FTTH/src/FTTHBundle/Factory/TokenFactory.php

<?php


namespace FTTHBundle\Factory;

use Buzz\Message\RequestInterface as HttpRequestInterface;

class TokenFactory
{
    public static function create($baseUrl, $ws){
        if(!is_null($baseUrl)){
            $endpointToken = $baseUrl."/oauth/v2/token";

            $params =  [
                'client_id' => getenv('OAUTH_CLIENT_ID'),
                'client_secret' => getenv('OAUTH_CLIENT_SECRET'),
                'grant_type' => 'client_credentials'
            ];

            try {
                $requestToken = $ws->makeRequest($endpointToken, HttpRequestInterface::METHOD_POST, $params);
                $token = json_decode($requestToken, true);

                $headers = [
                    'Authorization' => "Bearer {$token['access_token']}",
                    'ClientId' => $params['client_id'],
                    'ClientSecret' => $params['client_secret'],
                    'Microservice' => 1,
                    'Content-Type' => 'application/x-www-form-urlencoded'
                ];

                return $headers;
            } catch (\Exception $ex) {
                throw new \Exception($ex->getMessage());
            }
        }

        return null;
    }
}