asynchron response don't work

I try to setup a session with an external api after i got the ok from the API i want to respond. My function createSession Returns an Promise return new Promise( function (resolve, reject) {....

and here i want to wait until createSession is done

return createSession().then(
          function(rs){ // sucess      
              winston.log('info','... Sucessfully launched app');
              res.say('Willkommen bei Alexinator, dem Spiel das deine Gedanken lesen kann');
              winston.log('info', "... Launching successfull");
              return res.send();
          },
          function(error){
            winston.log('error', '... Launching failed!!');
          }
        );

But it doesn’t work my response answer is always empty

[dblock]

As I suspected you’re getting alexa-app 2.4.0 and not 4.0, that one doesn’t support promises the same way as the most recent version does. Upgraded, which fixed the problem, https://github.com/ZeroSoulEater/alexinator/pull/2.

[TimoPurzner]

Thank you very mush!