Sending metadata alongside a request

[bterwin]

I'm attempting to add additional metadata alongside my request.

An example utilizing ruby would be

response = stub.rpc_call(req, {metadata: {key1: value1, key2: value2}})

Does similar functionality exist within this library?

[Slids]

Not currently, no

[Slids]

I think #60 has most of it.
When you make the call, take the metadata, create the
grpc_metadata, but it in the grpc_metadata_struct, pass it through
to the call...