custom utterance support for an alexa-app skill

custom-slot-types-support.js

var skillService = new Skill.app('myskill');
var utterancesMethod = skillService.utterances;

skillService.utterances = function() {
  return utterancesMethod().replace(/\{\-\|/g, '{');
};

skillService.intent('airportInfoIntent', {
  'slots': {
    'AIRPORTCODE': 'FAACODES'
  },
  'utterances': ['{|flight|airport} {|delay|status} {|info} {|for} {-|AIRPORTCODE}']
},
  function(req, res) {
    var airportCode = req.slot('AIRPORTCODE');
    ... skill goes here!
  }
);