Localy made php to magento directory- magento 2

Question

My requirement is sending sms while place order button triggered.

1) Locally I have use one predefined sms gateway server

I receive message When I run http://localhost/send-sms.php, its not a magento way its fully core php.

2) I have set one event/observer when place order get trigger

I could try with copy the send-sms.php content to observer execute method, also copy the php library to the same Observer Class location but it is not work.

Observer class execute method

public function execute(\Magento\Framework\Event\Observer $observer)
{

require "twilio-php-master/Services/Twilio.php";
$AccountSid = "XXXXXXXXXXXXXXXXXXX";
$AuthToken = "XXXXXXXXXXXXXXXXXXXX";
$client = new Services_Twilio($AccountSid, $AuthToken);
$message = $client->account->messages->create(array(
    "From" => "YYYYYYYYY",
    "To" => "YYYYYYYYYY",
    "Body" => "Test message!",
));
echo "Sent message {$message->sid}";
}

problem is magento get not recognize require URL. (first line of the execute method)

 require 'twilio-php-master/Services/Twilio.php';
 $client = new Services_Twilio($AccountSid, $AuthToken);

Services_Twilio class defined in Twilio.php, localy its work when I move to magento 2. I stuck with this two lines.

Where could I copy the twilio-php-master (php libreary)?

Answer 1

To my mind the right solution should be like this:

1. Add twilio/sdk (link on github and link on packagist) at your extension dependencies in the composer.json.
2. Create a model where you'll have the opportunity to write a code for sms sending (copy this part of code from the send-sms.php).
3. Use this model in your observer in order to send sms.

PS: Do not forget to run setup:upgrade to load the twilio/sdk library

UPDATE:

In the Magento root directory you should execute the command (in the terminal):

composer require twilio/sdk

Then a composer adds the twilio library in the vendor folder and generates the autoloader for it:

After that you can call the Services_Twilio class without any require (thanks to autoloader) like this:

$AccountSid = "XXXXXXXXXXXXXXXXXXX";
$AuthToken = "XXXXXXXXXXXXXXXXXXXX";
$client = new \Services_Twilio($AccountSid, $AuthToken);
$message = $client->account->messages->create(array(
    "From" => "YYYYYYYYY",
    "To" => "YYYYYYYYYY",
    "Body" => "Test message!",
));
echo "Sent message {$message->sid}";

Note: do not forget to add "\" before the class name.

Result in debug:

As you can see, the Twilio class calling (reference) happens without any errors.

In addition, you can add dependence in the composer.json file of the module, like this:

{
    "name": "vendor/module-module",
    "description": "Sample Module",
    "require": {
        "php": "~5.5.0|~5.6.0|~7.0.0",
        "magento/module-ui": "100.0.*",
        "magento/magento-composer-installer": "*",
        "twilio/sdk": "~4.10"
    },
    "type": "magento2-module",
    "version": "1.0.0",
    "license": [
        "OSL-3.0",
        "AFL-3.0"
    ],
    "autoload": {
        "files": [ "registration.php" ],
        "psr-4": {
            "Vendor\\Module\\": ""
        }
    }
}

But it will work only at installation of the module through the composer.