add sdk

sdk/package.json

@@ -0,0 +1,19 @@
+{
+  "name": "@tkkinn/mock-pyth-sdk",
+  "version": "1.0.0",
+  "description": "This is a SDK for Mock Pyth Oracle",
+  "main": "./dist/index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "build": "tsup ./src/index.ts"
+  },
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "tsup": "^8.0.2",
+    "typescript": "^5.4.5"
+  },
+  "dependencies": {
+    "@solana/web3.js": "^1.91.8"
+  }
+}

sdk/src/idl/mock_pyth.json

@@ -0,0 +1,73 @@
+{
+  "address": "FsJ3A3u2vn5cTVofAjvy6y5kwABJAqYWpe4975bi2epH",
+  "metadata": {
+    "name": "mock_pyth",
+    "version": "0.1.0",
+    "spec": "0.1.0",
+    "description": "Created with Anchor"
+  },
+  "instructions": [
+    {
+      "name": "initialize",
+      "discriminator": [
+        175,
+        175,
+        109,
+        31,
+        13,
+        152,
+        155,
+        237
+      ],
+      "accounts": [
+        {
+          "name": "price",
+          "writable": true
+        }
+      ],
+      "args": [
+        {
+          "name": "price",
+          "type": "i64"
+        },
+        {
+          "name": "expo",
+          "type": "i32"
+        },
+        {
+          "name": "conf",
+          "type": "u64"
+        }
+      ]
+    },
+    {
+      "name": "set_price",
+      "discriminator": [
+        16,
+        19,
+        182,
+        8,
+        149,
+        83,
+        72,
+        181
+      ],
+      "accounts": [
+        {
+          "name": "price",
+          "writable": true
+        }
+      ],
+      "args": [
+        {
+          "name": "price",
+          "type": "i64"
+        },
+        {
+          "name": "conf",
+          "type": "u64"
+        }
+      ]
+    }
+  ]
+}

sdk/src/index.ts

@@ -0,0 +1 @@
+export * from './oracleClient';

sdk/src/oracleClient.ts

@@ -0,0 +1,84 @@
+import { AnchorProvider, BN, Program } from "@coral-xyz/anchor";
+import { ConfirmOptions, Keypair, PublicKey, SystemProgram, TransactionInstruction, TransactionMessage, VersionedTransaction } from "@solana/web3.js";
+import { MockPyth } from "./types/mock_pyth";
+import NodeWallet from "@coral-xyz/anchor/dist/cjs/nodewallet";
+import { OracleClientConfig } from "./oracleClientConfig";
+import idl from "./idl/mock_pyth.json";
+
+export class oracleClient {
+	provider: AnchorProvider;
+	wallet: NodeWallet;
+	public program: Program<MockPyth>;
+	opts?: ConfirmOptions;
+
+    public constructor(config: OracleClientConfig) {
+        this.provider = config.provider;
+        this.wallet = config.wallet;
+		if (!config.program) {
+			const a = JSON.stringify(idl)
+			const token_faucet_idl = JSON.parse(a)
+			this.program = new Program(token_faucet_idl);
+		} else {
+			this.program = config.program;
+		}
+        this.opts = config.opts;
+    }
+
+	public async initOracle(uiPrice: number, expo: number, conf?: number) {
+		const priceFeed = Keypair.generate();
+		if (!conf) conf = (uiPrice / 10) * 10 ** -expo ;
+
+		const createPriceAccount = SystemProgram.createAccount({
+			fromPubkey: this.wallet.publicKey,
+			newAccountPubkey: priceFeed.publicKey,
+			space: 3312,
+			lamports: await this.provider.connection.getMinimumBalanceForRentExemption(3312),
+			programId: this.program.programId,
+		});
+
+		const initializePriceAccount = await this.program.methods.initialize(
+			new BN(uiPrice * 10 ** -expo),
+			expo,
+			new BN(conf * 10 ** 9)
+		).accounts({
+			price: priceFeed.publicKey,
+		}).instruction();
+
+		const instructions = [createPriceAccount, initializePriceAccount];
+		const txId = await this.provider.connection.sendTransaction(await this.v0_pack(instructions, priceFeed), this.opts);
+
+		return [txId, priceFeed.publicKey];
+	}
+
+	public async setPrice(priceFeed: PublicKey, uiPrice: number, expo: number, conf?: number) {
+		if (!conf) conf = (uiPrice / 10) * 10 ** -expo ;
+		const setPrice = await this.program.methods.setPrice(
+			new BN(uiPrice * 10 ** -expo),
+			new BN(conf * 10 ** 9)
+		).accounts({
+			price: priceFeed,
+		}).instruction();
+
+		const tx = await this.provider.connection.sendTransaction(await this.v0_pack([setPrice]), this.opts);
+		return tx;
+	}
+
+    async v0_pack(instructions: TransactionInstruction[], signer?: Keypair) {
+		const blockhash = await this.provider.connection
+        .getLatestBlockhash()
+        .then(res => res.blockhash);
+
+		const messageV0 = new TransactionMessage({
+			payerKey: this.wallet.publicKey,
+			recentBlockhash: blockhash,
+			instructions,
+		}).compileToV0Message();
+
+		const transaction = new VersionedTransaction(messageV0);
+		transaction.sign([this.wallet.payer]);
+        if (signer!=null) transaction.sign([signer]);
+
+		return transaction;
+	}
+
+}

sdk/src/oracleClientConfig.ts

@@ -0,0 +1,12 @@
+import { AnchorProvider, Program } from "@coral-xyz/anchor";
+import NodeWallet from "@coral-xyz/anchor/dist/cjs/nodewallet";
+import { ConfirmOptions, PublicKey } from "@solana/web3.js";
+import { MockPyth } from "./types/mock_pyth";
+
+export type OracleClientConfig = {
+    wallet: NodeWallet;
+    provider: AnchorProvider;
+    program?: Program<MockPyth>;
+    programId?: PublicKey;
+    opts?: ConfirmOptions;
+};

sdk/src/types/mock_pyth.ts

@@ -0,0 +1,79 @@
+/**
+ * Program IDL in camelCase format in order to be used in JS/TS.
+ *
+ * Note that this is only a type helper and is not the actual IDL. The original
+ * IDL can be found at `target/idl/mock_pyth.json`.
+ */
+export type MockPyth = {
+  "address": "FsJ3A3u2vn5cTVofAjvy6y5kwABJAqYWpe4975bi2epH",
+  "metadata": {
+    "name": "mockPyth",
+    "version": "0.1.0",
+    "spec": "0.1.0",
+    "description": "Created with Anchor"
+  },
+  "instructions": [
+    {
+      "name": "initialize",
+      "discriminator": [
+        175,
+        175,
+        109,
+        31,
+        13,
+        152,
+        155,
+        237
+      ],
+      "accounts": [
+        {
+          "name": "price",
+          "writable": true
+        }
+      ],
+      "args": [
+        {
+          "name": "price",
+          "type": "i64"
+        },
+        {
+          "name": "expo",
+          "type": "i32"
+        },
+        {
+          "name": "conf",
+          "type": "u64"
+        }
+      ]
+    },
+    {
+      "name": "setPrice",
+      "discriminator": [
+        16,
+        19,
+        182,
+        8,
+        149,
+        83,
+        72,
+        181
+      ],
+      "accounts": [
+        {
+          "name": "price",
+          "writable": true
+        }
+      ],
+      "args": [
+        {
+          "name": "price",
+          "type": "i64"
+        },
+        {
+          "name": "conf",
+          "type": "u64"
+        }
+      ]
+    }
+  ]
+};

sdk/tsconfig.json

@@ -0,0 +1,13 @@
+{
+	"compilerOptions": {
+		"module": "commonjs",
+		"target": "ES2019",
+		"esModuleInterop": true,
+		"declaration": true,
+		"outDir": "./lib",
+		"resolveJsonModule": true,
+		"skipLibCheck": true
+	},
+	"include": ["src"],
+	"exclude": ["node_modules"]
+}