gRPCgRPC

syntax = "proto3";

service UserService {
    rpc GetUser (UserRequest) returns (UserResponse);
    rpc ListUsers (ListRequest) returns (stream UserResponse);
}

message UserRequest {
    int32 id = 1;
}

message UserResponse {
    int32 id = 1;
    string name = 2;
    string email = 3;
}

# 서버
class UserServicer(user_pb2_grpc.UserServiceServicer):
    def GetUser(self, request, context):
        return user_pb2.UserResponse(
            id=request.id,
            name="Alice",
            email="alice@example.com"
        )

# 클라이언트
with grpc.insecure_channel('localhost:50051') as channel:
    stub = user_pb2_grpc.UserServiceStub(channel)
    response = stub.GetUser(user_pb2.UserRequest(id=1))
    print(response.name)  # Alice