由于未知的 bcrypt 问题，登录时出错

问题描述

我正在使用 nodejs and mongodb 处理后端。编码 authentication 部分后，我遇到了未知问题，我认为它来自 bcrypt :(

请看我的代码。

const mongoose = require("mongoose");
const bcrypt = require("bcrypt");
const jwt = require("jsonwebtoken");
const validator = require("validator");
require("dotenv").config();

const userSchema = mongoose.Schema(
  {
    email: {
      type: String,required: true,unique: true,trim: true,lowercase: true,validate(value) {
        if (!validator.isEmail) {
          throw new Error("Invalid Email");
        }
      },},password: {
      type: String,role: {
      type: String,enum: ["user","admin"],default: "user",name: {
      type: String,maxlength: 21,phone: {
      required: true,type: Number,maxlength: 12,{
    timestamps: true,);

userSchema.pre("save",async function (next) {
  if (this.isModified("password")) {
    // hash the password
    const salt = await bcrypt.genSalt(10);
    const hash = await bcrypt.hash(this.password,salt);
    this.password = hash;
  }
  next();
});

userSchema.methods.generatetoken = function () {
  const userObj = { id: this._id.toHexString(),email: this.email };
  const token = jwt.sign(userObj,process.env.DB_SECRET,{
    expiresIn: "3d",});
  return token;
};

userSchema.statics.emailTaken = async function (email) {
  const user = await this.findOne({ email });
  return !!user;
};

const User = mongoose.model("User",userSchema);

module.exports = {
  User,};

用户 API 代码（请避免那些控制台日志语句，因为我添加它们是为了调试目的）-

const express = require("express");
const router = express.Router();
require("dotenv").config();
const { User } = require("../../models/usermodel");
const bcrypt = require("bcrypt");

// const comparePassword = async (userPassword) => {
//   console.log("Comparing password with bcrypt");
//   const match = await bcrypt.compare(userPassword,this.password);
//   console.log(match);
//   return match;
// };

router.route("/signup").post(async (req,res) => {
  const { email,password,name,phone } = req.body;
  console.log(req.body);

  try {
    // Check if user email exists
    if (await User.emailTaken(email)) {
      return res.status(400).json({ message: "Email already exists" });
    }

    // create user instance and hash password
    const user = new User({
      email: email,password: password,name: name,phone: phone,});

    // generate jwt token
    console.log("user is saving");
    const token = user.generatetoken();
    const userDoc = await user.save();

    // send email

    // save....send token with cookie
    res.cookie("access-token",token).status(200).send(returnUserDoc(userDoc));
  } catch (error) {
    res
      .status(400)
      .json({ message: "Error while creating user",error: error });
  }
});

router.route("/login").post(async (req,res) => {
  try {
    // Find user
    console.log("Finding User........");
    let user = await User.find({ email: req.body.email });
    if (!user) {
      return res.status(400).json({ message: "Invalid Credentials" });
    }

    // Compare Password
    console.log("Comparing password with bcrypt");
    const match = await bcrypt.compare(req.body.password,user.password);
    console.log("password compared");
    console.log(match);
    if (match == false) {
      return res.status(400).json({ message: "Invalid Credentials" });
    }

    console.log("Password Matched");

    // Generate Token
    console.log("Generating Token........");
    const token = user.generatetoken();

    // Response
    console.log("Sending Response........");
    res.cookie("access-token",token).status(200).send(returnUserDoc(user));
  } catch (error) {
    console.log("Error");
    res.status(400).json({ message: "Error while loggin in",error: error });
  }
});

// functions
const returnUserDoc = (userDoc) => {
  return {
    _id: userDoc._id,name: userDoc.name,email: userDoc.email,phone: userDoc.phone,};
};

module.exports = router;

控制台日志 -

listening on port 3001
Database Connected
Finding User........
Comparing password with bcrypt
Error

我发现代码在 const match = await bcrypt.compare(req.body.password,user.password); 这一行之前成功执行

在 console.log(error.message); 我收到了这个 -

 Error: data and hash arguments required
    at Object.compare (D:\CovidHelpers\CovidHelpers\node_modules\bcrypt\bcrypt.js:208:17)
    at D:\CovidHelpers\CovidHelpers\node_modules\bcrypt\promises.js:29:12
    at new Promise (<anonymous>)
    at Object.module.exports.promise (D:\CovidHelpers\CovidHelpers\node_modules\bcrypt\promises.js:20:12)
    at Object.compare (D:\CovidHelpers\CovidHelpers\node_modules\bcrypt\bcrypt.js:204:25)
    at D:\CovidHelpers\CovidHelpers\server\routes\api\users.js:60:32
    at processticksAndRejections (internal/process/task_queues.js:93:5)
data and hash arguments required

请帮我解决这个问题:) 谢谢

解决方法

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