节点 js 错误"process with a non-zero exit code"

Question

我使用node js开发REST API，并使用MongoDB表达。我已经开发了一个端点来将用户插入数据库并且工作正常。现在我已经添加了带有 jwt 的登录功能，现在当我运行我的应用程序并尝试插入我的用户时，我收到此错误：

an app is listening on port 3000
(node:3650) UnhandledPromiseRejectionWarning: Unhandled promise     rejection (rejection id: 1): Error: Expected "payload" to be a plain   object.
(node:3650) [DEP0018] DeprecationWarning: Unhandled promise    rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

我正在使用节点js版本：Mac上的8.9.3有什么帮助吗？

@这是关于用户添加的代码：

var router = require('express').Router();
var bcrypt = require('bcryptjs');
var User = require('../models/user');
var jwt = require('jsonwebtoken');
var constants = require('../config/constants');
router.post('/',(req, res) => {
// add user --> user = { username: 'test', email: '[e-mail]',  pwd: 'Test'}
var user = new User({
username: req.body.user.username,
email : req.body.user.email,
passhash: bcrypt.hashSync(req.body.user.pwd, 10)
});
user.save().then(
(newuser) => {
  var sessionToken = jwt.sign(newuser._id, constants.JWT_SECRET, {expiresIn: 60*60*24});
  res.json({
    user: newuser,
    message: 'success',
    sessionToken: sessionToken
  });
},
(err) => {
  res.send(500, err.message);
}
);
});
module.exports = router;

这是关于登录的代码：

var router = require('express').Router();
var bcrypt = require('bcryptjs');
var jwt = require('jsonwebtoken');
var constants = require('../config/constants');
var User = require('../models/user');
router.post('/', (req, res) => {
User.findOne({ username: req.body.user.username}).then(
(user) => {
  if(user){
    bcrypt.compare(req.body.pwd, user.passhash, (err, matches) => {
      if (matches) {
        var sessionToken = jwt.sign(user._id, constants.JWT_SECRET, { expiresIn: 24*60*60 });
        res.json({
          user:user,
          message: 'succesfully authed',
          sessionToken: sessionToken
        });
      }else{
        res.json({
          user: {},
          message: 'failed to auth',
          sessionToken: ''
        });
      }
    });
  }else{
    res.json({
      user: {},
      message: 'failed to auth',
      sessionToken: ''
    });
  }
},
(err) => {
  // could not find users
  res.json(err);
}
);
});
module.exports = router;

我已经用邮递员测试了添加用户，我看到当我收到发布的消息时，用户入到 db 中

Answer 1

如果两个 API 方法都在同一文件中声明，则问题可能是因为您声明了两次相同的路径 + 动词：

router.post('/', (req, res) => {