尝试在打字稿中使用猫鼬和 bcrypt 比较密码

Posted 2023-03-11

【中文标题】尝试在打字稿中使用猫鼬和 bcrypt 比较密码

【英文标题】：Try to compare Password using mongoose and bcrypt in typescript

【发布时间】：2021-04-08 04:56:45

【问题描述】：

我在第 40 行收到以下错误：

    bcrypt.compare(candidatePassword, this.password, function (err, isMatch) 
                                      ~~~~~~~~~~~~~

“函数”类型的参数不可分配给“字符串”类型的参数。ts(2345)

根据 IUser，它应该是字符串，我不知道为什么 ts 意味着它是一个函数。

完整的文件：

import  Schema, Document  from 'mongoose';
import bcrypt from 'bcrypt';

const salt: number = 12;

const UserSchema: Schema<IUser> = new Schema(
    email: 
        type: String,
        required: true,
        unique: true,
    ,
    name: 
        type: String,
        required: true,
        minlength: 3,
        maxlength: 32,
    ,
    password: 
        type: String,
        required: true,
    ,
);

// * Hash the password befor it is beeing saved to the database
UserSchema.pre('save', function (next: (err: Error | null) => void) 
    // * Make sure you don't hash the hash
    if (!this.isModified('password')) 
        return next(null);
    
    bcrypt.hash(this.password, salt, (err: Error, hash: String) => 
        if (err) return next(err);
        this.password = hash;
    );
);

UserSchema.methods.comparePasswords = function (
    candidatePassword: String,
    next: (err: Error | null, same: Boolean | null) => void,
) 
    bcrypt.compare(candidatePassword, this.password, function (err, isMatch) 
        if (err) 
            return next(err, null);
        
        next(null, isMatch);
    );
;

export interface IUser extends Document 
    email: String;
    name: String;
    password: String;

【问题讨论】：

这个问题可能对你有帮助：***.com/questions/65704763/…>.

【参考方案1】：

TypeScript 的基本类型有：string、boolean、number 等。参见Basic Types。但是您正在使用 javascript 数据类型的构造函数（String、Boolean 等）。见JavaScript data types and data structures

正确方法：

import  Schema, Document  from 'mongoose';
import bcrypt from 'bcrypt';

const salt: number = 12;

const UserSchema: Schema<IUser> = new Schema(
  email: 
    type: String,
    required: true,
    unique: true,
  ,
  name: 
    type: String,
    required: true,
    minlength: 3,
    maxlength: 32,
  ,
  password: 
    type: String,
    required: true,
  ,
);

// * Hash the password befor it is beeing saved to the database
UserSchema.pre('save', function (this: IUser, next: (err?: Error | undefined) => void) 
  // * Make sure you don't hash the hash
  if (!this.isModified('password')) 
    return next();
  
  bcrypt.hash(this.password, salt, (err: Error, hash: string) => 
    if (err) return next(err);
    this.password = hash;
  );
);

UserSchema.methods.comparePasswords = function (
  candidatePassword: string,
  next: (err: Error | null, same: boolean | null) => void,
) 
  bcrypt.compare(candidatePassword, this.password, function (err, isMatch) 
    if (err) 
      return next(err, null);
    
    next(null, isMatch);
  );
;

export interface IUser extends Document 
  email: string;
  name: string;
  password: string;
  comparePasswords(candidatePassword: string, next: (err: Error | null, same: boolean | null) => void): void;

软件包版本：

"mongoose": "^5.7.11"
"@types/mongoose": "^5.5.32"
"typescript": "^3.7.2"