gRPCAlchemy

The Python micro framework for building gPRC application based on official gRPC project.

• Free software: MIT license
• Documentation: https://grpcalchemy.readthedocs.io.

Installation

$ pipenv install grpcalchemy
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Only Python 3.6+ is supported.

Example

Server

from grpcalchemy.orm import Message, StringField
from grpcalchemy import Server, Context, grpcmethod

class HelloMessage(Message):
    text: str

class HelloService(Server):
    @grpcmethod
    def Hello(self, request: HelloMessage, context: Context) -> HelloMessage:
        return HelloMessage(text=f'Hello {request.text}')

if __name__ == '__main__':
    HelloService.run()

Then Using gRPC channel to connect the server:

from grpc import insecure_channel

from protos.helloservice_pb2_grpc import HelloServiceStub
from protos.hellomessage_pb2 import HelloMessage

with insecure_channel("localhost:50051") as channel:
    response = HelloServiceStub(channel).Hello(
        HelloMessage(text="world")
    )

Features

• gPRC Service Support

• gRPC Message Support

  • Scalar Value Types
  • Message Types
  • Repeated Field
  • Maps

• Define Message With Type Hint
• Middleware
• App Context Manger
• Error Handler Support
• Streaming Method Support
• gRPC-Health Checking and Reflection Support (Alpha)
• Multiple Processor Support

TODO

• Test Client Support
• Async Server Support