# Jina Protobuf Specification¶

For developers who want to change the protobuf specification, one needs to first edit jina/proto/jina.proto and then use jina/proto/build-proto.sh to regenerate the python interfaces (i.e. jina/proto/jina_pb2.py and jina/proto/jina_pb2_grpc.py).

Tip

We provide a Docker image for you to generate Protobuf interface in the containerized environment. That means you don’t need to config the build protobuf/grpc environment locally. Simply use

docker run -v $(pwd)/jina/proto:/jina/proto jinaai/protogen  where $(pwd) is your Jina repository root.