Έχω κάνει ένα φροντιστήριο πώς να στήσετε ένα chatbot Facebook για fanpage. Λειτουργεί τέλεια και επίσης να αλλάξετε τη λέξη-κλειδί και το μήνυμα που εμφανίζεται στην περίπτωση που ένας χρήστης πληκτρολογεί ακριβή τη λέξη-κλειδί.
Τώρα το μόνο πράγμα που είναι, δεν καταλάβω, πώς μπορείτε να προσθέσετε πολλές λέξεις-κλειδιά με τις απαντήσεις.
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'] === 'token') {
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'))
})
// API End Point -
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 && event.message.text) {
text = event.message.text
if (text === 'hi') {
sendGenericMessage(sender)
continue
}
sendTextMessage(sender, parrot: + text.substring(0, 200))
}
if (event.postback) {
text = JSON.stringify(event.postback)
sendTextMessage(sender, Postback received: +text.substring(0, 200), token)
continue
}
}
res.sendStatus(200)
})
var token = enter token here
// function to echo back messages
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)
}
})
}
// Send an test message back as two cards.
function sendGenericMessage(sender) {
messageData = {
attachment: {
type: template,
payload: {
template_type: generic,
elements: [{
title: title 1,
subtitle: subtitle,
image_url: url of image,
buttons: [{
type: web_url,
url: https://www.facebook.com/,
title: Facebook
}, {
type: web_url,
url: https://www.reddit.com,
title: Reddit
},{
type: web_url,
url: https://twitter.com/,
title: Twitter
}],
}, {
title: Title 2 ,
subtitle: Subtitle,
image_url: imgurl,
buttons: [{
type: postback,
title: title,
payload: payload,
},{
type: postback,
title: title,
payload: payload,
}, {
type: postback,
title: title,
payload: payload,
}],
}, {
title: title,
subtitle: subtitle,
image_url: http://www.google.com,
buttons: [{
type: postback,
title: title,
payload: payload,
},{
type: postback,
title: title,
payload: payload,
}, {
type: postback,
title: title,
payload: payload,
}],
}]
}
}
}
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)
}
})
}
