# Protocol Buffer and gRPC definitions

Definitions for Tinode [gRPC](https://grpc.io/) client and plugins.

Tinode gRPC clients must implement rpc service `Node`, Tinode plugins `Plugin`.

Generated `Go` and `Python` code is included. For a sample `Python` implementation of a command line client see [tn-cli](../tn-cli/).
For a partial plugin implementation see [chatbot](../chatbot/).

If you want to make changes, you have to install protobuffers tool chain and gRPC:
```
$ python -m pip install grpcio grpcio-tools googleapis-common-protos
```

To generate `Go` bindings add the following comment to your code and run `go generate` (your actual path to `/pbx` may be different):
```
//go:generate protoc --proto_path=../pbx --go_out=plugins=grpc:../pbx ../pbx/model.proto
```

To generate `Python` bindings:
```
python -m grpc_tools.protoc -I../pbx --python_out=. --grpc_python_out=. ../pbx/model.proto
```