node.js - Passport.js 更改默认错误消息

Question

我在我的 Node/express 应用程序中使用 Passport.js 进行身份验证，当输入字段为空时， Passport 显示默认消息“缺少凭据”，我该如何更改？可以说“请填写表格”之类的内容

这是我的本地登录策略:

  passport.use('login', new LocalStrategy({
      usernameField: 'email',
      passwordField: 'password'
    },
    function(email, password, done) {
      models.User.findOne({where: {email}}).then(user => {
        if (!user)
          return done(null, false, {message: 'Email not registered'});
        user.checkPassword(password).then(res => {
          if (!res)
            return done(null, false, {message: 'Incorrect username or password'});
          return done(null, user);
        });
      });
    }));

登录路径:

router.post('/login', passport.authenticate('login', {
  successRedirect: '/',
  failureRedirect: '/login',
  failureFlash: true
}));

Answer 1

我明白了，看起来我可以传递可选的回调来验证函数以覆盖默认功能，感谢 oneturkmen 的引用。

这是修改后的路线:

router.post('/signup', (req, res) => {
  passport.authenticate('signup', (err, user, info) => {
    const body = req.body;
    if (req.body.username === '' || req.body.email === '' || req.body.password === '')
      info.message = 'Please fill the form';
    req.logIn(user, err => {
      if (err) res.render('users/signup', info);
      else res.redirect('/');
    });
  })(req, res);
});