WhatsApp API

var request = require('request'); //bash: npm install request
// URL for request POST /message
var url = 'https://api.chat-api.com/message?token=83763g87x';
var data = {
    phone: '79995253422', // Receivers phone
    body: 'Hello, Andrew!', // Сообщение
};
// Send a request
request({
    url: url,
    method: "POST",
    json: data
});

// URL for request POST /message
var url = 'https://api.chat-api.com/message?token=83763g87x';
var data = {
    phone: '79995253422', // Receivers phone
    body: 'Hello, Andrew!', // Message
};
// Send a request
$.ajax(url, {
    data : JSON.stringify(data),
    contentType : 'application/json',
    type : 'POST'
});

curl \
-d '{"phone": "79995253422","body": "Hello, Andrew!"}' \ # Phone and message
-H "Content-Type: application/json" \ # Headers
-X POST \ # Type = POST
"https://api.chat-api.com/message?token=83763g87x" # URL for request POST /message

// First of all - set a webhook to URL like http://your_website.com/my_webhook_url

// Require Express JS и Body Parser for JSON POST acceptance
var app = require('express')();
var bodyParser = require('body-parser');
app.use(bodyParser.json());

// Handle POST request
app.post('/my_webhook_url', function (req, res) {
    var data = req.body; // New messages in the "body" variable
    for (var i = 0; i < data.messages.length; i++) { // For each message
        var message = data.messages[i];
        console.log(message.author + ': ' + message.body); //Send it to console
    }
    res.send('Ok'); //Response does not matter
});

app.listen(80);