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https://github.com/mangoweb/messenger

PHP Messenger Platform interface
https://github.com/mangoweb/messenger

bots composer facebook messenger

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PHP Messenger Platform interface

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Messenger PHP
=============

## Installation

Use composer:

```bash
$ composer require mangoweb/messenger
```

## Usage

![Example screencast](doc/screencast.gif)

The `PAGE_ACCESS_TOKEN` must be Facebook Page `access_token` with `pages_messaging` permission. `RECIPIENT_ID` is different for each Facebook App, Page and User.

### Sending messages

```php
use Mangoweb\Messenger\Page;
use Mangoweb\Messenger\PageSender;
use Mangoweb\Messenger\Message;
use Mangoweb\Messenger\CardElement;
use Mangoweb\Messenger\Button;
use Mangoweb\Messenger\QuickReply;

$page = new Page(PAGE_ACCESS_TOKEN);
$sender = new PageSender($page);

// Sending simple text message
$textMessage = Message::text('Hello world!');
$sender->send(RECIPIENT_ID, $textMessage);

// Sending an image attachment
$imageMessage = Message::image('https://unsplash.it/400/300');
$sender->send(RECIPIENT_ID, $imageMessage);

// Sending complex message with two cards and some button
$cardButtons = [
Button::url('Github', 'https://github.com/manGoweb/Messenger')
];

$cards = [
CardElement::create('Lorem', 'ipsum dolor', 'https://github.com/manGoweb/Messenger', 'https://unsplash.it/400/300?random', $cardButtons),
CardElement::create('Foo', NULL, NULL, 'https://unsplash.it/400/300?random')
];

$messageWithCards = Message::generic($cards);
$sender->send(RECIPIENT_ID, $messageWithCards);
```

### Thread management

```php
use Mangoweb\Messenger\Page;
use Mangoweb\Messenger\Greeting;
use Mangoweb\Messenger\GetStartedButton;
use Mangoweb\Messenger\PersistentMenu;
use Mangoweb\Messenger\Button;

$page = new Page(PAGE_ACCESS_TOKEN);

// Detect if page is already hooked to your Facebook App
echo ($page->isHookedToApp(APP_ID) ? 'already hooked' : 'not yet hooked') . "\n";

// Load basic info about a Page
$info = $page->loadInfo();
echo $info['name'] . "\n";

// Load info about user as the Page can see them
$profile = $page->loadProfile(RECIPIENT_ID);
echo $profile['first_name'] . ' ' . $profile['last_name'] . "\n";

// Set greeting text
$page->setGreeting(Greeting::text('Hello world'));

// Set "get started" button payload
$page->setGetStartedButton(GetStartedButton::payload('1'));

// Set persistent menu buttons
$page->setPersistentMenu(PersistentMenu::buttons([
Button::postback('Help', 'help'),
Button::postback('Sign in', 'sign-in'),
]));
```

### Receiving messages

```php
use Mangoweb\Messenger\Receiver;

$receiver = new Receiver();

// Define event hooks
$receiver->onMessage[] = function($message) {
echo "Someone sent us a message" . "\n";
var_dump($message);
};

$receiver->onPostback[] = function($postback) {
echo "Someone clicked on a postback button" . "\n";
var_dump($postback);
};

// Load JSON payload from Messenger request
$httpBody = file_get_contents('php://input');
/*
$httpBody = '{
"object":"page",
"entry":[
{
"id":"PAGE_ID",
"time":1458692752478,
"messaging":[
{
"sender":{
"id":"USER_ID"
},
"recipient":{
"id":"PAGE_ID"
},
"timestamp":1458692752478,
"message":{
"mid":"mid.1458696618141:b4ef9d19ec21086067",
"seq":51,
"attachments":[
{
"type":"image",
"payload":{
"url":"IMAGE_URL"
}
}
]
}
}
]
}
]
}';
*/
$payload = json_decode($httpBody, TRUE);

// Process the payload
$receiver->processBody($payload);

```

## Tests

Add `tests/php.ini` (you may use the templates `php-unix.ini` or `php-win.ini`).

In `tests/local.php` you can define constants for testing real API calls (you may use the template `local.sample.php`)

```bash
$ ./vendor/bin/tester -c tests/php.ini tests
```

## License

MIT. See full [license](license.md).