fix(core): Make sure logs get flushed in server-runtime-client (#16222)

Actually fixes
#16110

Author: AbhiPrasad

packages/core/src/server-runtime-client.ts

@@ -52,6 +52,7 @@ export class ServerRuntimeClient<
     if (this._options._experiments?.enableLogs) {
       // eslint-disable-next-line @typescript-eslint/no-this-alias
       const client = this;
+
       client.on('flushLogs', () => {
         client._logWeight = 0;
         clearTimeout(client._logFlushIdleTimeout);
@@ -72,6 +73,10 @@ export class ServerRuntimeClient<
           }, DEFAULT_LOG_FLUSH_INTERVAL);
         }
       });
+
+      client.on('flush', () => {
+        _INTERNAL_flushLogsBuffer(client);
+      });
     }
   }
 

packages/core/test/lib/server-runtime-client.test.ts

@@ -278,5 +278,25 @@ describe('ServerRuntimeClient', () => {
       expect(sendEnvelopeSpy).not.toHaveBeenCalled();
       expect(client['_logWeight']).toBe(0);
     });
+
+    it('flushes logs when flush event is triggered', () => {
+      const options = getDefaultClientOptions({
+        dsn: PUBLIC_DSN,
+        _experiments: { enableLogs: true },
+      });
+      client = new ServerRuntimeClient(options);
+
+      const sendEnvelopeSpy = vi.spyOn(client, 'sendEnvelope');
+
+      // Add some logs
+      _INTERNAL_captureLog({ message: 'test1', level: 'info' }, client);
+      _INTERNAL_captureLog({ message: 'test2', level: 'info' }, client);
+
+      // Trigger flush event
+      client.emit('flush');
+
+      expect(sendEnvelopeSpy).toHaveBeenCalledTimes(1);
+      expect(client['_logWeight']).toBe(0); // Weight should be reset after flush
+    });
   });
 });