ruby: read bidi header metadata from server without reading server message first.

[Roland Rifandi Utama]

Hello

I want to read bidi header from server using ruby client without reading server first message.
This is my current code:

operation = stub.some_bidi_method(infinite_loop_enum, return_op: true)
result = operation.execute

puts operation.metadata #return nil

result.next # get first message from server (can take a long time to get)
puts operation.metadata #return header metadata from server

I can easily solve this problem using golang like this.

stream, _ := stub.SomeBidiMethod(context.Background())
md, _ := stream.Header()

Since the requirement is using ruby, do you know any workaround to get same result as golang counterpart using ruby?

Thank you very much!