Implementing our Skill

alexa.js

var express = require('express');
var bodyParser = require('body-parser');
var cors = require('cors');

const LambdaMockContext = require('aws-lambda-mock-context');
const Alexa = require('alexa-sdk');

function alexaRoute() {
    var alexa = new express.Router();
    alexa.use(cors());
    alexa.use(bodyParser());

    alexa.post('/', function (request, response) {

        var lambdaCtx = LambdaMockContext();

        const handlers = {
            'HelloWorldIntent': function () {
                this.emit(':tell', 'From Red Hat Mobile: Hello World!');
            },
            'AMAZON.HelpIntent': function () {
                this.emit(':tell', 'How can I help you?');
            },
            'AMAZON.StopIntent': function () {
                this.emit(':tell', 'Cheers!');
            },
            'AMAZON.CancelIntent': function () {
                this.emit(':tell', 'Cheers!');
            },
            'SessionEndedRequest': function () {
                this.emit(':tell', 'Good Bye!');
            },
            'Unhandled': function () {
                this.emit(':tell', 'What\'s up?');
            },
        };

        var alexa = Alexa.handler(request.body, lambdaCtx);
        alexa.registerHandlers(handlers);
        alexa.execute();

        lambdaCtx.Promise
            .then(resp => { return response.status(200).json(resp); })
            .catch(err => { console.log(err); })

    });

    return alexa;
}

module.exports = alexaRoute;