mongoose password validation

YOU.com answered on September 12, 2023 Popularity 6/10 Helpfulness 3/10

answer mongoose password validation

mongoose password validation

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const mongoose = require('mongoose');
const bcrypt = require('bcrypt');

// Define a user schema
const userSchema = new mongoose.Schema({
  username: {
    type: String,
    required: true,
    unique: true
  },
  password: {
    type: String,
    required: true,
    minlength: 6 // Minimum password length requirement
  }
});

// Before saving a user, hash the password
userSchema.pre('save', async function(next) {
  if (!this.isModified('password')) {
    return next();
  }
  
  // Generate a salt and hash the password
  const salt = await bcrypt.genSalt(10);
  this.password = await bcrypt.hash(this.password, salt);
  
  next();
});

// Add a method to compare entered password with the hashed password
userSchema.methods.comparePassword = async function(password) {
  return await bcrypt.compare(password, this.password);
}

// Create the User model
const User = mongoose.model('User', userSchema);

// Example usage
const newUser = new User({
  username: 'example_user',
  password: 'password123'
});

newUser.save()
  .then(() => console.log('User created.'))
  .catch(error => console.log(error));

// To validate a user's entered password
User.findOne({ username: 'example_user' })
  .then(user => {
    if (user) {
      user.comparePassword('password123')
        .then(isMatch => {
          if (isMatch) {
            console.log('Password is valid.');
          } else {
            console.log('Invalid password.');
          }
        })
        .catch(error => console.log(error));
    } else {
      console.log('User not found.');
    }
  })
  .catch(error => console.log(error));

Popularity 6/10 Helpfulness 3/10 Language javascript

Source: Grepper

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Contributed on Sep 12 2023

YOU.com

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mongoose password validation

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