BCrypt TypeError: Cannot read property 'value' of undefined NodeJs

Question

我正在尝试为我的密码加盐，但出现以下错误：

(node:12652) UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'value' of undefined

(node:12652) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)

(node:12652) [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.

我的auth/index.js

const bcrypt = require('bcrypt');
const saltRounds = 10;
const myPlaintextPassword = 's0/\/\P4$$w0rD';
const someOtherPlaintextPassword = 'not_bacon';

const salt = bcrypt.genSaltSync(saltRounds);

exports.modules = {
    salt
}

我的控制器：

const Users = require('../models/users');
const bcrypt = require('bcrypt');
const { salt } = require('../auth/index');

const getUsers = ((req,res) => 
    Users.findAll()
    .then((result) => { 
        res.json(result) 
    })
    .catch((error) => { res.json(error) })
    )

const addUsers = (async (req,res,next) => {
    const name = req.body.name;
    const email = req.body.email;
    let password = bcrypt.hashSync(req.body.password, salt.value);
    const data = {
        name,
        email,
        password
    }; 
    console.log(data);
    Users.create(data)
    .then((result) => { res.json(result) })
    .catch((error) => { res.json(error) });
});

module.exports = {
    getUsers,
    addUsers,
    Users
}

Answer 1

您导出了一个 salt 函数。您正在尝试访问它的对象，这当然是未定义的，因为该对象没有属性名称 value。因此，它会给您一个 UnhandledPromiseRejectionWarning 错误。 Salt 函数已经 return 一个值。

还有一件事，应该是auth/index.js中的module.exports。

您应该 return 来自函数的值。这就是您可以重写整个过程的方式。

index.js

const bcrypt = require('bcrypt');
const saltRounds = 10;
const myPlaintextPassword = 's0/\/\P4$$w0rD';
const someOtherPlaintextPassword = 'not_bacon';

module.exports.salt= function(){
return bcrypt.genSaltSync(saltRounds); }

您可以等待控制器级别的加盐功能。

let password = await bcrypt.hashSync(req.body.password, salt());

就是这样。现在，我认为您的代码会起作用。

BCrypt TypeError: Cannot read property 'value' of undefined NodeJs

BCrypt TypeError: Cannot read property 'value' of undefined NodeJs

javascript

node.js

bcrypt