twilio_sms_bot.js

var Botkit = require('./lib/Botkit.js');
var os = require('os');

var controller = Botkit.twiliosmsbot({
    account_sid: process.env.TWILIO_ACCOUNT_SID,
    auth_token: process.env.TWILIO_AUTH_TOKEN,
    twilio_number: process.env.TWILIO_NUMBER,
    debug: true
});

var bot = controller.spawn({});

controller.setupWebserver(5000, function(err, server) {
    server.get('/', function(req, res) {
        res.send(':)');
    });

    controller.createWebhookEndpoints(server, bot);
})

controller.hears(['hello', 'hi'], 'message_received', function(bot, message) {
    controller.storage.users.get(message.user, function(err, user) {
        if (user && user.name) {
            bot.reply(message, 'Hello ' + user.name + '!!');
        } else {
            bot.reply(message, 'Hello.');
        }
    });
});

controller.hears(['call me (.*)'], 'message_received', function(bot, message) {
    var matches = message.text.match(/call me (.*)/i);
    var name = matches[1];
    controller.storage.users.get(message.user, function(err, user) {
        if (!user) {
            user = {
                id: message.user,
            };
        }
        user.name = name;
        controller.storage.users.save(user, function(err, id) {
            bot.reply(message, 'Got it. I will call you ' + user.name + ' from now on.');
        });
    });
});

controller.hears(['what is my name', 'who am i'], 'message_received', function(bot, message) {
    controller.storage.users.get(message.user, function(err, user) {
        if (user && user.name) {
            bot.reply(message, 'Your name is ' + user.name);
        } else {
            bot.reply(message, 'I don\'t know yet!');
        }
    });
});


controller.hears(['shutdown'], 'message_received', function(bot, message) {
    bot.startConversation(message, function(err, convo) {
        convo.ask('Are you sure you want me to shutdown?', [{
                pattern: bot.utterances.yes,
                callback: function(response, convo) {
                    convo.say('Bye!');
                    convo.next();
                    setTimeout(function() {
                        process.exit();
                    }, 3000);
                }
            },
            {
                pattern: bot.utterances.no,
                default: true,
                callback: function(response, convo) {
                    convo.say('*Phew!*');
                    convo.next();
                }
            }
        ]);
    });
});


controller.hears(['uptime', 'identify yourself', 'who are you', 'what is your name'], 'message_received', function(bot, message) {

    var hostname = os.hostname();
    var uptime = formatUptime(process.uptime());

    bot.reply(message, 'I am a bot! I have been running for ' + uptime + ' on ' + hostname + '.');

});

function formatUptime(uptime) {
    var unit = 'second';
    if (uptime > 60) {
        uptime = uptime / 60;
        unit = 'minute';
    }
    if (uptime > 60) {
        uptime = uptime / 60;
        unit = 'hour';
    }
    if (uptime != 1) {
        unit = unit + 's';
    }

    uptime = uptime + ' ' + unit;
    return uptime;
}