README
fb-bot
SDK wrapper to verifyRequest, send message, recieve with Facebook Messenger Bots.
Install
$ npm install --save fb-bot
Initializing
This link initializing module parameters.
var express = require('express');
var facebookModule = require('fb-bot.js');
var app = express();
facebookModule.init({
APP_SECRET: 'YOUR_APP_SECRET',
VALIDATION_TOKEN: 'YOUR_VALIDATION_TOKEN',
PAGE_ACCESS_TOKEN: 'YOUR_PAGE_ACCESS_TOKEN',
SERVER_URL: 'YOUR_SERVER_UR'
});
app.use(bodyParser.json({ verify: facebookModule.verifyRequestSignature }));
Usage
### 2 important funtions
facebookModule.sendTextMessage(_senderId, _message).then( ... )
facebookModule.messageListener(data, callback)
Send an Echo message back to user
//Facebook message
app.post('/webhook', facebookModule.parsePOST, function (req, res) {
var dataList = req.afterParse ;
dataList.forEach(function(data){
facebookModule.messageListener(data, function(){
facebookModule.sendTextMessage(data.senderId, data.message.text);
});
});
res.sendStatus(200);
});
Send url of attachments back to user
//Facebook message
app.post('/webhook', facebookModule.parsePOST, function (req, res) {
var dataList = req.afterParse ;
dataList.forEach(function(data){
facebookModule.messageListener(data, function(){
facebookModule.sendTextMessage(data.senderId, data.message.attachments[0].payload.url);
});
});
res.sendStatus(200);
});
Two import routes
Important
- GET /webhook
- POST /webhook
- /webhook is default url routes where facebook send verification to
## Verification
app.get('/webhook', facebookModule.authGET, function (req, res, next) {
res.status(200).send(req.query['hub.challenge']);
});
## Recieve Message
app.post('/webhook', facebookModule.parsePOST, function (req, res) {
var dataList = req.afterParse ;
dataList.forEach(function(data){
// ....
});
res.sendStatus(200);
});