gRPC-JSON transcoder gRPC architecture overview This filter should be configured with the type URL type.googleapis.com/envoy.extensions.filters.http.grpc_json_transcoder.v3.GrpcJsonTranscoder. v3 API reference This is a filter which allows a RESTful JSON API client to send requests to Envoy over HTTP and get proxied to a gRPC service. The HTTP mapping for the gRPC service has to be defined by cus