amitsaha / python-grpc-demo

Python + gRPC demos

Python + gRPC Demo

Please see a more recent example of gRPC interceptors as these examples are likely out of date and not working.

Demos for articles:

• https://blog.codeship.com/using-grpc-in-python/
• https://blog.codeship.com/exploring-security-metrics-and-error-handling-with-grpc-in-python/

Contents

The demos were updated last in June 2021.

Key software versions:

• Python 3.8
• gRPC 1.38

You will need docker and docker compose installed.

demo1

demo2

python-grpc-demo's Issues

Add REST support

As a web site creator
I want to be able to access the service using raw REST
In order that integrations with the similarity service can be done with no extra software libraries or dependencies

Can't find User and CreateUserResult methods in server.py file

In the server file, UsersService (inherited from users_service.UsersServicer) overrides CreateUser and GetUsers.
However, there are no methods named User and CreateUserResult in the users_types_pb2 file.
a. User and CreateUserResult are objects defined in the users_types.proto file, which are generated in .pyi files after compilation with the tool.
It seems that the methods in users_types_pb2 are not present in the .pyi file.
This is where the tool called mypy-protobuf comes into play to address this issue. mypy-protobuf generates an independent .pyi file that allows the IDE to assist in suggesting what properties this object has.

Solution：

pip install mypy-protobuf

Adding methods for using grpc-tools `--mypy_grpc_out=./gen-py --mypy_out=./gen-py

This is the executed folder：demo1\grpc-services\protos

python -m grpc_tools.protoc --proto_path=. --python_out=./gen-py --grpc_python_out=./gen-py ./users/*.proto --mypy_grpc_out=./gen-py  --mypy_out=./gen-py