mboretto/messenger-bot

Facebook Messenger bot api

Messenger Bot

Php wrapper around the Facebook Messenger Platform. Strongly inspired to irazasyed/telegram-bot-sdk and akalongman/php-telegram-bot;

Installation

1. Set up the facebook page and application

2. Library installation

   composer require mboretto/messenger-bot

3. Edit the [hook.php]((https://github.com/mbroretto/messenger-bot/examples/hook.example.php) file with your Facebook credential.

4. Point the webhook to your https domain.

Features

• GenericTemplate, ButtonTemplate, ThreadSettings, Buttons, QuickReply, fetching user info and Commands...
• Automatic message splitting if characters exceed the limit

Middleware

Sometimes you need to execute some routines for each incoming messaging object. In order to do this you can exploit the middleware layer. Middleware instances need to implement the Middleware\Layer Class. Middleware can be before the core function:

<?php
namespace MBoretto\MessengerBot\Middleware;
use \Closure;
use \MBoretto\MessengerBot\Objects\Messaging;

class BeforeGetUser extends Layer
{
    public function handle(Messaging $messaging, Closure $next)
    {
        //My routine
        return $next($messaging);
    }
}

or after the core function:

<?php
namespace MBoretto\MessengerBot\Middleware;
use \Closure;
use \MBoretto\MessengerBot\Objects\Messaging;

class BeforeGetUser extends Layer
{
    public function handle(Messaging $messaging, Closure $next)
    {
        $messaging = $next($messaging);
        //My routine
        return $messaging;
    }
}

Then add the middleware in your hook file as explained in the examples.
Middleware is inspired to Lumen/Laravel Pipeline.

Commands

Commads needs to be registered in hook.php and must me istance of Commmand.php.

• When a Postback update is received, the CommandBus check if payload match the name of a postback command. If this occours the command is executed otherwise the GenericPostbackCommand.php will handle it.
• A simple text message is handled by GenericMessageCommand.php
• Init commands are executed everytime the webhook is setted

Additional information

Any issues, feedback, suggestions or questions please use issue tracker here.