feat(internal): handle streaming error (#119)

Co-authored-by: Jordan Wu <[email protected]>

src/groq/_streaming.py

@@ -9,7 +9,8 @@
 
 import httpx
 
-from ._utils import extract_type_var_from_base
+from ._utils import is_mapping, extract_type_var_from_base
+from ._exceptions import APIError
 
 if TYPE_CHECKING:
     from ._client import Groq, AsyncGroq
@@ -57,7 +58,43 @@ def __stream__(self) -> Iterator[_T]:
         for sse in iterator:
             if sse.data.startswith("[DONE]"):
                 break
-            yield process_data(data=sse.json(), cast_to=cast_to, response=response)
+
+            if sse.event is None:
+                data = sse.json()
+                if is_mapping(data) and data.get("error"):
+                    message = None
+                    error = data.get("error")
+                    if is_mapping(error):
+                        message = error.get("message")
+                    if not message or not isinstance(message, str):
+                        message = "An error occurred during streaming"
+
+                    raise APIError(
+                        message=message,
+                        request=self.response.request,
+                        body=data["error"],
+                    )
+
+                yield process_data(data=data, cast_to=cast_to, response=response)
+
+            else:
+                data = sse.json()
+
+                if sse.event == "error" and is_mapping(data) and data.get("error"):
+                    message = None
+                    error = data.get("error")
+                    if is_mapping(error):
+                        message = error.get("message")
+                    if not message or not isinstance(message, str):
+                        message = "An error occurred during streaming"
+
+                    raise APIError(
+                        message=message,
+                        request=self.response.request,
+                        body=data["error"],
+                    )
+
+                yield process_data(data={"data": data, "event": sse.event}, cast_to=cast_to, response=response)
 
         # Ensure the entire stream is consumed
         for _sse in iterator:
@@ -123,7 +160,43 @@ async def __stream__(self) -> AsyncIterator[_T]:
         async for sse in iterator:
             if sse.data.startswith("[DONE]"):
                 break
-            yield process_data(data=sse.json(), cast_to=cast_to, response=response)
+
+            if sse.event is None:
+                data = sse.json()
+                if is_mapping(data) and data.get("error"):
+                    message = None
+                    error = data.get("error")
+                    if is_mapping(error):
+                        message = error.get("message")
+                    if not message or not isinstance(message, str):
+                        message = "An error occurred during streaming"
+
+                    raise APIError(
+                        message=message,
+                        request=self.response.request,
+                        body=data["error"],
+                    )
+
+                yield process_data(data=data, cast_to=cast_to, response=response)
+
+            else:
+                data = sse.json()
+
+                if sse.event == "error" and is_mapping(data) and data.get("error"):
+                    message = None
+                    error = data.get("error")
+                    if is_mapping(error):
+                        message = error.get("message")
+                    if not message or not isinstance(message, str):
+                        message = "An error occurred during streaming"
+
+                    raise APIError(
+                        message=message,
+                        request=self.response.request,
+                        body=data["error"],
+                    )
+
+                yield process_data(data={"data": data, "event": sse.event}, cast_to=cast_to, response=response)
 
         # Ensure the entire stream is consumed
         async for _sse in iterator: