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index.js
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index.js
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var express = require('express')
var bodyParser = require('body-parser')
var request = require('request')
var app = express()
app.set('port', (process.env.PORT || 5000))
// Process application/x-www-form-urlencoded
app.use(bodyParser.urlencoded({extended: false}))
// Process application/json
app.use(bodyParser.json())
// Index route
app.get('/', function (req, res) {
res.send('Hello world, I am a chat bot')
})
// for Facebook verification
app.get('/webhook/', function (req, res) {
if (req.query['hub.verify_token'] === 'my_voice_is_my_password_verify_me') {
res.send(req.query['hub.challenge'])
}
res.send('Error, wrong token')
})
// Spin up the server
app.listen(app.get('port'), function() {
console.log('running on port', app.get('port'))
})
//Updated webhook API to look for special messages to trigger the cards and send back a postback function when user clicks on message button or card
app.post('/webhook/', function (req, res) {
messaging_events = req.body.entry[0].messaging
for (i = 0; i < messaging_events.length; i++) {
event = req.body.entry[0].messaging[i]
sender = event.sender.id
if (event.message) {
text = event.message.text
if (text === 'Hello') {
//sendTextMessage(sender, "Hello, welcome to Ujamaa. I'm here to help you find a black owned business with the products or services you need.\n\n Are you ready?")
//askLocation()
//welcomeButton()
continue
}
//if (text == 'Ready') {
// askLocation()
//}
//}
else {
sendTextMessage(sender, "I'm sorry but I don't understand what you're saying")
continue
}
}
if (event.postback) {
text = JSON.stringify(event.postback.payload)
sendTextMessage(sender, "Postback received: "+text.substring(0, 200), token)
//if (text === 'yes') {
//askLocation()
//continue
//}
continue
}
}
res.sendStatus(200)
})
var token = "EAAXLVzypWUIBALniqbgnR6Q7S5QN7UatVVSejcFVIgjRczLROyA9SpUGFJzZCiZClV9iDC8pVJ9VEZAZA6dSbvgrTIHM7dhq75jHVwGMsFLWlW8U2NmleM0sZAkyofBy6L2N7sKtXV6ugUn6vrOJcrcCTJV5ZAcF6q451nDxi4kAZDZD"
function sendTextMessage(sender, text) {
messageData = {
text:text
}
request({
url: 'https://graph.facebook.com/v2.6/me/messages',
qs: {access_token:token},
method: 'POST',
json: {
recipient: {id:sender},
message: messageData,
}
}, function(error, response, body) {
if (error) {
console.log('Error sending messages: ', error)
} else if (response.body.error) {
console.log('Error: ', response.body.error)
}
})
}
//function asking for location of business.
function askLocation() {
messageData = {
"text":"What is your location?",
"quick_replies":[{
"content_type":"text",
"title":"Raleigh",
"payload":"Raleigh"
},
{
"content_type":"text",
"title":"Chapel Hill",
"payload":"Chapel Hill"
}]
}
request({
url: 'https://graph.facebook.com/v2.6/me/messages',
qs: {access_token:token},
method: 'POST',
json: {
recipient: {id:sender},
message: messageData,
}
}, function(error, response, body) {
if (error) {
console.log('Error sending messages: ', error)
} else if (response.body.error) {
console.log('Error: ', response.body.error)
}
})
}
//Welcome Button
/*function welcomeButton() {
messageData = {
recipient: {
id: recipientId
},
message:{
attachment:{
type:"template",
payload:{
template_type:"button",
//"text":"Hello, welcome to Ujamaa. I'm here to help you find a black owned business with the products or services you need.\n\nAre you ready? to get started?",
"buttons":[{
"type":"postback",
"title":"yes",
"payload":"yes"
}]
// }
// }
// }
}
request({
url: 'https://graph.facebook.com/v2.6/me/messages',
qs: {access_token:token},
method: 'POST',
json: {
recipient: {id:sender},
message: messageData,
}
}, function(error, response, body) {
if (error) {
console.log('Error sending messages: ', error)
} else if (response.body.error) {
console.log('Error: ', response.body.error)
}
})
}*/
function welcomeButton(recipientId) {
var messageData = {
recipient: {
id: recipientId
},
message:{
attachment:{
type:"template",
payload:{
template_type:"button",
text:"Hello, welcome to Ujamaa. I'm here to help you find a black owned business with the products or services you need.\n\nAre you ready to get started?",
buttons:[{
type:"postback",
title:"yes",
payload:"yes"
}]
}
}
}
};
callSendAPI(messageData);
}
function sendGenericMessage(recipientId) {
var messageData = {
recipient: {
id: recipientId
},
message: {
attachment: {
type: "template",
payload: {
template_type: "generic",
elements: [{
title: "rift",
subtitle: "Next-generation virtual reality",
item_url: "https://www.oculus.com/en-us/rift/",
image_url: "http://messengerdemo.parseapp.com/img/rift.png",
buttons: [{
type: "web_url",
url: "https://www.oculus.com/en-us/rift/",
title: "Open Web URL"
}, {
type: "postback",
title: "Call Postback",
payload: "Payload for first bubble",
}],
}, {
title: "touch",
subtitle: "Your Hands, Now in VR",
item_url: "https://www.oculus.com/en-us/touch/",
image_url: "http://messengerdemo.parseapp.com/img/touch.png",
buttons: [{
type: "web_url",
url: "https://www.oculus.com/en-us/touch/",
title: "Open Web URL"
}, {
type: "postback",
title: "Call Postback",
payload: "Payload for second bubble",
}]
}]
}
}
}
};
callSendAPI(messageData);
}