Feathersjs聊天应用程序教程Gravatar钩失败

Question

我现在正在做feathersjs聊天应用程序教程，但我基于猫鼬。

没关系，我可以创建用户，验证等等，但是在此时，我想实现Gravatar Hook，当我想启动服务器时，我将成为失败。

我有副本＆amp;粘贴了所有代码，这是我运行服务器时的错误。

用户.hook.js

const { authenticate } = require('@feathersjs/authentication').hooks;
const { hashPassword, protect } = require('@feathersjs/authentication-local').hooks;
const gravatar = require('../../hooks/gravatar');
module.exports = {
  before: {
    all: [],
    find: [ authenticate('jwt') ],
    get: [ authenticate('jwt') ],
    create: [ hashPassword(), gravatar() ],
    update: [ hashPassword(), authenticate('jwt') ],
    patch: [ hashPassword(), authenticate('jwt') ],
    remove: [ authenticate('jwt') ]
  },
  after: {
    all: [ 
      // Make sure the password field is never sent to the client
      // Always must be the last hook
      protect('password')
    ],
    find: [],
    get: [],
    create: [],
    update: [],
    patch: [],
    remove: []
  },
  error: {
    all: [],
    find: [],
    get: [],
    create: [],
    update: [],
    patch: [],
    remove: []
  }
};

gravatar.js

// Use this hook to manipulate incoming or outgoing data.
// For more information on hooks see: http://docs.feathersjs.com/api/hooks.html
// We need this to create the MD5 hash
const crypto = require('crypto');
// The Gravatar image service
const gravatarUrl = 'https://s.gravatar.com/avatar';
// The size query. Our chat needs 60px images
const query = 's=60';
module.exports = function (options = {}) { // eslint-disable-line no-unused-vars
  return async context => {
    // The user email
    const { email } = context.data;
    // Gravatar uses MD5 hashes from an email address to get the image
    const hash = crypto.createHash('md5').update(email).digest('hex');
    context.data.avatar = `${gravatarUrl}/${hash}?${query}`;
    // Best practise, hooks should always return the context
    return context;
  };
};

错误

    /mnt/c/Users/user/Documents/_coding/feathersJSChat/server/src/hooks/gravatar.js:13
  return async context => {
               ^^^^^^^
SyntaxError: Unexpected identifier
    at createScript (vm.js:56:10)
    at Object.runInThisContext (vm.js:97:10)
    at Module._compile (module.js:549:28)
    at Object.Module._extensions..js (module.js:586:10)
    at Module.load (module.js:494:32)
    at tryModuleLoad (module.js:453:12)
    at Function.Module._load (module.js:445:3)
    at Module.require (module.js:504:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/mnt/c/Users/user/Documents/_coding/feathersJSChat/server/src/services/users/users.hooks.js:5:18)

非常感谢，很抱歉我的英语不好。

Answer 1

就像基本指南一样，聊天应用程序显示的代码仅适用于节点8.0.0(node --version(或更高版本。更多信息可以在先决条件中找到。