Don't create aiohttp sessions inside services

src/dailyai/services/elevenlabs_ai_service.py

@@ -9,28 +9,36 @@ from dailyai.services.ai_services import TTSService
 
 
 class ElevenLabsTTSService(TTSService):
-    def __init__(self, api_key=None, voice_id=None):
+
+    def __init__(
+        self,
+        aiohttp_session: aiohttp.ClientSession,
+        api_key=None,
+        voice_id=None,
+    ):
         super().__init__()
 
-        self.api_key = api_key or os.getenv("ELEVENLABS_API_KEY")
-        self.voice_id = voice_id or os.getenv("ELEVENLABS_VOICE_ID")
+        self._api_key = api_key or os.getenv("ELEVENLABS_API_KEY")
+        self._voice_id = voice_id or os.getenv("ELEVENLABS_VOICE_ID")
+        self._aiohttp_session = aiohttp_session
 
     async def run_tts(self, sentence) -> AsyncGenerator[bytes, None]:
-        async with aiohttp.ClientSession() as session:
-            url = f"https://api.elevenlabs.io/v1/text-to-speech/{self.voice_id}/stream"
-            payload = {"text": sentence, "model_id": "eleven_turbo_v2"}
-            querystring = {"output_format": "pcm_16000", "optimize_streaming_latency": 2}
-            headers = {
-                "xi-api-key": self.api_key,
-                "Content-Type": "application/json",
-            }
-            async with session.post(url, json=payload, headers=headers, params=querystring) as r:
-                if r.status != 200:
-                    self.logger.error(
-                        f"audio fetch status code: {r.status}, error: {r.text}"
-                    )
-                    return
+        url = f"https://api.elevenlabs.io/v1/text-to-speech/{self._voice_id}/stream"
+        payload = {"text": sentence, "model_id": "eleven_turbo_v2"}
+        querystring = {"output_format": "pcm_16000", "optimize_streaming_latency": 2}
+        headers = {
+            "xi-api-key": self._api_key,
+            "Content-Type": "application/json",
+        }
+        async with self._aiohttp_session.post(
+            url, json=payload, headers=headers, params=querystring
+        ) as r:
+            if r.status != 200:
+                self.logger.error(
+                    f"audio fetch status code: {r.status}, error: {r.text}"
+                )
+                return
 
-                async for chunk in r.content:
-                    if chunk:
-                        yield chunk
+            async for chunk in r.content:
+                if chunk:
+                    yield chunk