Step by Step Implement Simple Sample of gRPC Connection: Android as Client and Python as Server

I follow the steps in the gRPC documents and record my steps in this article.

1. Define your proto file and place it under your Android Java Client project folder.

2. Using python module “grpcio” and “grpcio-tools” to generate your python server configuration and protocol objects.

3. Set up Python Server

In the last step, we generated two files, *_pb2.py and *_pb2_grpc.py, which contained objects of python gRPC protocol and settings. In the purpose of using them in a clean way, we’ll define a new server object and set up a server folder.

Python_gRPC_Server

• interaction_pb2.py
• interaction_pb2_grpc.py
• InteracterServer.py

Define Server which maintains the connection settings and API usage.

• run.py

Here we could use the APIs and add other services

4. Set up Android Java Client

(Please notify TAG “// <!Edit Here> — />” in the files below.)

• Import gRPC to Global Gradle

• Import gRPC to APP Gradle

• Add Network permission

• Setup UI

• Setup Android gRPC Client Connection

• Setup Protocol setters and getters

Check out my GitHub ~