Refactoring how we are reconnecting the STT.

src/pipecat/services/nvidia/sagemaker/stt.py

@@ -194,19 +194,31 @@ class NvidiaSageMakerSTTService(STTService):
 
     # ── Connection management ─────────────────────────────────────────────────
 
+    async def _open_client_session(self):
+        self._client = SageMakerBidiClient(
+            endpoint_name=self._endpoint_name,
+            region=self._region,
+            model_query_string=None,
+            model_invocation_path=None,
+        )
+        await self._client.start_session()
+        await self._send_session_config()
+
+    async def _close_client_session(self):
+        if self._client and self._client.is_active:
+            try:
+                await self._client.send_json({"type": "session.end"})
+            except Exception as e:
+                logger.warning(f"{self}: error sending session.end: {e}")
+            await self._client.close_session()
+        self._client = None
+
     async def _connect(self):
         logger.debug(
             f"{self}: connecting to SageMaker bidi-stream endpoint '{self._endpoint_name}'"
         )
         try:
-            self._client = SageMakerBidiClient(
-                endpoint_name=self._endpoint_name,
-                region=self._region,
-                model_query_string=None,
-                model_invocation_path=None,
-            )
-            await self._client.start_session()
-            await self._send_session_config()
+            await self._open_client_session()
             self._response_task = self.create_task(self._process_responses())
             logger.debug(f"{self}: connected")
             await self._call_event_handler("on_connected")
@@ -219,19 +231,13 @@ class NvidiaSageMakerSTTService(STTService):
         if self._response_task and not self._response_task.done():
             await self.cancel_task(self._response_task)
             self._response_task = None
-
-        if self._client and self._client.is_active:
-            logger.debug(f"{self}: disconnecting")
-            try:
-                await self._client.send_json({"type": "session.end"})
-            except Exception as e:
-                logger.warning(f"{self}: error sending session.end: {e}")
-            await self._client.close_session()
-            logger.debug(f"{self}: disconnected")
-
-        self._client = None
+        await self._close_client_session()
         await self._call_event_handler("on_disconnected")
 
+    async def _do_reconnect(self):
+        await self._close_client_session()
+        await self._open_client_session()
+
     async def _send_session_config(self):
         """Send transcription_session.update to configure audio format and params.
 
@@ -333,8 +339,7 @@ class NvidiaSageMakerSTTService(STTService):
                 ):
                     await self.push_error(error_msg=f"NIM ASR error: {msg}")
                     # In case of error we need to reconnect, otherwise we are not going to receive from the STT service anymore
-                    await self._disconnect()
-                    await self._connect()
+                    await self._request_reconnect()
 
         except asyncio.CancelledError:
             logger.debug(f"{self}: response processor cancelled")