Re-add the removed files.

config/whmcs.php

@@ -0,0 +1,111 @@
+<?php
+
+return [
+	/*
+	|--------------------------------------------------------------------------
+	| WHMCS URL
+	|--------------------------------------------------------------------------
+	|
+	| Main URL to your WHMCS
+	|
+	*/
+	'url'             => env('WHMCS_URL', 'http://localhost/whmcs'),
+
+	/*
+	|--------------------------------------------------------------------------
+	| API Credentials
+	|--------------------------------------------------------------------------
+	|
+	| Prior to WHMCS verison 7.2, authentication was validated based on admin
+	| login credentials, and not API Authentication Credentials. This method of
+	| authentication is still supported for backwards compatibility but may be
+	| deprecated in a future version of WHMCS.
+	|
+	| Supported auth types': "api", "password"
+	|
+	| @see https://developers.whmcs.com/api/authentication/
+	|
+	*/
+	'auth'            => [
+		'type' => env('WHMCS_AUTH_TYPE', 'api'),
+
+		'api' => [
+			'identifier' => env('WHMCS_API_ID', ''),
+			'secret'     => env('WHMCS_API_SECRET', ''),
+		],
+
+		'password' => [
+			'username' => env('WHMCS_ADMIN_USERNAME', ''),
+			'password' => env('WHMCS_ADMIN_PASSWORD', ''),
+		],
+	],
+
+	/*
+	|--------------------------------------------------------------------------
+	| API Credentials
+	|--------------------------------------------------------------------------
+	|
+	| an access key can be configured to allow IP restrictions to be bypassed.
+
+	| It works by defining a secret key/passphrase in the WHMCS configuration.php
+	| file which is then passed into all API calls. To configure it, add a line
+	| as follows to your configuration.php file in the root WHMCS directory.
+	|
+	| @see https://developers.whmcs.com/api/access-control/
+	|
+	*/
+	'api_access_key'  => env('WHMCS_API_ACCESS_KEY', ''),
+
+	/*
+	|--------------------------------------------------------------------------
+	| AutoAuth
+	|--------------------------------------------------------------------------
+	| Auth Key to automatically login the user to WHMCS if already loogged in
+	| to this app. Option "goto" allows you to redirect user to a specific WHMCS
+	| page after successful login.
+	|
+	| @see https://docs.whmcs.com/AutoAuth
+	|
+	*/
+	'autoauth'        => [
+		'key'  => env('WHMCS_AUTOAUTH_KEY'),
+		'goto' => 'clientarea.php?action=products',
+	],
+
+	/*
+	|--------------------------------------------------------------------------
+	| Session key to store WHMCS user record
+	|--------------------------------------------------------------------------
+	|
+	| After successful validation, we store the retrieved WHMCS user record to
+	| the following session key:
+	|
+	*/
+	'session_key'     => env('WHMCS_SESSION_USER_KEY', 'user'),
+
+	/*
+	|--------------------------------------------------------------------------
+	| Convert numbers from strings to floats in results
+	|--------------------------------------------------------------------------
+	|
+	| WHMCS API returns numbers (prices, etc..) as strings in its JSON results.
+	| This option will reformat the response so all the numbers with two decimals
+	| will be converted to floats in the resulting array. If you just need to
+	| display the results, leave the option turned off.
+	|
+	| Default: false
+	|
+	*/
+	'use_floats'      => false,
+
+	/*
+	|--------------------------------------------------------------------------
+	| Return the results as associative arrays
+	|--------------------------------------------------------------------------
+	|
+	| true: get result as an associative array.
+	| false: get the result as a stdClass object.
+	|
+	*/
+	'result_as_array' => true,
+];

src/Client.php

@@ -0,0 +1,67 @@
+<?php
+
+namespace Sburina\Whmcs;
+
+use Exception;
+use GuzzleHttp\Client as GuzzleClient;
+use GuzzleHttp\Exception\ConnectException;
+
+class Client
+{
+	/**
+	 * @var GuzzleClient
+	 */
+	protected $client;
+
+	/**
+	 * Client constructor.
+	 */
+	public function __construct()
+	{
+		$options = [
+			'timeout'     => 30,
+			'debug'       => false,
+			'http_errors' => true,
+			'base_uri'    => rtrim(config('whmcs.url'), '/').'/includes/api.php',
+			'verify'      => false,
+			'headers'     => [
+				'User-Agent' => 'sburina/laravel-whmcs-up',
+			],
+		];
+
+		if (!empty(config('whmcs.api_access_key'))) $options['query'] = ['accesskey' => config('whmcs.api_access_key')];
+
+		$this->client = new GuzzleClient($options);
+	}
+
+	/**
+	 * @param  array  $data
+	 *
+	 * @return array
+	 */
+	public function post($data)
+	{
+		try {
+			$fp = array_merge(
+				config('whmcs.auth.'.config('whmcs.auth.type')),
+				['responsetype' => 'json'],
+				$data
+			);
+
+			$response = $this->client->post('', ['form_params' => $fp]);
+			$contents = $response->getBody()->getContents();
+
+			if (config('whmcs.use_floats', false)) {
+				$contents = preg_replace('/":"(-?\d+\.\d\d)"/', '":\1', $contents);
+			}
+
+			return json_decode($contents, config('whmcs.result_as_array', true));
+		} catch (ConnectException $e) {
+
+			return ['result' => 'error', 'message' => $e->getMessage()];
+		} catch (Exception $e) {
+
+			return ['result' => 'error', 'message' => $e->getMessage()];
+		}
+	}
+}