如何找出哪个签入快速验证器触发了错误

问题描述

我正在创建一个具有管理员用户的 Web 应用，该用户是唯一可以创建其他用户的用户。我将管理员用户名和密码存储在 .env 文件中并使用 dotenv 包。我的问题是，当我使用 custom 检查（使用 express-validator）将用户名和密码与 env 变量进行比较时，它总是触发错误，即使我的所有 console.log() 都在自定义验证中不在终端中显示。

这是我的router

const router = require('express').Router();
const { logAdmin} = require('../../controllers/admin');
const { validateAdminLogIn } = require('../../utils/adminValidation');

// log admin in
router.post('/login',validateAdminLogIn,logAdmin);

和我的adminValidation

const { check,validationResult } = require('express-validator');

exports.validateAdminLogIn = [
  check('username').custom((value) => {
    if (value !== process.env.ADMIN_USER) {
      console.log('no user match') // this doesn't run
      return Promise.reject('wrong username or password');
    }
  }),check('password').custom((value) => {
    if (value !== process.env.ADMIN_PASSWORD) {
      console.log("passwords don't match") // this never runs
      return Promise.reject('wrong username or password');
    }
  }),(req,res,next) => {
    const errors = validationResult(req);
    if (!errors.isEmpty()) {
      console.log('there are errors');
      console.log(errors);
      return res.status(401).json({ errors: errors.array() });
    }

    console.log('finished validation with no errors'); // never get to here
    next();
  },];

还有我的 controller，我还没有做过任何事情

exports.logAdmin = (req,res) => {
  // get username and password
  const { username,password } = req.body;
  // match to the admin credentials
  // create token and send it as a cookie using the admin token secret
};

这是我的请求（vs 代码的休息客户端）

### admin
post http://localhost:5000/api/auth/admin/login
Content-Type: application/json

{
    "username": "admin","password": "password"
}

这里是错误结果

HTTP/1.1 401 Unauthorized
X-Powered-By: Express
Content-Type: application/json; charset=utf-8
Content-Length: 169
ETag: W/"a9-zEKcgYJMgQx5PLgkFguKIPyF/5Q"
Date: Fri,23 Apr 2021 22:35:22 GMT
Connection: close

{
  "errors": [
    {
      "value": "admin","msg": "Invalid value","param": "username","location": "body"
    },{
      "value": "password","param": "password","location": "body"
    }
  ]
}

非常感谢

解决方法

我已经解决了这个问题，因为我一开始没有承诺要拒绝。如果没有错误，我也不会从自定义验证器函数返回任何内容

所以这是我修复它的方法

check('username')
    .custom((value) => {
      const username = process.env.ADMIN_USER;
      if (value !== username) throw new Error('wrong username or password');
      return true;
    })
    .withMessage('user name error'),check('password').custom((value) => {
    const password = process.env.ADMIN_PASSWORD;
    if (value !== password) throw new Error('wrong username or password');
    return true;
  }),(req,res,next) => {
    const errors = validationResult(req);
    console.log(errors);
    if (!errors.isEmpty())
      return res.status(401).json({ errors: errors.array() });

    console.log('finished validation with no errors');
    next();
  },

express express express express-validator javascript