I want my App to send data a "variable" to a server. I read about 'GcmPubSub', but according to the documentation, the server is the side that can publishs data via a certsin topic while the App should subscripe to that topic. But in my problem it is the other way around, i want my App to publish data to a topic while the server is the side that subscribe to yhe same topic to receive data from the App.
My question is, is it possible to implement such scenario using ' GcmPubSub'? Please advice