Contoh penggunaan custom hook di feathersjs

oauth-github.js

// Use this hook to manipulate incoming or outgoing data.
// For more information on hooks see: http://docs.feathersjs.com/api/hooks.html
// get data email and access token from github Oauth

module.exports = function (options = {}) { // eslint-disable-line no-unused-vars
  return function userGithub (hook) {

    if (hook.data.github) {
    	hook.data.email = hook.data.github.profile.emails[0].value;
    	hook.data.accessToken = hook.data.github.accessToken;
    }

    return Promise.resolve(hook);
  };
};