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app.js
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app.js
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/*
* Copyright 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the license found in the
* LICENSE file in the root directory of this source tree.
*
*/
/* jshint node: true, devel: true */
'use strict';
const
bodyParser = require('body-parser'),
config = require('config'),
crypto = require('crypto'),
express = require('express'),
https = require('https'),
request = require('request'),
userDb = require('./db/user.js'),
postDb = require('./db/post.js'),
messageDb = require('./db/message.js'),
reportDb = require('./db/report.js');
const REPORT_RESPONSE_MESSAGE = "\n\nCan you please provide us the following details: \n - Time \n - Date of incident \n - Location \n - Description of event. \n\nAlso, Upload as many pictures as necessary. \n\nDo provide us your mobile number in case we need to contact you for further details. \n\n** Disclaimer: \nPlease be assured that the information you provide will not be published publicly but will be handled only by relevant authorities.";
const DEFAULT_POST_IMAGE = "http://copyrightuser.org/wp-content/uploads/2013/04/newsreporting.jpg";
const MESSAGE_GUIDE_MENU = "I can do 2 things at this point: \n\n1. Keep you updated on the latest news and events on human trafficking.\n2. Forward your reports of any human trafficking event to the right authorities.\n";
var app = express();
app.set('port', process.env.PORT || 5000);
app.set('view engine', 'ejs');
app.use(bodyParser.json({ verify: verifyRequestSignature }));
app.use(express.static('public'));
/*
* Be sure to setup your config values before running this code. You can
* set them using environment variables or modifying the config file in /config.
*
*/
var async = require('asyncawait/async');
var await = require('asyncawait/await');
// App Secret can be retrieved from the App Dashboard
const APP_SECRET = (process.env.MESSENGER_APP_SECRET) ?
process.env.MESSENGER_APP_SECRET :
config.get('appSecret');
// Arbitrary value used to validate a webhook
const VALIDATION_TOKEN = (process.env.MESSENGER_VALIDATION_TOKEN) ?
(process.env.MESSENGER_VALIDATION_TOKEN) :
config.get('validationToken');
// Generate a page access token for your page from the App Dashboard
const PAGE_ACCESS_TOKEN = (process.env.MESSENGER_PAGE_ACCESS_TOKEN) ?
(process.env.MESSENGER_PAGE_ACCESS_TOKEN) :
config.get('pageAccessToken');
// URL where the app is running (include protocol). Used to point to scripts and
// assets located at this address.
const SERVER_URL = (process.env.SERVER_URL) ?
(process.env.SERVER_URL) :
config.get('serverURL');
if (!(APP_SECRET && VALIDATION_TOKEN && PAGE_ACCESS_TOKEN && SERVER_URL)) {
console.error("Missing config values");
process.exit(1);
}
/*
* Use your own validation token. Check that the token used in the Webhook
* setup is the same token used here.
*
*/
app.get('/webhook', function(req, res) {
if (req.query['hub.mode'] === 'subscribe' &&
req.query['hub.verify_token'] === VALIDATION_TOKEN) {
console.log("Validating webhook");
res.status(200).send(req.query['hub.challenge']);
} else {
console.error("Failed validation. Make sure the validation tokens match.");
res.sendStatus(403);
}
});
/*
* All callbacks for Messenger are POST-ed. They will be sent to the same
* webhook. Be sure to subscribe your app to your page to receive callbacks
* for your page.
* https://developers.facebook.com/docs/messenger-platform/product-overview/setup#subscribe_app
*
*/
app.post('/webhook', async (function (req, res) {
var data = req.body;
// Make sure this is a page subscription
if (data.object == 'page') {
// Iterate over each entry
// There may be multiple if batched
data.entry.forEach(function(pageEntry) {
var pageID = pageEntry.id;
var timeOfEvent = pageEntry.time;
// Iterate over each messaging event
pageEntry.messaging.forEach(function(messagingEvent) {
if (messagingEvent.optin) {
receivedAuthentication(messagingEvent);
} else if (messagingEvent.message) {
receivedMessage(messagingEvent);
} else if (messagingEvent.delivery) {
receivedDeliveryConfirmation(messagingEvent);
} else if (messagingEvent.postback) {
receivedPostback(messagingEvent);
} else if (messagingEvent.read) {
receivedMessageRead(messagingEvent);
} else if (messagingEvent.account_linking) {
receivedAccountLink(messagingEvent);
} else {
console.log("Webhook received unknown messagingEvent: ", messagingEvent);
}
});
});
// Assume all went well.
//
// You must send back a 200, within 20 seconds, to let us know you've
// successfully received the callback. Otherwise, the request will time out.
return res.sendStatus(200);
}
}));
/*
* This path is used for account linking. The account linking call-to-action
* (sendAccountLinking) is pointed to this URL.
*
*/
app.get('/authorize', function(req, res) {
var accountLinkingToken = req.query.account_linking_token;
var redirectURI = req.query.redirect_uri;
// Authorization Code should be generated per user by the developer. This will
// be passed to the Account Linking callback.
var authCode = "1234567890";
// Redirect users to this URI on successful login
var redirectURISuccess = redirectURI + "&authorization_code=" + authCode;
res.render('authorize', {
accountLinkingToken: accountLinkingToken,
redirectURI: redirectURI,
redirectURISuccess: redirectURISuccess
});
});
/*
* Verify that the callback came from Facebook. Using the App Secret from
* the App Dashboard, we can verify the signature that is sent with each
* callback in the x-hub-signature field, located in the header.
*
* https://developers.facebook.com/docs/graph-api/webhooks#setup
*
*/
function verifyRequestSignature(req, res, buf) {
var signature = req.headers["x-hub-signature"];
if (!signature) {
// For testing, let's log an error. In production, you should throw an
// error.
console.error("Couldn't validate the signature.");
} else {
var elements = signature.split('=');
var method = elements[0];
var signatureHash = elements[1];
var expectedHash = crypto.createHmac('sha1', APP_SECRET)
.update(buf)
.digest('hex');
if (signatureHash != expectedHash) {
throw new Error("Couldn't validate the request signature.");
}
}
}
/*
* Authorization Event
*
* The value for 'optin.ref' is defined in the entry point. For the "Send to
* Messenger" plugin, it is the 'data-ref' field. Read more at
* https://developers.facebook.com/docs/messenger-platform/webhook-reference/authentication
*
*/
function receivedAuthentication(event) {
var senderID = event.sender.id;
var recipientID = event.recipient.id;
var timeOfAuth = event.timestamp;
// The 'ref' field is set in the 'Send to Messenger' plugin, in the 'data-ref'
// The developer can set this to an arbitrary value to associate the
// authentication callback with the 'Send to Messenger' click event. This is
// a way to do account linking when the user clicks the 'Send to Messenger'
// plugin.
var passThroughParam = event.optin.ref;
console.log("Received authentication for user %d and page %d with pass " +
"through param '%s' at %d", senderID, recipientID, passThroughParam,
timeOfAuth);
// When an authentication is received, we'll send a message back to the sender
// to let them know it was successful.
sendTextMessage(senderID, "Authentication successful");
}
/*
* Message Event
*
* This event is called when a message is sent to your page. The 'message'
* object format can vary depending on the kind of message that was received.
* Read more at https://developers.facebook.com/docs/messenger-platform/webhook-reference/message-received
*
* For this example, we're going to echo any text that we get. If we get some
* special keywords ('button', 'generic', 'receipt'), then we'll send back
* examples of those bubbles to illustrate the special message bubbles we've
* created. If we receive a message with an attachment (image, video, audio),
* then we'll simply confirm that we've received the attachment.
*
*/
var receivedMessage = async (function(event) {
var senderID = event.sender.id;
var recipientID = event.recipient.id;
var timeOfMessage = event.timestamp;
var message = event.message;
console.log("Received message for user %d and page %d at %d with message:",
senderID, recipientID, timeOfMessage);
console.log(JSON.stringify(message));
var isEcho = message.is_echo;
var messageId = message.mid;
var appId = message.app_id;
var metadata = message.metadata;
// You may get a text or attachment but not both
var messageText = message.text;
var messageAttachments = message.attachments;
var quickReply = message.quick_reply;
if (isEcho) {
// Just logging message echoes to console
console.log("Received echo for message %s and app %d with metadata %s",
messageId, appId, metadata);
return;
} else if (quickReply) {
var quickReplyPayload = quickReply.payload;
console.log("Quick reply for message %s with payload %s",
messageId, quickReplyPayload);
sendTextMessage(senderID, "Quick reply tapped");
return;
}
//Get user details from db
var dbUsers = await(userDb.getUser(senderID));
var dbUser = {};
if (dbUsers.length > 0) {
dbUser = dbUsers[0];
} else {
await(userDb.insertUser(senderId));
dbUser = await(userDb.getUser(senderID))[0];
}
if (messageText) {
// If we receive a text message, check to see if it matches any special
// keywords and send back the corresponding example. Otherwise, just echo
// the text we received.
var textChecker = messageText.toLowerCase();
if (Object.keys(dbUser).length > 0 && dbUser.isReporting) {
switch(textChecker) {
case "end":
userDb.updateUserState(senderID, 0);
sendLatestReport(senderID);
sendTextMessage(senderID, "All information you reported had been noted down.");
break;
default:
var msgReplied = [
"Ok. I'm listening...",
"Pen and paper are ready.",
"I'm here to listen.",
"Continue.",
];
messageDb.insertMessage(dbUser.isReporting, messageText, messageDb.TYPE_TEXT);
var min = Math.ceil(0);
var max = Math.floor(msgReplied.length);
const msgIndex = Math.floor(Math.random() * (max - min + 1)) + min;
sendTextMessage(senderID, msgReplied[msgIndex]);
break;
};
return;
} else if (dbUser.role === userDb.ROLE_MODERATOR ) {
if (dbUser.isPosting) {
var postDetails = await(postDb.getPostDetails(dbUser.isPosting));
if (postDetails.length > 0) {
var post = postDetails[0];
if (!post.title) {
postDb.updatePostTitle(post.id, messageText);
sendTextMessage(senderID, "Please provide link of the post as well");
} else if (!post.link) {
postDb.updatePostLink(post.id, messageText);
sendTextMessage(senderID, "Include some description as well. (Type SKIP to skip this step)");
} else if (!post.description) {
if (textChecker === 'skip') {
postDb.updatePostDescription(post.id, "No description");
} else {
postDb.updatePostDescription(post.id, messageText);
}
sendTextMessage(senderID, "Latly, to improve engagement, please include ONE cover image for the post. (Type SKIP to skip this step)");
} else if (!post.imageUrl) {
if (textChecker === 'skip') {
postDb.updatePostImage(post.id, DEFAULT_POST_IMAGE);
} else {
postDb.updatePostImage(post.id, messageText);
}
sendTextMessage(senderID, "Thank you. Your post is being recorded. Do you want to broadcast it now? (YES or LATER)");
} else {
if (textChecker === 'yes') {
broadcastToAllUser();
showMenu(senderID, "Your post is being broadcasted.");
} else {
showMenu(senderID, "Sure. You can always broadcast from this menu anytime later.");
}
userDb.updateUserIsPosting(senderID, 0); // reset isPosting state
}
} else {
userDb.updateUserIsPosting(senderID, 0); // reset isPosting state
}
return ;
}
}
// Default action
switch (textChecker) {
case 'list':
sendList(senderID);
break;
case 'image':
sendImageMessage(senderID);
break;
case 'gif':
sendGifMessage(senderID);
break;
case 'audio':
sendAudioMessage(senderID);
break;
case 'video':
sendVideo(senderID);
break;
case 'file':
sendFileMessage(senderID);
break;
case 'menu':
showMenu(senderID, "What can I do for you?");
break;
case 'generic':
sendGenericMessage(senderID);
break;
case 'more picture':
sendMultipleImages(senderID);
break;
case 'event':
sendTextMessage(senderID, "https://www.facebook.com/events/419524075069645/");
break;
case 'receipt':
sendReceiptMessage(senderID);
break;
case 'quick reply':
sendQuickReply(senderID);
break;
case 'read receipt':
sendReadReceipt(senderID);
break;
case 'typing on':
sendTypingOn(senderID);
break;
case 'typing off':
sendTypingOff(senderID);
break;
case 'account linking':
sendAccountLinking(senderID);
break;
case 'report':
console.log(event.message);
forwardMessage(senderID, event.message);
break;
case 'show':
sendLatestPost(senderID);
break;
case 'show report':
sendLatestReport(senderID);
break;
case 'hey':
getUserInfo(senderID).then(
function (response) {
sendTextMessage(senderID, "hey " + response["first_name"]);
}
);
break;
case 'post':
if (dbUser.role !== userDb.ROLE_MODERATOR) {
showMenu(senderID, "What can I do for you?");
} else {
postDb.insertPost(senderID);
sendTextMessage(senderID, "OK. You will need to first provide the title of the post.");
}
break;
default:
showMenu(senderID, MESSAGE_GUIDE_MENU);
break;
}
} else if (messageAttachments) {
messageAttachments.forEach(function (messageAttachment) {
switch (messageAttachment.type) {
case "image":
if (dbUser.isReporting > 0) {
messageDb.insertMessage(dbUser.isReporting, messageAttachment.payload.url, messageDb.TYPE_IMAGE);
}
break;
default:
const msg = "Message with attachment received."
sendTextMessage(senderID, msg);
}
});
}
return ;
});
function getUserInfo(userId, field) {
return callUserProfileAPI(userId).then(
function(userProfile){
console.log(userProfile);
return userProfile;
});
}
/*
* Delivery Confirmation Event
*
* This event is sent to confirm the delivery of a message. Read more about
* these fields at https://developers.facebook.com/docs/messenger-platform/webhook-reference/message-delivered
*
*/
function receivedDeliveryConfirmation(event) {
var senderID = event.sender.id;
var recipientID = event.recipient.id;
var delivery = event.delivery;
var messageIDs = delivery.mids;
var watermark = delivery.watermark;
var sequenceNumber = delivery.seq;
if (messageIDs) {
messageIDs.forEach(function(messageID) {
console.log("Received delivery confirmation for message ID: %s",
messageID);
});
}
console.log("All message before %d were delivered.", watermark);
}
var broadcastToAllUser = async(function () {
var users = await(userDb.getAllNormalUser());
users.forEach(function (user) {
sendLatestPost(user.facebookId);
});
});
/*
* Postback Event
*
* This event is called when a postback is tapped on a Structured Message.
* https://developers.facebook.com/docs/messenger-platform/webhook-reference/postback-received
*
*/
function receivedPostback(event) {
var senderID = event.sender.id;
var recipientID = event.recipient.id;
var timeOfPostback = event.timestamp;
// The 'payload' param is a developer-defined field which is set in a postback
// button for Structured Messages.
var payload = event.postback.payload;
console.log("Received postback for user %d and page %d with payload '%s' " +
"at %d", senderID, recipientID, payload, timeOfPostback);
// When a postback is called, we'll send a message back to the sender to
// let them know it was successful
switch (payload) {
case "GET_STARTED":
userDb.insertUser(senderID);
showMenu(senderID, MESSAGE_GUIDE_MENU);
break;
case "LATEST_NEWS_EVENT":
sendLatestPost(senderID);
break;
case "REPORT":
showReportCategory(senderID);
break;
case "POST_NEWS_EVENT":
showPostNewsEventCategory(senderID);
break;
case reportDb.REPORT_TYPE_SEX:
case reportDb.REPORT_TYPE_DOMESTIC:
case reportDb.REPORT_TYPE_OTHERS:
case reportDb.REPORT_TYPE_EVENT:
case reportDb.REPORT_TYPE_NEWS:
createNewReport(senderID, payload);
break;
case "BROADCAST":
broadcastToAllUser();
showMenu(senderID, "Your post is being broadcasted.");
break;
case "POST_REPORTS_NEWS_EVENTS":
postDb.insertPost(senderID);
sendTextMessage(senderID, "OK. You will need to first provide the title of the post.");
break;
default:
sendTextMessage(senderID, "Postback called");
break;
}
}
/*
* Message Read Event
*
* This event is called when a previously-sent message has been read.
* https://developers.facebook.com/docs/messenger-platform/webhook-reference/message-read
*
*/
function receivedMessageRead(event) {
var senderID = event.sender.id;
var recipientID = event.recipient.id;
// All messages before watermark (a timestamp) or sequence have been seen.
var watermark = event.read.watermark;
var sequenceNumber = event.read.seq;
console.log("Received message read event for watermark %d and sequence " +
"number %d", watermark, sequenceNumber);
}
/*
* Account Link Event
*
* This event is called when the Link Account or UnLink Account action has been
* tapped.
* https://developers.facebook.com/docs/messenger-platform/webhook-reference/account-linking
*
*/
function receivedAccountLink(event) {
var senderID = event.sender.id;
var recipientID = event.recipient.id;
var status = event.account_linking.status;
var authCode = event.account_linking.authorization_code;
console.log("Received account link event with for user %d with status %s " +
"and auth code %s ", senderID, status, authCode);
}
function formatReportMessages (messages) {
var images = [];
var formattedMessage = 'There is a new ' + messages[0].reportType.toLowerCase() + ' #' + messages[0].reportId + '. Please review and reply POST [post link] to accept this report: \n\n';
var splittedMessages = [];
messages.forEach(function (message) {
if (message.type === messageDb.TYPE_IMAGE) {
images.push(message.text);
formattedMessage += '>> [image-' + images.length.toString() + ']\n\n';
} else {
formattedMessage += '>> ' + message.text + '\n\n';
}
});
for(var i = 0; i < formattedMessage.length; i+=639) {
splittedMessages.push(formattedMessage.substr(i, 639));
};
return {splittedMessages, images};
}
var sendLatestReport = async(function (senderId) {
var messages = await(messageDb.getLatestUserReportMessage(senderId));
var moderators = await(userDb.getModeratorUsers());
if (moderators.length > 0 && messages.length > 0) {
var newMessages = formatReportMessages(messages);
var moderatorId = moderators[0].facebookId;
newMessages.splittedMessages.forEach(function (message) {
sendTextMessage(moderatorId, message);
});
if (newMessages.images.length > 0) {
var images = newMessages.images;
for(var i = 0; i < newMessages.images.length; i++) {
images[i] = mapReportImageToGenericTemplate(images[i]);
}
sendGenericMessage(moderatorId, images);
}
} else {
console.warn('No moderator found or report is empty');
}
});
function mapReportImageToGenericTemplate(image) {
var template = {
title: 'Report Image',
item_url: image,
image_url: image,
};
return template;
}
function mapPostToGenericTemplate(post) {
var template = {
title: post.title,
item_url: post.link,
image_url: post.imageUrl ? post.imageUrl : '',
subtitle: post.description,
buttons: [{
type: "element_share"
}],
};
return template;
}
var sendLatestPost = async (function(recipientId) {
var posts = await(postDb.getLatestPost());
if (posts.length > 0) {
for (var i = 0; i < posts.length; i++) {
posts[i] = mapPostToGenericTemplate(posts[i]);
};
return sendGenericMessage(recipientId, posts);
} else {
return sendTextMessage(recipientId, 'There is currently no news or event posted.')
}
});
var createNewReport = async (function (reporterId, payload) {
switch (payload) {
case reportDb.REPORT_TYPE_SEX:
case reportDb.REPORT_TYPE_DOMESTIC:
case reportDb.REPORT_TYPE_OTHERS:
const msg = "Thank you for reporting a case on "+ payload +" Trafficking. " + REPORT_RESPONSE_MESSAGE + "\n\nTo end reporting, type \"END\"";
sendTextMessage(reporterId, msg);
var report = await(reportDb.insertReport(reporterId, payload));
userDb.updateUserState(reporterId, report.insertId);
break;
case reportDb.REPORT_TYPE_EVENT:
case reportDb.REPORT_TYPE_NEWS:
const msgEvent = "Thanks for contributing. Please provide us your " + payload + " details. \n\nFor ending the submission, type \"END\"";
sendTextMessage(reporterId, msgEvent);
var report = await(reportDb.insertReport(reporterId, payload));
userDb.updateUserState(reporterId, report.insertId);
break;
default:
showMenu(reporterId, "Hmm, sorry. I don't get what you mean. See what can I help you?");
break;
}
});
var getUserCurrentState = async (function (reporterId) {
var user = await(userDb.getUser(reporterId));
console.log(user);
return user[0].isReporting;
});
/*
* Send an image using the Send API.
*
*/
function sendImageMessage(recipientId) {
var messageData = {
recipient: {
id: 1539856399445843
},
message: {
attachment: {
type: "image",
payload: {
url: "https://scontent.xx.fbcdn.net/v/t34.0-12/20401294_1737668292928041_72363331_n.jpg?_nc_ad=z-m&oh=0e783bf5b528b9bf0e8adcae98925649&oe=597AC054"
// url: "http://cdn1-www.dogtime.com/assets/uploads/gallery/30-impossibly-cute-puppies/impossibly-cute-puppy-2.jpg"
// url: SERVER_URL + "/assets/rift.png"
}
}
}
};
callSendAPI(messageData);
}
/*
* Send a Gif using the Send API.
*
*/
function sendGifMessage(recipientId) {
var messageData = {
recipient: {
id: recipientId
},
message: {
attachment: {
type: "image",
payload: {
url: SERVER_URL + "/assets/instagram_logo.gif"
}
}
}
};
callSendAPI(messageData);
}
/*
* Send audio using the Send API.
*
*/
function sendAudioMessage(recipientId) {
var messageData = {
recipient: {
id: recipientId
},
message: {
attachment: {
type: "audio",
payload: {
url: SERVER_URL + "/assets/sample.mp3"
}
}
}
};
callSendAPI(messageData);
}
/*
* Send a video using the Send API.
*
*/
function sendVideoMessage(recipientId) {
var messageData = {
recipient: {
id: recipientId
},
message: {
attachment: {
type: "video",
payload: {
url: SERVER_URL + "/assets/allofus480.mov"
}
}
}
};
callSendAPI(messageData);
}
/*
* Send a file using the Send API.
*
*/
function sendFileMessage(recipientId) {
var messageData = {
recipient: {
id: recipientId
},
message: {
attachment: {
type: "file",
payload: {
url: SERVER_URL + "/assets/test.txt"
}
}
}
};
callSendAPI(messageData);
}
/*
* Send a text message using the Send API.
*
*/
function sendTextMessage(recipientId, messageText) {
var messageData = {
recipient: {
id: recipientId
},
message: {
text: messageText,
metadata: "DEVELOPER_DEFINED_METADATA"
}
};
callSendAPI(messageData);
}
/*
* Send menu for users.
*
*/
function showMenu(recipientId, title) {
var dbUsers = await(userDb.getUser(recipientId));
var dbUser = dbUsers[0];
var options = [];
if ( dbUser.role === userDb.ROLE_NGO ) {
options = [
{
type: "postback",
title: "Latest News / Events",
payload: "LATEST_NEWS_EVENT",
},
{
type: "postback",
title: "Report",
payload: "REPORT",
},
{
type: "postback",
title: "Add News / Events",
payload: "POST_NEWS_EVENT",
},
];
} else if ( dbUser.role === userDb.ROLE_MODERATOR ) {
options = [
{
type: "postback",
title: "Latest News / Events",
payload: "LATEST_NEWS_EVENT",
},
{
type: "postback",
title: "Post Reports / News / Events",
payload: "POST_REPORTS_NEWS_EVENTS",
},
{
type: "postback",
title: "Broadcast",
payload: "BROADCAST",
},
];
} else {
options = [
{
type: "postback",
title: "Latest News / Events",
payload: "LATEST_NEWS_EVENT",
},
{
type: "postback",
title: "Report",
payload: "REPORT",
},
];
}
sendButtonMessage(recipientId, options, title);
}
/*
* Send categories of report action user can perform.
*/
function showReportCategory(recipientId) {
var title = "Ok. Choose the category of your case in the options below.";
var options = [
{
type: "postback",
title: "Sex Trafficking",
payload: reportDb.REPORT_TYPE_SEX,
},
{
type: "postback",
title: "Domestic Trafficking",
payload: reportDb.REPORT_TYPE_DOMESTIC,
},
{
type: "postback",
title: "Others",
payload: reportDb.REPORT_TYPE_OTHERS,
},
];
sendButtonMessage(recipientId, options, title);
}
/*
* Send categories of report action NGO can perform.
*/
function showPostNewsEventCategory(recipientId) {
var title = "Nice. Which one you want to choose?";
var options = [
{
type: "postback",
title: "News",
payload: reportDb.REPORT_TYPE_NEWS,
},
{
type: "postback",
title: "Event",
payload: reportDb.REPORT_TYPE_EVENT,
},
];
sendButtonMessage(recipientId, options, title);
}
/*
* Send a button message using the Send API.
*
*/
function sendButtonMessage(recipientId, buttons, title) {
var messageData = {
recipient: {
id: recipientId
},
message: {
attachment: {
type: "template",
payload: {
template_type: "button",
text: title,
buttons: buttons,
}
}
}
};
callSendAPI(messageData);
}
/*
* Send a Structured Message (Generic Message type) using the Send API.
*
*/
function sendGenericMessage(recipientId, cards) {
var messageData = {
recipient: {
id: recipientId
},
message: {
attachment: {
type: "template",
payload: {
template_type: "generic",
elements: cards
}
}
}
};
callSendAPI(messageData);
}
/*
* Send a receipt message using the Send API.
*
*/
function sendReceiptMessage(recipientId) {
// Generate a random receipt ID as the API requires a unique ID
var receiptId = "order" + Math.floor(Math.random()*1000);