumericAsset"
-  const fromAddress = "36e146d5afab61ab125ee671708eeb380aea05b6";
-  const toAddress = "06fc56347d91c6ad2dae0c3ba38eb12ab0d72e97";
-  const amount = 50;
-  const func2 = "transferNumericAsset";
-  const args2 = {
-    fromAddress: fromAddress,
-    toAddress: toAddress,
-    amount: amount,
-  };
-  const reqID = "reqID_002";
-
-  // function param
-  //var requestData = {
-  //    contract: {},
-  //    method: {"method": func2},
-  //    args: {"args": [args2]}
-  //};
-  const requestData = {
-    contract: {}, // NOTE: Since contract does not need to be specified, specify an empty object.
-    method: { type: "web3Eth", command: "sendTransaction" },
-    args: {
-      args: [
-        {
-          from: fromAddress,
-          to: toAddress,
-          value: amount,
-        },
-      ],
-    },
-    reqID: reqID,
-  };
-
-  const json2str = (jsonObj: object) => {
-    try {
-      return JSON.stringify(jsonObj);
-    } catch (error) {
-      return null;
-    }
-  };
-
-  socket.on("connect_error", (err: object) => {
-    console.log("####connect_error:", err);
-    // end communication
-    socket.disconnect();
-    process.exit(0);
-  });
-
-  socket.on("connect_timeout", (err: object) => {
-    console.log("####Error:", err);
-    // end communication
-    socket.disconnect();
-    process.exit(0);
-  });
-
-  socket.on("error", (err: object) => {
-    console.log("####Error:", err);
-  });
-
-  socket.on("eventReceived", function (res: any) {
-    // output the data received from the client
-    console.log("#[recv]eventReceived, res: " + json2str(res));
-  });
-
-  const requestStopMonitor = () => {
-    console.log("##exec requestStopMonitor()");
-    socket.emit("stopMonitor");
-
-    setTimeout(function () {
-      // end communication
-      socket.disconnect();
-      process.exit(0);
-    }, 5000);
-  };
-
-  // request StartMonitor
-  const requestStartMonitor = () => {
-    console.log("##exec requestStartMonitor()");
-    socket.emit("startMonitor");
-
-    setTimeout(requestStopMonitor, 15000);
-  };
-
-  const sendRequest = () => {
-    //
-    console.log("exec sendRequest()");
-    console.log("#[send]requestData: " + json2str(requestData));
-    socket.emit("request2", requestData);
-  };
-
-  setTimeout(requestStartMonitor, 2000);
-  setTimeout(sendRequest, 4000);
-}
diff --git a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/tsconfig.json b/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/tsconfig.json
deleted file mode 100644
index c760aaf176..0000000000
--- a/packages/cactus-plugin-ledger-connector-go-ethereum-socketio/tsconfig.json
+++ /dev/null
@@ -1,37 +0,0 @@
-{
-  "extends": "../../tsconfig.base.json",
-  "compilerOptions": {
-    "rootDir": "./src",
-    "composite": true,
-    "outDir": "./dist/lib/",
-    "declarationDir": "./dist/lib",
-    "sourceMap": false,
-    "emitDecoratorMetadata": true,
-    "experimentalDecorators": true,
-    "tsBuildInfoFile": "../../.build-cache/cactus-plugin-ledger-connector-go-ethereum-socketio.tsbuildinfo"
-  },
-  "include": [
-    "./src/main/typescript/common/core/*.ts",
-    "./src/main/typescript/common/core/bin/*.ts",
-    "./src/main/typescript/common/core/config/*.ts",
-    "./src/main/typescript/connector/*.ts",
-    "./src/main/typescript/*.ts",
-    "./src/test/typescript/**/*.ts",
-    "src/**/*.json",
-    "src/**/*.sol"
-  ],
-  "references": [
-    {
-      "path": "../cactus-cmd-socketio-server/tsconfig.json"
-    },
-    {
-      "path": "../cactus-test-tooling/tsconfig.json"
-    },
-    {
-      "path": "../cactus-common/tsconfig.json"
-    },
-    {
-      "path": "../cactus-api-client/tsconfig.json"
-    }
-  ]
-}
diff --git a/packages/cactus-plugin-persistence-ethereum/README.md b/packages/cactus-plugin-persistence-ethereum/README.md
index fd1b1e6af1..547faabc60 100644
--- a/packages/cactus-plugin-persistence-ethereum/README.md
+++ b/packages/cactus-plugin-persistence-ethereum/README.md
@@ -42,7 +42,7 @@ import { v4 as uuidv4 } from "uuid";
 
 const persistencePlugin = new PluginPersistenceEthereum({
   instanceId: uuidv4(),
-  apiClient: new SocketIOApiClient(apiConfigOptions),
+  apiClient: new EthereumApiClient(apiConfigOptions),
   logLevel: "info",
   connectionString:
     "postgresql://postgres:your-super-secret-and-long-postgres-password@localhost:5432/postgres",
@@ -65,7 +65,7 @@ const factory = new PluginFactoryLedgerPersistence({
 
 const persistencePlugin = await factory.create({
   instanceId: uuidv4(),
-  apiClient: new SocketIOApiClient(apiConfigOptions),
+  apiClient: new EthereumApiClient(apiConfigOptions),
   logLevel: "info",
   connectionString:
     "postgresql://postgres:your-super-secret-and-long-postgres-password@localhost:5432/postgres",
diff --git a/packages/cactus-verifier-client/README.md b/packages/cactus-verifier-client/README.md
index 044b196fa4..e98454da68 100644
--- a/packages/cactus-verifier-client/README.md
+++ b/packages/cactus-verifier-client/README.md
@@ -13,7 +13,6 @@ This package provides `Verifier` and `VerifierFactory` components that can be us
 | IROHA_2X               | cactus-plugin-ledger-connector-iroha2           |
 | FABRIC_2X              | cactus-plugin-ledger-connector-fabric           |
 | SAWTOOTH_1X            | cactus-plugin-ledger-connector-sawtooth         |
-| legacy-socketio        | cactus-plugin-ledger-connector-go-ethereum-socketio |
 
 ## VerifierFactory
 - Used to create single verifier per ledger based on pre-defined configuration.
@@ -31,16 +30,6 @@ import {
 // Create VerifierFactory configuration that should describe all validators we want to connect to.
 // This can be read from a file or typed manually, the config is a superset of cactus-cmd-socketio-server ledger plugin config.
 const ledgerPluginInfo: VerifierFactoryConfig = [
-    {
-        validatorID: "some_legacy_connector",    // required
-        validatorType: "legacy-socketio",        // required - see table above for supported validator types
-        validatorURL: "https://localhost:9999",  // legacy-socketio specific config
-        validatorKeyPath: "./keysUr7d10R.crt",   // legacy-socketio specific config
-        ledgerInfo: {                            // optional
-            ledgerAbstract: "My legacy Ledger",
-        },
-        apiInfo: [],                             // optional
-    },
     {
         validatorID: "besu_openapi_connector", // required
         validatorType: "BESU_2X",              // required - see table above for supported validator types
diff --git a/packages/cactus-verifier-client/src/main/typescript/get-validator-api-client.ts b/packages/cactus-verifier-client/src/main/typescript/get-validator-api-client.ts
index 8ea8b19608..223e6ae4a6 100644
--- a/packages/cactus-verifier-client/src/main/typescript/get-validator-api-client.ts
+++ b/packages/cactus-verifier-client/src/main/typescript/get-validator-api-client.ts
@@ -5,10 +5,6 @@
  * get-validator-api-client.ts
  */
 
-import type {
-  SocketIOApiClient,
-  SocketIOApiClientOptions,
-} from "@hyperledger/cactus-api-client";
 import type {
   BesuApiClient,
   BesuApiClientOptions,
@@ -41,10 +37,6 @@ import type {
  * @warning Remember to keep this list updated to have new ApiClients visible in VerifierFactory interface.
  */
 export type ClientApiConfig = {
-  "legacy-socketio": {
-    in: SocketIOApiClientOptions;
-    out: SocketIOApiClient;
-  };
   BESU_1X: {
     in: BesuApiClientOptions;
     out: BesuApiClient;
@@ -87,14 +79,9 @@ export async function getValidatorApiClient<K extends keyof ClientApiConfig>(
   options: ClientApiConfig[K]["in"],
 ): Promise<ClientApiConfig[K]["out"]> {
   switch (validatorType) {
-    case "legacy-socketio":
-      // TODO - replace with dynamic imports once ESM is supported
-      const apiClientPackage = require("@hyperledger/cactus-api-client");
-      return new apiClientPackage.SocketIOApiClient(
-        options as SocketIOApiClientOptions,
-      );
     case "BESU_1X":
     case "BESU_2X":
+      // TODO - replace with dynamic imports once ESM is supported
       const besuPackage = require("@hyperledger/cactus-plugin-ledger-connector-besu");
       return new besuPackage.BesuApiClient(options as BesuApiClientOptions);
     case "ETH_1X":
diff --git a/packages/cactus-verifier-client/src/test/typescript/unit/get-validator-api-client.test.ts b/packages/cactus-verifier-client/src/test/typescript/unit/get-validator-api-client.test.ts
index 4293eb0835..692d6f8cb0 100644
--- a/packages/cactus-verifier-client/src/test/typescript/unit/get-validator-api-client.test.ts
+++ b/packages/cactus-verifier-client/src/test/typescript/unit/get-validator-api-client.test.ts
@@ -4,28 +4,8 @@ import "jest-extended";
 
 import { getValidatorApiClient } from "../../../main/typescript/get-validator-api-client";
 
-import { SocketIOApiClientOptions } from "@hyperledger/cactus-api-client";
 import { BesuApiClientOptions } from "@hyperledger/cactus-plugin-ledger-connector-besu";
 
-test("Create legacy socketio client", async () => {
-  const clientOptions: SocketIOApiClientOptions = {
-    validatorID: "someValId",
-    validatorURL: "invalid-url123asd",
-    validatorKeyValue: "xxxxxxxxxxxxx",
-  };
-
-  const clientApi = await getValidatorApiClient(
-    "legacy-socketio",
-    clientOptions,
-  );
-
-  expect(clientApi.className).toEqual("SocketIOApiClient");
-  expect(clientApi.options).toEqual(clientOptions);
-
-  // Close socket manually to prevent a warning
-  clientApi.close();
-});
-
 test("Create besu client", async () => {
   const clientOptions = new BesuApiClientOptions({ basePath: "foo" });
 
diff --git a/packages/cactus-verifier-client/src/test/typescript/unit/verifier-factory.test.ts b/packages/cactus-verifier-client/src/test/typescript/unit/verifier-factory.test.ts
index 50ff7bc257..7fbfb5ec7c 100644
--- a/packages/cactus-verifier-client/src/test/typescript/unit/verifier-factory.test.ts
+++ b/packages/cactus-verifier-client/src/test/typescript/unit/verifier-factory.test.ts
@@ -3,25 +3,15 @@
 import "jest-extended";
 
 import { Verifier } from "../../../main/typescript/verifier";
-import { SocketIOApiClient } from "@hyperledger/cactus-api-client";
 import {
   VerifierFactory,
   VerifierFactoryConfig,
 } from "../../../main/typescript/verifier-factory";
+import { BesuApiClient } from "@hyperledger/cactus-plugin-ledger-connector-besu";
 
 describe("Constructor Tests", () => {
   test("Basic construction", () => {
     const ledgerPluginInfo: VerifierFactoryConfig = [
-      {
-        validatorID: "sUr7d10R",
-        validatorType: "legacy-socketio",
-        validatorURL: "https://sawtooth-validator:5140",
-        validatorKeyValue: "xxxxxxxx",
-        ledgerInfo: {
-          ledgerAbstract: "Sawtooth Ledger",
-        },
-        apiInfo: [],
-      },
       {
         validatorID: "besu_openapi_connector",
         validatorType: "BESU_2X",
@@ -41,16 +31,6 @@ describe("Constructor Tests", () => {
 
   test("Empty validatorID throws exception", () => {
     const ledgerPluginInfo: VerifierFactoryConfig = [
-      {
-        validatorID: "sUr7d10R",
-        validatorType: "legacy-socketio",
-        validatorURL: "https://sawtooth-validator:5140",
-        validatorKeyValue: "xxxxxxxx",
-        ledgerInfo: {
-          ledgerAbstract: "Sawtooth Ledger",
-        },
-        apiInfo: [],
-      },
       {
         validatorID: "",
         validatorType: "BESU_2X",
@@ -70,16 +50,6 @@ describe("Constructor Tests", () => {
 
 describe("getVerifier Tests", () => {
   const ledgerPluginInfo: VerifierFactoryConfig = [
-    {
-      validatorID: "mySocketSawtoothValidatorId",
-      validatorType: "legacy-socketio",
-      validatorURL: "https://sawtooth-validator:5140",
-      validatorKeyValue: "xxxxxxxx",
-      ledgerInfo: {
-        ledgerAbstract: "Sawtooth Ledger",
-      },
-      apiInfo: [],
-    },
     {
       validatorID: "myBesuValidatorId",
       validatorType: "BESU_2X",
@@ -110,7 +80,7 @@ describe("getVerifier Tests", () => {
 
   test("Throws when requested client type differs from configured type", async () => {
     try {
-      await sut.getVerifier("myBesuValidatorId", "legacy-socketio");
+      await sut.getVerifier("myBesuValidatorId", "CORDA_4X");
       expect(1).toBe(
         "getVerifier with invalid verifier type should throw an error!",
       );
@@ -130,18 +100,6 @@ describe("getVerifier Tests", () => {
     }
   });
 
-  test("Creates a legacy socketio client", async () => {
-    const validatorId = "mySocketSawtoothValidatorId";
-
-    const client = await sut.getVerifier(validatorId, "legacy-socketio");
-
-    expect(client.verifierID).toEqual(validatorId);
-    expect(client.ledgerApi.className).toEqual("SocketIOApiClient");
-    expect(client.ledgerApi.options.validatorID).toEqual(validatorId);
-
-    client.ledgerApi.close();
-  });
-
   test("Creates a open-api based client", async () => {
     const validatorId = "myBesuValidatorId";
 
@@ -153,32 +111,27 @@ describe("getVerifier Tests", () => {
   });
 
   test("Creates correct api client without explicit type specification", async () => {
-    const validatorId = "mySocketSawtoothValidatorId";
+    const validatorId = "myBesuValidatorId";
 
     const client = (await sut.getVerifier(
       validatorId,
-    )) as Verifier<SocketIOApiClient>;
+    )) as Verifier<BesuApiClient>;
 
     expect(client.verifierID).toEqual(validatorId);
-    expect(client.ledgerApi.className).toEqual("SocketIOApiClient");
-    expect(client.ledgerApi.options.validatorID).toEqual(validatorId);
-
-    client.ledgerApi.close();
+    expect(client.ledgerApi.className).toEqual("BesuApiClient");
   });
 
   test("Factory reuses already created verifiers", async () => {
-    const validatorId = "mySocketSawtoothValidatorId";
+    const validatorId = "myBesuValidatorId";
 
-    const client = await sut.getVerifier(validatorId, "legacy-socketio");
+    const client = await sut.getVerifier(validatorId, "BESU_2X");
     expect(client.verifierID).toEqual(validatorId);
     expect(sut["verifierMap"].size).toBe(1);
 
-    const anotherClient = await sut.getVerifier(validatorId, "legacy-socketio");
+    const anotherClient = await sut.getVerifier(validatorId, "BESU_2X");
     expect(anotherClient.verifierID).toEqual(validatorId);
     expect(sut["verifierMap"].size).toBe(1); // No new verifier added
 
     expect(client).toBe(anotherClient);
-
-    client.ledgerApi.close();
   });
 });
diff --git a/tsconfig.json b/tsconfig.json
index 2727afb71e..6c1da3f0cb 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -73,9 +73,6 @@
     {
       "path": "./packages/cactus-plugin-ledger-connector-fabric/tsconfig.json"
     },
-    {
-      "path": "./packages/cactus-plugin-ledger-connector-go-ethereum-socketio/tsconfig.json"
-    },
     {
       "path": "./packages/cactus-plugin-ledger-connector-cdl/tsconfig.json"
     },
diff --git a/yarn.lock b/yarn.lock
index caa2bee0f5..a7f5a3dca4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -10400,42 +10400,6 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@hyperledger/cactus-plugin-ledger-connector-go-ethereum-socketio@workspace:packages/cactus-plugin-ledger-connector-go-ethereum-socketio":
-  version: 0.0.0-use.local
-  resolution: "@hyperledger/cactus-plugin-ledger-connector-go-ethereum-socketio@workspace:packages/cactus-plugin-ledger-connector-go-ethereum-socketio"
-  dependencies:
-    "@hyperledger/cactus-api-client": "npm:2.0.0-rc.3"
-    "@hyperledger/cactus-cmd-socketio-server": "npm:2.0.0-rc.3"
-    "@hyperledger/cactus-common": "npm:2.0.0-rc.3"
-    "@hyperledger/cactus-test-tooling": "npm:2.0.0-rc.3"
-    "@types/config": "npm:3.3.2"
-    "@types/cookie-parser": "npm:1.4.5"
-    "@types/express": "npm:4.17.21"
-    "@types/http-errors": "npm:2.0.1"
-    "@types/node": "npm:18.11.9"
-    "@types/shelljs": "npm:0.8.12"
-    body-parser: "npm:1.20.2"
-    config: "npm:3.3.9"
-    cookie-parser: "npm:1.4.6"
-    debug: "npm:3.1.0"
-    express: "npm:4.19.2"
-    http-errors: "npm:1.6.3"
-    js-yaml: "npm:3.14.1"
-    jsonwebtoken: "npm:9.0.2"
-    log4js: "npm:6.4.1"
-    morgan: "npm:1.10.0"
-    serve-favicon: "npm:2.4.5"
-    shelljs: "npm:0.8.5"
-    socket.io: "npm:4.6.2"
-    socket.io-client-fixed-types: "npm:4.5.4"
-    web3: "npm:1.8.1"
-    web3-core: "npm:1.8.1"
-    web3-core-subscriptions: "npm:1.8.1"
-    web3-eth: "npm:1.8.1"
-    web3-utils: "npm:1.8.1"
-  languageName: unknown
-  linkType: soft
-
 "@hyperledger/cactus-plugin-ledger-connector-iroha2@npm:2.0.0-rc.3, @hyperledger/cactus-plugin-ledger-connector-iroha2@workspace:packages/cactus-plugin-ledger-connector-iroha2":
   version: 0.0.0-use.local
   resolution: "@hyperledger/cactus-plugin-ledger-connector-iroha2@workspace:packages/cactus-plugin-ledger-connector-iroha2"
@@ -16578,13 +16542,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/config@npm:3.3.2":
-  version: 3.3.2
-  resolution: "@types/config@npm:3.3.2"
-  checksum: 10/1baf3f93b0a0415da89afc231210104f79dcfd982bb6a3c926a2a1b5582b3d247d618acb6fdab6b060a22599dc918e4a75d22693929116eeb9d1edc8e8bb5b66
-  languageName: node
-  linkType: hard
-
 "@types/connect-history-api-fallback@npm:^1.3.5":
   version: 1.3.5
   resolution: "@types/connect-history-api-fallback@npm:1.3.5"
@@ -16941,7 +16898,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/glob@npm:*, @types/glob@npm:^7.1.1, @types/glob@npm:~7.2.0":
+"@types/glob@npm:*, @types/glob@npm:^7.1.1":
   version: 7.2.0
   resolution: "@types/glob@npm:7.2.0"
   dependencies:
@@ -17878,16 +17835,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/shelljs@npm:0.8.12":
-  version: 0.8.12
-  resolution: "@types/shelljs@npm:0.8.12"
-  dependencies:
-    "@types/glob": "npm:~7.2.0"
-    "@types/node": "npm:*"
-  checksum: 10/c0517e8355614bad2d391270538bd5c7b65d7a771b333cb3ba9fb6321b4b44e1787e99d19cda97ac5d25ec84e2d6b81cb8cc496da5bdae6a725d922de4b44c70
-  languageName: node
-  linkType: hard
-
 "@types/sockjs@npm:^0.3.33":
   version: 0.3.33
   resolution: "@types/sockjs@npm:0.3.33"
@@ -23559,15 +23506,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"config@npm:3.3.9":
-  version: 3.3.9
-  resolution: "config@npm:3.3.9"
-  dependencies:
-    json5: "npm:^2.2.3"
-  checksum: 10/00e0ea40ffe407e63d13078ca5e36f52f0438bfe5a83ac0563e4fd566f91ffac9068ef74e18f1efbed0449e25b6a5f080772f168f133fd9eb365397cb1ef691e
-  languageName: node
-  linkType: hard
-
 "configstore@npm:^5.0.1":
   version: 5.0.1
   resolution: "configstore@npm:5.0.1"