shaeberling / retrostore-c-sdk

The RetroStore C SDK

retrostore-c-sdk

The RetroStore C/C++ SDK

Updating/generating protocol buffer files

First, make sure you have the Protocol Buffer Compiler installed: https://github.com/protocolbuffers/protobuf#protocol-compiler-installation

Second, checkout the nanopb project: https://github.com/nanopb/nanopb.

The source of truth Protocol Buffer is in the JVM project, here. Make sure to check out the project as well, or at least get that file.

1. Generate the binary pb file from the original proto: protoc -o ApiProtos.pb ApiProtos.proto

2. Then install the C and header file: python [your path to]/generator/nanopb_generator.py ApiProtos.pb Which will write two output files: ApiProtos.pb.h and ApiProtos.pb.c

3. Copy these files into the proto source subdirectory in this project. We will not need the binary ApiProtos.pb file anymore.

4. You might have to change the import of pb.h in the ApiProtos.pb.c file.

C++ RetroStore API

The C++ RetroStore API has the following features:

• Uses nanopb to be extremely memory efficient so it can easily be used in projects that run on microprocessors, such as the ESP32.
• Has a DataFetcher API so that projects can easily provide their own way of fetching the data from RetroStore, depending on which APIs are available.

Example

See https://github.com/shaeberling/retrostore-sdk-esp32-example for an example on how to use this in your ESP32 project.