This is just a quick example of using the drupal hook_library. For "vendor" libraries, but those into your /sites/all/libraries path, however for this particular example, using google maps, we have two files that that are needed to invoke the google maps v3 api. This puts everything into the footer, in order and allows Drupal to aggregate the fi…

gistfile1.txt

**
 * Implements hook_library
 */
function my_module_api_library() {
  //Google API key.
  $key = 'mygoogleapikey';
  $libraries = array();
  $libraries['my-module'] = array(
    'title' => 'My Module',
    'website' => 'http://my-site.localhost',
    'version' => '1.0',
    'js' => array(
      //Google maps.
      'https://maps.googleapis.com/maps/api/js?key='.$key.'&sensor=false' => array(
        'scope' => 'footer',
        'weight' => -20,
        'group' => JS_LIBRARY,
        'type' => 'external'
      ),
      //Info Box for google maps.
      PROPERTY_API_MODULE_PATH .'/includes/js/infobox.js' => array(
        'scope' => 'footer',
        'weight' => 0,
        'group' => JS_DEFAULT,
      ),
      //Module javascript.
      PROPERTY_API_MODULE_PATH .'/includes/js/my-module.js' => array(
        'scope' => 'footer',
        'weight' => 1,
        'group' => JS_DEFAULT,
      ),
    ),
  );
  return $libraries;
}