fix(ts-sdk): take /v1/ping/ off the request critical path (#6788)

mem0-ts/src/client/mem0.ts

@@ -83,6 +83,16 @@ interface ClientOptions {
   host?: string;
 }
 
+interface ClientIdentity {
+  telemetryId: string;
+  organizationId: string | number | null;
+  projectId: string | number | null;
+}
+
+// Shares one ping per (host, api key) across clients; FIFO-capped.
+const IDENTITY_CACHE_MAX = 50;
+const identityByCredentials = new Map<string, Promise<ClientIdentity>>();
+
 export default class MemoryClient {
   apiKey: string;
   host: string;
@@ -91,6 +101,7 @@ export default class MemoryClient {
   headers: Record<string, string>;
   client: any;
   telemetryId: string;
+  private initialized: Promise<void>;
 
   _validateApiKey(): any {
     if (!this.apiKey) {
@@ -122,11 +133,39 @@ export default class MemoryClient {
     });
 
     this._validateApiKey();
+
     this.telemetryId = "";
-    this._initializeClient();
+
+    // Requests never wait on this; only telemetry does.
+    this.initialized = this._resolveIdentity();
   }
 
-  private async _initializeClient() {
+  // One ping per credential pair per process, shared via identityByCredentials.
+  private _resolveIdentity(): Promise<void> {
+    const credentials = `${this.host}\u0000${this.apiKey}`;
+    let shared = identityByCredentials.get(credentials);
+    if (!shared) {
+      shared = this._initializeClient();
+      if (identityByCredentials.size >= IDENTITY_CACHE_MAX) {
+        identityByCredentials.delete(
+          identityByCredentials.keys().next().value!,
+        );
+      }
+      identityByCredentials.set(credentials, shared);
+      // A failed ping must not be cached, or the process never recovers.
+      shared.then((identity) => {
+        if (!identity.telemetryId) identityByCredentials.delete(credentials);
+      });
+    }
+    return shared.then((identity) => {
+      this.telemetryId = identity.telemetryId;
+      if (identity.organizationId != null)
+        this.organizationId = identity.organizationId;
+      if (identity.projectId != null) this.projectId = identity.projectId;
+    });
+  }
+
+  private async _initializeClient(): Promise<ClientIdentity> {
     try {
       await this.ping();
 
@@ -148,6 +187,12 @@ export default class MemoryClient {
         stack: error?.stack || "No stack trace",
       });
     }
+
+    return {
+      telemetryId: this.telemetryId,
+      organizationId: this.organizationId,
+      projectId: this.projectId,
+    };
   }
 
   private async _maybeAliasAnonToEmail(): Promise<void> {
@@ -175,13 +220,18 @@ export default class MemoryClient {
   }
 
   private _captureEvent(methodName: string, args: any[]) {
-    captureClientEvent(methodName, this, {
+    // Deferred until ping() has resolved telemetryId, off the request path.
-      success: true,
+    this.initialized
-      args_count: args.length,
+      .then(() =>
-      keys: args.length > 0 ? args[0] : [],
+        captureClientEvent(methodName, this, {
-    }).catch((error: any) => {
+          success: true,
-      console.error("Failed to capture event:", error);
+          args_count: args.length,
-    });
+          keys: args.length > 0 ? args[0] : [],
+        }),
+      )
+      .catch((error: any) => {
+        console.error("Failed to capture event:", error);
+      });
   }
 
   async _fetchWithErrorHandling(url: string, options: any): Promise<any> {
@@ -262,8 +312,6 @@ export default class MemoryClient {
       throw new Error("Cannot process an empty messages payload.");
     }
 
-    if (this.telemetryId === "") await this.ping();
-
     const payload = this._preparePayload(messages, options);
     const payloadKeys = Object.keys(payload);
     this._captureEvent("add", [payloadKeys]);
@@ -304,7 +352,6 @@ export default class MemoryClient {
       );
     }
 
-    if (this.telemetryId === "") await this.ping();
     const payload: Record<string, any> = {};
     if (text !== undefined) payload.text = text;
     if (metadata !== undefined) payload.metadata = metadata;
@@ -326,7 +373,6 @@ export default class MemoryClient {
   }
 
   async get(memoryId: string): Promise<Memory> {
-    if (this.telemetryId === "") await this.ping();
     this._captureEvent("get", []);
     return this._fetchWithErrorHandling(
       `${this.host}/v1/memories/${encodePathSegment(memoryId)}/`,
@@ -340,7 +386,6 @@ export default class MemoryClient {
     // Reject top-level entity params - must use filters instead
     rejectTopLevelEntityParams(options as Record<string, any>, "getAll");
 
-    if (this.telemetryId === "") await this.ping();
     const payloadKeys = Object.keys(options || {});
     this._captureEvent("get_all", [payloadKeys]);
     const { page, pageSize, filters, ...rest } = options ?? {};
@@ -369,7 +414,6 @@ export default class MemoryClient {
     // Reject top-level entity params - must use filters instead
     rejectTopLevelEntityParams(options as Record<string, any>, "search");
 
-    if (this.telemetryId === "") await this.ping();
     const payloadKeys = Object.keys(options || {});
     this._captureEvent("search", [payloadKeys]);
     const { filters, ...rest } = options ?? {};
@@ -395,7 +439,6 @@ export default class MemoryClient {
     memoryId: string,
     options: DeleteMemoryOptions = {},
   ): Promise<{ message: string }> {
-    if (this.telemetryId === "") await this.ping();
     this._captureEvent("delete", [Object.keys(options || {})]);
     const snakeOptions = camelToSnakeKeys(this._prepareParams(options));
     // @ts-ignore
@@ -412,7 +455,6 @@ export default class MemoryClient {
   async deleteAll(
     options: DeleteAllMemoryOptions = {},
   ): Promise<{ message: string }> {
-    if (this.telemetryId === "") await this.ping();
     const payloadKeys = Object.keys(options || {});
     this._captureEvent("delete_all", [payloadKeys]);
     const snakeOptions = camelToSnakeKeys(this._prepareParams(options));
@@ -429,7 +471,6 @@ export default class MemoryClient {
   }
 
   async history(memoryId: string): Promise<Array<MemoryHistory>> {
-    if (this.telemetryId === "") await this.ping();
     this._captureEvent("history", []);
     const response = await this._fetchWithErrorHandling(
       `${this.host}/v1/memories/${encodePathSegment(memoryId)}/history/`,
@@ -444,7 +485,6 @@ export default class MemoryClient {
     page?: number;
     pageSize?: number;
   }): Promise<AllUsers> {
-    if (this.telemetryId === "") await this.ping();
     this._captureEvent("users", []);
     let url = `${this.host}/v1/entities/`;
     const params: string[] = [];
@@ -464,7 +504,6 @@ export default class MemoryClient {
     entity_id: number;
     entity_type: string;
   }): Promise<{ message: string }> {
-    if (this.telemetryId === "") await this.ping();
     this._captureEvent("delete_user", []);
     if (!data.entity_type) {
       data.entity_type = "user";
@@ -487,8 +526,6 @@ export default class MemoryClient {
       runId?: string;
     } = {},
   ): Promise<{ message: string }> {
-    if (this.telemetryId === "") await this.ping();
-
     let to_delete: Array<{ type: string; name: string }> = [];
     const { userId, agentId, appId, runId } = params;
 
@@ -514,8 +551,14 @@ export default class MemoryClient {
 
     for (const entity of to_delete) {
       try {
-        await this.client.delete(
+        // fetch() reuses the pooled connection; axios here defaulted to
-          `/v2/entities/${encodePathSegment(entity.type)}/${encodePathSegment(entity.name)}/`,
+        // keepAlive: false, one handshake per entity.
+        await this._fetchWithErrorHandling(
+          `${this.host}/v2/entities/${encodePathSegment(entity.type)}/${encodePathSegment(entity.name)}/`,
+          {
+            method: "DELETE",
+            headers: this.headers,
+          },
         );
       } catch (error: any) {
         throw new APIError(
@@ -537,7 +580,6 @@ export default class MemoryClient {
   }
 
   async batchUpdate(memories: Array<MemoryUpdateBody>): Promise<string> {
-    if (this.telemetryId === "") await this.ping();
     this._captureEvent("batch_update", []);
     const memoriesBody = memories.map((memory) => ({
       memory_id: memory.memoryId,
@@ -555,7 +597,6 @@ export default class MemoryClient {
   }
 
   async batchDelete(memories: Array<string>): Promise<string> {
-    if (this.telemetryId === "") await this.ping();
     this._captureEvent("batch_delete", []);
     const memoriesBody = memories.map((memory) => ({
       memory_id: memory,
@@ -572,7 +613,6 @@ export default class MemoryClient {
   }
 
   async getProject(options: ProjectOptions): Promise<ProjectResponse> {
-    if (this.telemetryId === "") await this.ping();
     const payloadKeys = Object.keys(options || {});
     this._captureEvent("get_project", [payloadKeys]);
     const { fields } = options;
@@ -598,7 +638,6 @@ export default class MemoryClient {
   async updateProject(
     prompts: PromptUpdatePayload,
   ): Promise<Record<string, any>> {
-    if (this.telemetryId === "") await this.ping();
     this._captureEvent("update_project", []);
     if (!(this.organizationId && this.projectId)) {
       throw new Error(
@@ -619,7 +658,6 @@ export default class MemoryClient {
 
   // WebHooks
   async getWebhooks(data?: { projectId?: string }): Promise<Array<Webhook>> {
-    if (this.telemetryId === "") await this.ping();
     this._captureEvent("get_webhooks", []);
     const project_id = data?.projectId || this.projectId;
     const response = await this._fetchWithErrorHandling(
@@ -632,7 +670,6 @@ export default class MemoryClient {
   }
 
   async createWebhook(webhook: WebhookCreatePayload): Promise<Webhook> {
-    if (this.telemetryId === "") await this.ping();
     this._captureEvent("create_webhook", []);
     const body = {
       name: webhook.name,
@@ -653,7 +690,6 @@ export default class MemoryClient {
   async updateWebhook(
     webhook: WebhookUpdatePayload,
   ): Promise<{ message: string }> {
-    if (this.telemetryId === "") await this.ping();
     this._captureEvent("update_webhook", []);
     const body: Record<string, any> = {};
     if (webhook.name != null) body.name = webhook.name;
@@ -673,7 +709,6 @@ export default class MemoryClient {
   async deleteWebhook(data: {
     webhookId: string;
   }): Promise<{ message: string }> {
-    if (this.telemetryId === "") await this.ping();
     this._captureEvent("delete_webhook", []);
     const webhook_id = data.webhookId || data;
     const response = await this._fetchWithErrorHandling(
@@ -687,7 +722,6 @@ export default class MemoryClient {
   }
 
   async feedback(data: FeedbackPayload): Promise<{ message: string }> {
-    if (this.telemetryId === "") await this.ping();
     const payloadKeys = Object.keys(data || {});
     this._captureEvent("feedback", [payloadKeys]);
     const response = await this._fetchWithErrorHandling(
@@ -704,7 +738,6 @@ export default class MemoryClient {
   async createMemoryExport(
     data: CreateMemoryExportPayload,
   ): Promise<{ message: string; id: string }> {
-    if (this.telemetryId === "") await this.ping();
     this._captureEvent("create_memory_export", []);
 
     if (!data.filters || !data.schema) {
@@ -734,7 +767,6 @@ export default class MemoryClient {
   async getMemoryExport(
     data: GetMemoryExportPayload,
   ): Promise<{ message: string; id: string }> {
-    if (this.telemetryId === "") await this.ping();
     this._captureEvent("get_memory_export", []);
 
     if (!data.memoryExportId && !data.filters) {

mem0-ts/src/client/tests/memoryClient.users.test.ts

@@ -98,16 +98,23 @@ describe("MemoryClient - deleteUser() (deprecated)", () => {
 
 describe("MemoryClient - deleteUsers()", () => {
   test("URL-encodes entity path segments", async () => {
-    setupMockFetch();
+    const extra = new Map<string, { status: number; body: unknown }>();
+    extra.set("/v2/entities/user/org%2Fteam%3Factive%23frag/", {
+      status: 200,
+      body: { message: "Entity deleted successfully!" },
+    });
+    const mock = setupMockFetch(extra);
+
     const client = new MemoryClient({ apiKey: TEST_API_KEY });
-    client.telemetryId = "test@example.com";
-    const deleteMock = jest.fn().mockResolvedValue({});
-    client.client = { delete: deleteMock };
 
     await client.deleteUsers({ userId: "org/team?active#frag" });
 
-    expect(deleteMock).toHaveBeenCalledWith(
+    expect(
-      "/v2/entities/user/org%2Fteam%3Factive%23frag/",
+      findFetchCall(
-    );
+        mock,
+        "/v2/entities/user/org%2Fteam%3Factive%23frag/",
+        "DELETE",
+      ),
+    ).toBeDefined();
   });
 });