Interoperability

[kaaax0815]

If someones implements the Server using Rust (or any other unsupported language) without Connectrpc.
And I create a client using the normal way as if it would be a connect server. Does it work?

If I use the default obviously not. But if I specify WithGRPC would it work?

[jhump]

Yes, ConnectRPC clients speak gRPC and gRPC-Web protocols explicitly for interoperability with servers for which a native ConnectRPC protocol is unavailable. It is meant for use in mixed environments (some servers use ConnectRPC, some use gRPC) and aids migrations to ConnectRPC.

Similarly, ConnectRPC servers also speak gRPC and gRPC-Web protocols. So a Go server using this module can handle requests from clients that use gRPC implementations for other languages. (There is an exception: the "text" sub-protocol of gRPC-Web is not supported in connect-go.)

[kaaax0815]

Do you mean https://github.com/grpc/grpc-web?tab=readme-ov-file#wire-format-mode grpcwebtext ? unfortunate. so streaming over grpc web is not supported?

is there a fallback if u use the default? the default is connect but what if the server does not support it? does it then use grpc or will it error?

if communication is m2m over http2 is there a up or downside when using connect instead of grpc. as for the web its clear with proper ecma support

[kaaax0815]

answered in slack and tried by myself.

there is no fallback

efficiency should be very similar