clientcompat is a tool to test the compatibility of Twirp client implementations.
clientcompat -client=<binary>
The client should be generated for the compattest.proto file found in this directory.
The client binary must accept, over stdin, a protobuf-encoded
ClientCompatMessage (defined in clientcompat.proto). This message contains a
service_address, which is the address of a reference-implementation
CompatService to talk to, a method, which specifies which RPC of the
CompatService should be called, and an embedded, proto-encoded request which
the client should send.
If the server sends an error, then the client should parse the error and write the error code string ("internal", "unauthenticated", etc) to stderr. If the server doesn't send an error, the client should encode the response message it received as protobuf and write it to stdout.
The gocompat subdirectory contains an example implementation which can be run with clientcompat to prove that the Go client implementation works.