Make it possible to retry the video recording if it fails

README.md

@@ -105,6 +105,20 @@ The `say(message: string, endCallAfterSpoken?: boolean)` can be used to invoke s
 vapi.say("Our time's up, goodbye!", true)
 ```
 
+## Recording
+
+When video recording is enabled on the call's artifact plan, Vapi starts a recording automatically when the call begins. Recording start is asynchronous: success is signaled by the `recording-started` event and failure by the `recording-error` event.
+
+A failed recording start is not retried automatically. Use `startRecording()` and `stopRecording()` to control the recording yourself. For example, to retry after a failure:
+
+```javascript
+vapi.on('recording-error', (e) => {
+  console.error('Recording failed', e);
+  // Retry after a short delay
+  setTimeout(() => vapi.startRecording(), 5000);
+});
+```
+
 ## Events
 
 You can listen to the following events:

__tests__/vapi.test.ts

@@ -9,6 +9,8 @@ describe("Vapi", () => {
     mockCall = {
       setLocalAudio: jest.fn(),
       localAudio: jest.fn(),
+      startRecording: jest.fn(),
+      stopRecording: jest.fn(),
     };
     // Initialize Vapi instance and inject the mock
     vapi = new Vapi("dummy_token");
@@ -53,4 +55,30 @@ describe("Vapi", () => {
       expect(res).toBe(false);
     });
   });
+
+  describe("startRecording", () => {
+    it("should start a recording", () => {
+      vapi.startRecording();
+      expect(mockCall.startRecording).toHaveBeenCalled();
+    });
+
+    it("should throw when call object is not available", () => {
+      vapi["call"] = null; // Simulate call object not being available
+      expect(() => vapi.startRecording()).toThrow(
+        "Call object is not available."
+      );
+    });
+  });
+
+  describe("stopRecording", () => {
+    it("should stop the recording", () => {
+      vapi.stopRecording();
+      expect(mockCall.stopRecording).toHaveBeenCalled();
+    });
+
+    it("should not throw when call object is not available", () => {
+      vapi["call"] = null; // Simulate call object not being available
+      expect(() => vapi.stopRecording()).not.toThrow();
+    });
+  });
 });

vapi.ts

@@ -705,14 +705,7 @@ export default class Vapi extends VapiEventEmitter {
         const recordingStartTime = Date.now();
 
         try {
-          this.call.startRecording({
-            width: 1280,
-            height: 720,
-            backgroundColor: '#FF1F2D3D',
-            layout: {
-              preset: 'default',
-            },
-          });
+          this.startRecording();
 
           const recordingSetupDuration = Date.now() - recordingStartTime;
           this.emit('call-start-progress', {
@@ -722,7 +715,7 @@ export default class Vapi extends VapiEventEmitter {
             timestamp: new Date().toISOString()
           });
 
-          this.call.on('recording-started', () => {
+          this.call.once('recording-started', () => {
             const totalRecordingDelay = (new Date().getTime() - recordingRequestedTime) / 1000;
             this.emit('call-start-progress', {
               stage: 'video-recording-started',
@@ -1140,6 +1133,37 @@ export default class Vapi extends VapiEventEmitter {
     this.call?.stopScreenShare();
   }
 
+  /**
+   * Starts (or retries) a cloud recording of the call.
+   *
+   * Recording start is asynchronous: success is signaled by the
+   * 'recording-started' event and failure by 'recording-error'. Daily does not
+   * retry automatically, so if you receive 'recording-error' (e.g. the
+   * recording start timed out), you can call this method again a few seconds
+   * later to retry.
+   */
+  public startRecording(): void {
+    if (!this.call) {
+      throw new Error('Call object is not available.');
+    }
+    this.call.startRecording({
+      width: 1280,
+      height: 720,
+      backgroundColor: '#FF1F2D3D',
+      layout: {
+        preset: 'default',
+      },
+    });
+  }
+
+  /**
+   * Stops the in-progress recording. Completion is signaled by the
+   * 'recording-stopped' event.
+   */
+  public stopRecording(): void {
+    this.call?.stopRecording();
+  }
+
   /**
    * Reconnects to an active call.
    * 
@@ -1418,14 +1442,7 @@ export default class Vapi extends VapiEventEmitter {
         const recordingRequestedTime = new Date().getTime();
 
         try {
-          this.call.startRecording({
-            width: 1280,
-            height: 720,
-            backgroundColor: '#FF1F2D3D',
-            layout: {
-              preset: 'default',
-            },
-          });
+          this.startRecording();
 
           const recordingSetupDuration = Date.now() - recordingStartTime;
           this.emit('call-start-progress', {
@@ -1435,7 +1452,7 @@ export default class Vapi extends VapiEventEmitter {
             timestamp: new Date().toISOString()
           });
 
-          this.call.on('recording-started', () => {
+          this.call.once('recording-started', () => {
             const totalRecordingDelay = (new Date().getTime() - recordingRequestedTime) / 1000;
             this.emit('call-start-progress', {
               stage: 'video-recording-started',