Alexa: Azure function

module.exports = function (context, req) {
    context.log('Call: ' + JSON.stringify(req));

    let action = req.body.request.intent.slots.action ?
                 req.body.request.intent.slots.action.value : 'Unknown';

    let device = req.body.request.intent.slots.device ?
                 req.body.request.intent.slots.device.value : 'Unknown';

    let message = 'Action is ' + action + ' and device is ' + device;

    let response = {
        "version": "string",
        "sessionAttributes": {
            "key": "value"
        },
        "response": {
            "outputSpeech": {
            "type": "PlainText",
            "text": message
            },
            "card": {
            "type": "Standard",
            "title": "Test",
            "content": "This is just a simple card",
            "text": "Do you see any Teletubbies in here? Do you see a slender plastic tag clipped to my shirt with my name printed on it? Do you see a little Asian child with a blank expression on his face sitting outside on a mechanical helicopter that shakes when you put quarters in it? No? Well, that's what you see at a toy store. And you must think you're in a toy store, because you're here shopping for an infant named Jeb.",
            "image": {
                "smallImageUrl": "https://s3.amazonaws.com/imgserv.ownlocal.com/pets-and-animals/pet-care/pet-care01-640x480%3E.jpg",
                "largeImageUrl": "https://metrouk2.files.wordpress.com/2017/03/pets-e1490696661315.jpg"
            }
            },
            "shouldEndSession": true
        }
    };

    context.res = {
        status: 200,
        body: response
    };

    context.done();
};