Node.js+MongoDB无法保存哈希密码，提示password路径必填

错误信息 #

Error: User validation failed: password: Path password is required.

相关代码 #

用户模型代码 #

const {Schema, model} = require('mongoose');

const UserSchema = new Schema({
    email: {type: String, unique: true, required: true},
    password: {type: String, required: true},
    isActivated: {type: Boolean, default: false},
    activationLink: {type: String},
})

module.exports = model('User', UserSchema)

创建用户代码 #

const bcrypt = require('bcryptjs');
const UserModel = require('../models/user-model');
...
const hashPassword = await bcrypt.hash(password, 10);
console.log(`email => ${email} pass => ${hashPassword}`);
const user = await UserModel.create({email, hashPassword});

日志输出 #

email => lll@google.com pass => $2a$10$4IV2Q0ZncWHInfT89Fwl.eCxCgvykvY.uqlvq0GNSeDJ/6Q83T7nK

问题原因 #

用户模型定义的必填字段是password，但创建用户时传入的字段是hashPassword，字段名不匹配导致Mongoose判定password字段未提供，触发必填验证错误。

修复方案 #

有两种简单的修复方式：

方式1：调整创建用户时的字段映射 #

修改创建用户的代码，将哈希密码赋值给模型要求的password字段：

const user = await UserModel.create({email, password: hashPassword});

方式2：修改哈希后的变量名 #

将哈希密码的变量名直接改为password，利用对象简写语法传入：

// 注意原密码变量名避免和哈希后的重名，建议改为originalPassword
const password = await bcrypt.hash(originalPassword, 10);
console.log(`email => ${email} pass => ${password}`);
const user = await UserModel.create({email, password});

内容的提问来源于stack exchange，提问作者ArisRS