protobuf enumerated values now returned as strings instead of numbers.

[rlmcpherson]

Previously, at least on commit id b94f713 (2016-2-18), enumerated values were returned in http responses as numbers. Now they are returned as the strings corresponding to those values. While this is better behavior, it is also a breaking change. Is there any way to disable this behavior while still updating to the latest version of the package? When was this change introduced?

I suspect that this may have to do with the move to jsonpb by default but setting the ServeMux option to use the built-in Marshaler for json does not appear to have any effect. Is there a workaround for this issue?

[yugui]

You can use a custom instance of JSONPb marshaler and pass it as an option when you instantiate Mux.

m := &runtime.JSONPb{
  OrigName: true,
  EnumsAsInts: true,
}
mux := runtime.NewServeMux(runtime.WithMarshalerOption("application/json", m))
...

[achew22]

@rlmcpherson, I'm going to mark this issue as closed. If there is any more information you need, please feel free to reopen it.

@yugui, thank you for getting this one.