see routes in lumen code example

Example 1: lumen routes

$app->group(['middleware' => 'auth'], function () use ($app) {
    $app->get('/', function ()    {
        // Uses Auth Middleware
    });

    $app->get('user/profile', function () {
        // Uses Auth Middleware
    });
});

Example 2: lumen routes

$app->get($uri, $callback);
$app->post($uri, $callback);
$app->put($uri, $callback);
$app->patch($uri, $callback);
$app->delete($uri, $callback);
$app->options($uri, $callback);