Webiny\Component\Router\Router::getRouteCollection PHP Method

    public static function getRouteCollection()
    {
        return self::$routeCollection;
    }

 /**
  * Generate a url from a route.
  *
  * @param string $name       Name of the Route.
  * @param array  $parameters List of parameters that need to be replaced within the Route path.
  * @param bool   $absolute   Do you want to get the absolute url or relative. Default is absolute.
  *
  * @return string Generated url.
  * @throws RouterException
  */
 public function generate($name, $parameters = [], $absolute = true)
 {
     $route = Router::getRouteCollection()->get($name);
     if ($this->isNull($route)) {
         throw new RouterException('Unknown route "%s".', [$name]);
     }
     $count = 0;
     $unknownParams = [];
     $path = $route->getRealPath();
     // replace provided parameters
     foreach ($parameters as $pk => $pv) {
         $path = str_replace('{' . $pk . '}', $pv, $path, $count);
         if ($count < 1) {
             $unknownParams[$pk] = $pv;
         }
     }
     // replace default parameters
     if (strpos($path, '{') !== false) {
         foreach ($route->getOptions() as $name => $data) {
             if ($data->getAttribute('Default', false)) {
                 $path = str_replace('{' . $name . '}', $data->getAttribute('Default'), $path);
             }
         }
     }
     if (strpos($path, '{') !== false) {
         throw new RouterException('Unable to generate a url for "%s" route. Some parameters are missing: "%s"', [$name, $path]);
     }
     /**
      * @var $url UrlObject
      */
     $url = $this->httpRequest()->getCurrentUrl(true)->setPath($path)->setQuery($unknownParams);
     $path = $url->getPath();
     if (!$absolute) {
         $query = $url->getQuery();
         if (count($query) > 0) {
             $query = '?' . http_build_query($query);
         } else {
             $query = '';
         }
         return $path . $query;
     }
     return $url->setPath($path)->val();
 }