AskMusicPreference.js

function askMusicPreferences(answer, convo, bot) {
    myDialog.ask('What would like to hear?', [
        {
            pattern: '.*',
            handler: async (response, convo, bot, message) => {
                try {
                    var channels = await YoutubeHelper.getChannel(response);

                    if (channels.length == 0) {

                        await bot.say('No items found.');
                    }
                    else {
                        for (i = 0; i < channels.length; i++) {
                            var videoURL = "https://www.youtube.com/watch?v=" + channels[i].id.videoId;
                            //facebook template formed as per https://developers.facebook.com/docs/messenger-platform/send-messages/template/generic

                            await bot.say({
                                channelData: { //need to send attachments with channeldata https://dev4slack.slack.com/archives/C0AV5N8NA/p1563790610005000
                                    attachment: {
                                        "type": "template",
                                        "payload": {
                                            "template_type": "generic",
                                            "elements": [
                                                {
                                                    "title": "Youtube Video!",
                                                    "image_url": "https://petersfancybrownhats.com/company_image.png",
                                                    "subtitle": "Your choice of video",
                                                    "default_action": {
                                                        "type": "web_url",
                                                        "url": videoURL,
                                                        "webview_height_ratio": "tall",
                                                    },

                                                }
                                            ]
                                        }
                                    }
                                }
                            });
                        }
                    }

                } catch (error) {
                    console.log('error occurred ', error);
                }
            }
        }
    ], { key: 'name' });
}