Thrift optional type for rpc response

[Aditya Sarawgi]

Hi Everyone,

I have some questions about the way I am using thrift optional types or
rather I am not sure if this is the right way to use it. The thrift file
looks something like this

namespace something

struct Response {
 1: Status status,
 2: optional list<string> msgs

}

service Something {
  Respone getMessages(1: i16 id)
}

Now first of all I am confused by the following

1) Should optional be ever used in a response
2) If doesn't return the msgs until I do a
_return.__set_msgs(vector_of_msgs) which looks hacky to me.

Any guidance on this is much appreciated, the documentation is really
sparse.

Thanks
Aditya Sarawgi