This repo is a simple example of how to interface Rust and Python using gRPC. The Rust server is a simple service that returns an entity based on a request entity type from the client. The Python client sends a request with an entity type to the server and receives an Entity.
gRPC requires the protobuf compiler to generate the code for each language.
You can run genprotos.sh to generate the code for Python. In rust, the code is generated at compile time using the /services/rust/build.rs file.
Once the code is generated, you can run the grpc rust server with cargo run --manifest-path services/rust/Cargo.toml which will be listening on localhost:50051. You can then install the python dependencies and run the Python client with python3 services/python/client.py which will send a request to the server and print the response (I highly recommend using virtual environments for Python).
To summarize this are the steps:
- Generate the code for Python and install the dependencies
/bin/bash genprotos.sh
pip3 install -r services/python/requirements.txt- Run the Rust server and the Python client
cargo run --manifest-path services/rust/Cargo.tomlpython3 services/python/client.py