bot

app.post('/webhook', function (req, res) {
    var events = req.body.entry[0].messaging;
    for (i = 0; i < events.length; i++) {
        var event = events[i];
        if (event.message && (event.message.text == "what's your name?" || event.message.text == "what's your name" || event.message.text == "What's your name?" || event.message.text == "What's your name" || event.message.text == "what is your name?" || event.message.text == "what is your name" || event.message.text == "What is your name?" || event.message.text == "What is your name"))
        {
            sendMessage(event.sender.id, {text: "My name is José Escudero"});
        }
        else if (event.message && (event.message.text == "what do you study" || event.message.text == "what do you study?" || event.message.text == "What do you study?" || event.message.text == "What do you study")) {
            sendMessage(event.sender.id, {text: "I will start studying Computer Science this september at Universidad de Las Américas."});
        }
        else if(event.message && event.message.text)
        {
            sendMessage(event.sender.id, {text: "Echo: " + event.message.text});
        }

    }
    res.sendStatus(200);
});