eBay Trading APIでストアの設定を構成します

{
    "require": {
        "slim/slim-skeleton": "dev-master",
        "slimcontroller/slimcontroller": "dev-master",
        "guzzlehttp/guzzle": "4.*",
        "vlucas/valitron": "~1.2",
        "codeguy/upload": "*"
    },
    "autoload": {
      "classmap": [
        "controllers",
        "classes"
      ]
    }
}

<?php
require 'vendor/autoload.php';

$app = new \SlimController\Slim([
    'templates.path' => 'templates'
]);

$app->view(new \Slim\Views\Twig());
$app->view->parserOptions = [
    'charset' => 'utf-8',
    'cache' => realpath('templates/cache'),
    'auto_reload' => true,
    'strict_variables' => false,
    'autoescape' => true
];

$app->hook('slim.before', function () use ($app) {
    $app->view()->appendData(['baseUrl' => '/tester/ebay_trading_api']);
});

$app->container->singleton('ebay', function () use ($app) {
    $id = 1;
    $settings_result = $app->db->query("SELECT user_token, run_name, dev_id, app_id, cert_id, site_id FROM settings WHERE id = $id");
    $settings = $settings_result->fetch_object();
    return new Ebay($settings);
});

$app->container->singleton('db', function () {
    $server = 'localhost';
    $user = 'user';
    $pass = '';
    $database = 'ebaytrading';
    return new mysqli($server, $user, $pass, $database);
});


$app->addRoutes([
    '/' => 'Home:index',
    '/settings' => 'Settings:view',
    '/settings/update' => 'Settings:update',
    // ... other routes ...
]);

$app->run();

<?php
class Ebay {
    public $compatability_level = 885;
    public $sandbox_url = 'https://api.sandbox.ebay.com/ws/api.dll';
    public $url = 'https://api.ebay.com/ws/api.dll';
    // ... other properties ...

    public function __construct($settings) {
        // ... property assignment ...
    }

    public function request($method, $request_body) {
        // ... Guzzle request handling ...
    }

    public function getSessionID() {
        // ... GetSessionID API call ...
    }

    public function getUserToken($session_id) {
        // ... FetchToken API call ...
    }

    public function getUserPreferences() {
        // ... GetUserPreferences API call and data processing ...
    }

    public function getEbayDetails($detail_name) {
        // ... GeteBayDetails API call and data processing ...
    }
}

<?php
class Settings extends \SlimController\SlimController {
    public function viewAction() {
        // ... Fetches user preferences, shipping services, and store settings from DB and API.  Renders 'settings/view.twig' ...
    }

    public function updateAction() {
        // ... Uses Valitron for validation, then updates store settings in the DB using prepared statements.  Handles success/failure messages and redirects ...
    }
}