Embedding clarification for subroutes.

[delaneyj]

Can embed grpcui in a server and its working great via

target := "localhost:4321"
cc, err := grpc.DialContext(ctx, target, grpc.WithBlock(), grpc.WithTransportCredentials(insecure.NewCredentials()))
if err != nil {
 return err
}
h, err := standalone.HandlerViaReflection(ctx, cc, target)
if err != nil {
  return err
}
router.Mount("/", h)

However I have want to mount to router.Mount("/ui", h). That doesn't work and I'm wondering if its even possible or is there parts that expect to be absolute to the root path. Any guidance would be wonderful.

[jhump]

Apologies if it's unclear, but this is mentioned briefly in the doc comments: https://pkg.go.dev/github.com/fullstorydev/grpcui@v1.3.1/standalone#Handler

The returned handler expects to serve resources from "/". If it will instead be handling a sub-path (e.g. handling "/rpc-ui/") then use http.StripPrefix.

[eqinox76]

I am also trying to host grpcui on a subroute and got some unhelpful http 301 redirects to '/'. But using http.StripPrefix correctly works fine:

mux.Handle("/ui/", http.StripPrefix("/grpc-ui", h))

Now point your Browser to http://localhost:9192//grpc-ui/