🚀 Build gRPC services in Python 3.9+ as easily as FastAPI.
Require Python 3.9+
pip install python-fast-grpc Define a gRPC service:
from pydantic import BaseModel from fast_grpc import FastGRPC app = FastGRPC ()class HelloRequest (BaseModel ):name :str class HelloReply (BaseModel ):message :str @app .unary_unary () async def say_hello (request :HelloRequest )-> HelloReply :return HelloReply (message = f"Greeter SayHello{ request .name } )if __name__ == '__main__' :app .run ()Client Test:
import grpc import fast_grpc_pb2 as pb2 import fast_grpc_pb2_grpc as pb2_grpc channel = grpc .insecure_channel ("127.0.0.1:50051" )stub = pb2_grpc .FastGRPCStub (channel )response = stub .SayHello (pb2 .HelloRequest (name = "FastGRPC" ))print ("Client received: " ,response )@app .middleware () async def middleware (call_next ,request ,context ):print ("before request" )response = await call_next (request ,context )print ("after request" )return response @app .middleware (is_server_streaming = True ) async def middleware (call_next ,request ,context ):print ("before streaming request" )async for response in call_next (request ,context ):yield response print ("after streaming request" )Use Service for modular design, similar to FastAPI's router.
from fast_grpc import Service srv = Service (name = "Greeter" )@srv .unary_unary () async def say_again (request :HelloRequest )-> HelloReply :return HelloReply (message = f"Greeter SayHello{ request .name } )Use Pb2Service if you're working with generated *_pb2.py and *_pb2_grpc.py files.
import greeter_pb2 import greeter_pb2_grpc srv = Pb2Service ("Greeter" ,pb2_module = greeter_pb2 ,pb2_grpc_module = greeter_pb2_grpc )@srv .unary_unary () async def say_again (request :HelloRequest )-> HelloReply :return HelloReply (message = f"Greeter SayHello{ request .name } )Generate Clients Using Pydantic Automatically generate a Pydantic-based gRPC client from .proto files:
from fast_grpc .proto import proto_to_python_client proto_to_python_client ("fast_grpc.proto" )