Possible to support other codec?

Currently I am looking at code first gRPC with JSON as payload instead of protobuf.

For example: https://grpc.io/blog/grpc-with-json/

But soon realise I can't find tooling to test my application unless I rollout my own.

**Question**: is it possible for `grpcurl` to be tweaked to support other payload type other than protobuf? The user interface is pretty much same because we get json input anyway.

Or is this quite a big change won't be in the roadmap?

Start by tracing grpcurl’s current protobuf payload handling and reading the linked gRPC-with-JSON example. The issue names no files or tests, so clarify which non-protobuf payloads and compatibility requirements are in scope with maintainers. Done would require an agreed implementation plan and validation for the supported payload type.

Written by the indexing model from the issue text.