diff --git a/Dockerfile b/Dockerfile
index 4cf6f86..649dc8f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -27,6 +27,7 @@ ENV MEMBER_TYPE=
 ENV DATABASE_NAME=
 ENV COLLECTION_NAME=
 ENV MEMORY=
+ENV NO_STORAGE=
 # install signal-handler wrapper
 RUN apt-get -y install dumb-init
 # set start command
@@ -38,4 +39,4 @@ RUN npm install -g npm@${NPM_TAG}
 ENV NODE_ENV production
 RUN npm ci --omit=dev
 USER node
-CMD ["sh", "-c", "node ./server.js --host=0.0.0.0 --port=80 --memory=${MEMORY} --silent=${SILENT} --member-type=${MEMBER_TYPE} --connection-uri=${CONNECTION_URI} --database-name=${DATABASE_NAME} --collection-name=${COLLECTION_NAME}"]
+CMD ["sh", "-c", "node ./server.js --host=0.0.0.0 --port=80 --no-storage=${NO_STORAGE} --memory=${MEMORY} --silent=${SILENT} --member-type=${MEMBER_TYPE} --connection-uri=${CONNECTION_URI} --database-name=${DATABASE_NAME} --collection-name=${COLLECTION_NAME}"]
diff --git a/package-lock.json b/package-lock.json
index f5485c8..ff5b86a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -437,6 +437,7 @@
       "version": "7.23.9",
       "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.23.9.tgz",
       "integrity": "sha512-9tcKgqKbs3xGJ+NtKF2ndOBBLVwPjl1SHxPQkd36r3Dlirw3xWUeGaTbqr7uGZcTaxkVNwc+03SVP7aCdWrTlA==",
+
       "dev": true,
       "bin": {
         "parser": "bin/babel-parser.js"
@@ -631,6 +632,7 @@
         "@babel/code-frame": "^7.23.5",
         "@babel/parser": "^7.23.9",
         "@babel/types": "^7.23.9"
+
       },
       "engines": {
         "node": ">=6.9.0"
@@ -3284,6 +3286,7 @@
         "mongodb-client-encryption": ">=6.0.0 <7",
         "snappy": "^7.2.2",
         "socks": "^2.7.1"
+
       },
       "peerDependenciesMeta": {
         "@aws-sdk/credential-providers": {
@@ -3295,6 +3298,7 @@
         "gcp-metadata": {
           "optional": true
         },
+
         "kerberos": {
           "optional": true
         },
diff --git a/src/member-controller.ts b/src/member-controller.ts
index 983c965..eb9d32a 100644
--- a/src/member-controller.ts
+++ b/src/member-controller.ts
@@ -50,18 +50,30 @@ export class MemberController {
     }
 
     public async postMember(member: Member, quads: Quad[]) {
-        const ids = quads.filter(x => x.predicate.value === ns.rdf.type && x.object.value === this._memberType);
+        if (!quads) {
+            throw new Error('Quads cannot be undefined');
+        }
 
-        if (ids && ids.length === 1 && ids[0]) {
-            const id = ids[0].subject.value;
-            const exists = await this._storage.exists(id);
-            if (exists) {
-                console.warn(`[WARNING] overriding id '${id}'`);
+        const ids = quads.filter(x => x.predicate.value === ns.rdf.type && x.object.value === this._memberType);
+        
+        switch (ids.length) {
+            case 1: {
+                const id = ids[0]?.subject.value || '';
+                const exists = await this._storage.exists(id);
+                if (exists) {
+                    console.warn(`[WARNING] overriding id '${id}'`);
+                }
+                return this._storage.insertOrUpdate(id, member);
+            }
+            case 0: {
+                console.warn('[WARNING] missing id:\n', member.body);
+                break;
+            }
+            default: {
+                console.warn('[WARNING] missing unique id:\n', ids);
+                break;
             }
-            return this._storage.insertOrUpdate(id, member);
         }
-        
-        console.warn('[WARNING] missing unique id:\n', ids);
         return undefined;
     }
 
diff --git a/src/no-storage.ts b/src/no-storage.ts
new file mode 100644
index 0000000..af4fb80
--- /dev/null
+++ b/src/no-storage.ts
@@ -0,0 +1,54 @@
+import { Member } from "member";
+import { IStorage } from "./storage";
+
+export class NoStorage implements IStorage {
+  private _count = 0;
+
+  get storageTypeName(): string {
+    return 'None';
+  }
+
+  get memberTypeName(): string {
+    return '(none)';
+  }
+
+  initialize(): Promise<void> {
+    return new Promise(resolve => { resolve();});
+  }
+
+  terminate(): Promise<void> {
+    return new Promise(resolve => { resolve();});
+  }
+
+  count(): Promise<number> {
+    return new Promise(resolve => resolve(this._count));
+  }
+
+  lastIds(_: number): Promise<string[]> {
+    return new Promise(resolve => resolve([]));
+  }
+
+  member(_: string): Promise<Member | undefined> {
+    return new Promise(resolve => resolve(undefined));
+  }
+
+  exists(_: string): Promise<boolean> {
+    return new Promise(resolve => resolve(false));
+  }
+
+  insertOrUpdate(id: string, _: Member): Promise<string> {
+    return new Promise(resolve => {
+      this._count += 1;
+      resolve(id);
+    });
+  }
+
+  deleteAll(): Promise<number> {
+    return new Promise(resolve => {
+      const count = this._count;
+      this._count = 0;
+      resolve(count);
+    });
+  }
+
+}
diff --git a/src/server.ts b/src/server.ts
index bae47c2..4fccaa5 100644
--- a/src/server.ts
+++ b/src/server.ts
@@ -5,7 +5,8 @@ import minimist from 'minimist'
 import { Parser, Quad } from 'n3';
 import { MongoStorage } from './mongo-storage';
 import { MemoryStorage } from './memory-storage';
-import { IStorage } from 'storage';
+import { IStorage } from './storage';
+import { NoStorage } from './no-storage';
 
 interface ParsedMember extends Member{
   quads: Quad[];
@@ -31,8 +32,15 @@ if (!memberType) {
 }
 
 const useMemoryStorage: boolean = (/true/i).test(args['memory']);
-const storage: IStorage = useMemoryStorage
-  ? new MemoryStorage(collectionName) 
+const useNoStorage: boolean = (/true/i).test(args['no-storage']);
+
+if(useMemoryStorage && useNoStorage) {
+  exitWithError('you cannot specify to use both "memory" and "no-storage".');
+}
+
+const storage: IStorage = 
+    useMemoryStorage ? new MemoryStorage(collectionName) 
+  : useNoStorage ? new NoStorage()
   : new MongoStorage(connectionUri, databaseName, collectionName);
 
 if(!silent) {