title: handle HTTP and gRPC request into Envoy
body: <p>Need to convert HTTP request into gRPC using Envoy. Backend micro service is working fine and it will support gRPC, but doesn't handle Http, so I need to convert request to grpc using envoy.</p>
  <p>So the benefit is, both http and gRPC can handle together. Is it possible with Envoy, if yes, how can I do the configuration in  Envoy.</p>