Lifecycle Hook: preRegistration

If an extension defines the preRegistration lifecycle hook, it is called before any modules are registered in the ExtensionManager. This hook can be used to:

• initialize 3rd party libraries
• register event listeners
• add or call services
• add or call commands

The preRegistration hook receives an object containing the ExtensionManager's associated ServicesManager, CommandsManager, and any configuration that was provided with the extension at time of registration.

Example preRegistration hook implementation

export default {  id: 'MyExampleExtension',
  /**   * @param {object} params   * @param {object} params.configuration   * @param {ServicesManager} params.servicesManager   * @param {CommandsManager} params.commandsManager   * @returns void   */  preRegistration({ servicesManager, commandsManager, configuration }) {    console.log('Wiring up important stuff.');
    window.importantStuff = () => {      console.log(configuration);    };
    console.log('Important stuff has been wired.');    window.importantStuff();  },};