Add support for async grpc

qdrant_client/common/client_exceptions.py

@@ -1,8 +1,11 @@
+from grpc.aio import AioRpcError
+
+
 class QdrantException(Exception):
     """Base class"""
 
 
-class ResourceExhaustedResponse(QdrantException):
+class ResourceExhaustedResponse(QdrantException, AioRpcError):
     def __init__(self, message: str, retry_after_s: int) -> None:
         self.message = message if message else "Resource Exhausted Response"
         try:

qdrant_client/connection.py

@@ -1,5 +1,6 @@
 import asyncio
 import collections
+from inspect import iscoroutinefunction
 from typing import Any, Awaitable, Callable, Optional, Union
 
 import grpc
@@ -72,7 +73,10 @@ async def intercept_unary_unary(
         )
         next_request = next(new_request_iterator)
         response = await continuation(new_details, next_request)
-        return postprocess(response) if postprocess else response
+        if iscoroutinefunction(postprocess):
+            return await postprocess(response) if postprocess else response
+        else:
+            return postprocess(response) if postprocess else response
 
     async def intercept_unary_stream(
         self, continuation: Any, client_call_details: Any, request: Any
@@ -81,7 +85,10 @@ async def intercept_unary_stream(
             client_call_details, iter((request,)), False, True
         )
         response_it = await continuation(new_details, next(new_request_iterator))
-        return postprocess(response_it) if postprocess else response_it
+        if iscoroutinefunction(postprocess):
+            return await postprocess(response_it) if postprocess else response_it
+        else:
+            return postprocess(response_it) if postprocess else response_it
 
     async def intercept_stream_unary(
         self, continuation: Any, client_call_details: Any, request_iterator: Any
@@ -90,7 +97,10 @@ async def intercept_stream_unary(
             client_call_details, request_iterator, True, False
         )
         response = await continuation(new_details, new_request_iterator)
-        return postprocess(response) if postprocess else response
+        if iscoroutinefunction(postprocess):
+            return await postprocess(response) if postprocess else response
+        else:
+            return postprocess(response) if postprocess else response
 
     async def intercept_stream_stream(
         self, continuation: Any, client_call_details: Any, request_iterator: Any
@@ -99,7 +109,10 @@ async def intercept_stream_stream(
             client_call_details, request_iterator, True, True
         )
         response_it = await continuation(new_details, new_request_iterator)
-        return postprocess(response_it) if postprocess else response_it
+        if iscoroutinefunction(postprocess):
+            return await postprocess(response_it) if postprocess else response_it
+        else:
+            return postprocess(response_it) if postprocess else response_it
 
 
 def create_generic_client_interceptor(intercept_call: Any) -> _GenericClientInterceptor:
@@ -186,6 +199,26 @@ def header_adder_async_interceptor(
     new_metadata: list[tuple[str, str]],
     auth_token_provider: Optional[Union[Callable[[], str], Callable[[], Awaitable[str]]]] = None,
 ) -> _GenericAsyncClientInterceptor:
+    async def process_response(call: Any) -> Any:
+        try:
+            return await call
+        except grpc.aio.AioRpcError as er:
+            if er.code() == grpc.StatusCode.RESOURCE_EXHAUSTED:
+                retry_after = None
+                for item in er.trailing_metadata():
+                    if item[0] == "retry-after":
+                        try:
+                            retry_after = int(item[1])
+                        except Exception:
+                            retry_after = None
+                        break
+                reason_phrase = er.details() if er.details() else ""
+                if retry_after:
+                    raise ResourceExhaustedResponse(
+                        message=reason_phrase, retry_after_s=retry_after
+                    ) from er
+            raise
+
     async def intercept_call(
         client_call_details: grpc.aio.ClientCallDetails,
         request_iterator: Any,
@@ -211,7 +244,7 @@ async def intercept_call(
             metadata.append(("authorization", f"Bearer {token}"))
 
         client_call_details = client_call_details._replace(metadata=metadata)
-        return client_call_details, request_iterator, None
+        return client_call_details, request_iterator, process_response
 
     return create_generic_async_client_interceptor(intercept_call)