runtime.WithForwardResponseOption compile error

[zhangjie2012]

🐛 Bug Report

use runtime.NewServeMux with runtime.WithForwardResponseOption compile throw:

cannot use myFilter (type func(context.Context, http.ResponseWriter, protoreflect.ProtoMessage) error) as type func(context.Context, http.ResponseWriter, protoiface.MessageV1) error in argument to "github.com/grpc-ecosystem/grpc-gateway/runtime".WithForwardResponseOption

source code:

func myFilter(ctx context.Context, w http.ResponseWriter, resp proto.Message) error {
    return nil
}
    gwMux := runtime.NewServeMux(
        // runtime.WithIncomingHeaderMatcher(func(key string) (string, bool) {
        //  return key, true
        // }),
        // runtime.WithOutgoingHeaderMatcher(func(key string) (string, bool) {
        //  return key, true
        // }),
        runtime.WithForwardResponseOption(myFilter),
    )

Environment

• github.com/grpc-ecosystem/grpc-gateway v1.14.7
• go version go1.14.7 darwin/amd64

[johanbrandhorst]

Hi Jerry, this is a simple function signature mismatch, probably because you imported the incorrect version of the protobuf package. Maybe I could help you sort this out on our support channel on gophers slack? Join #grpc-gateway on https://invite.slack.golangbridge.org/.

[zhangjie2012]

My project used google.golang.org/protobuf/proto. gateway code used github.com/golang/protobuf/proto.

My emacs auto import package. Why gateway not consistent.

[johanbrandhorst]

You need to use the v2 release to use the new go protobuf stack.