I am looking for a good way to save an Account to MongoDB using mongoose.
My problem is: The password is hashed asynchronously. A setter wont work here because it only works synchronous.
I thought about 2 ways:
Create an instance of the model and save it in the callback of the
hash function.
Creating a pre hook on 'save'
Is there any good solution on this problem?
The mongodb blog has an excellent post detailing how to implement user authentication.
http://blog.mongodb.org/post/32866457221/password-authentication-with-mongoose-part-1
The following is copied directly from the link above:
User Model
var mongoose = require('mongoose'),
Schema = mongoose.Schema,
bcrypt = require('bcrypt'),
SALT_WORK_FACTOR = 10;
var UserSchema = new Schema({
username: { type: String, required: true, index: { unique: true } },
password: { type: String, required: true }
});
UserSchema.pre('save', function(next) {
var user = this;
// only hash the password if it has been modified (or is new)
if (!user.isModified('password')) return next();
// generate a salt
bcrypt.genSalt(SALT_WORK_FACTOR, function(err, salt) {
if (err) return next(err);
// hash the password using our new salt
bcrypt.hash(user.password, salt, function(err, hash) {
if (err) return next(err);
// override the cleartext password with the hashed one
user.password = hash;
next();
});
});
});
UserSchema.methods.comparePassword = function(candidatePassword, cb) {
bcrypt.compare(candidatePassword, this.password, function(err, isMatch) {
if (err) return cb(err);
cb(null, isMatch);
});
};
module.exports = mongoose.model('User', UserSchema);
Usage
var mongoose = require(mongoose),
User = require('./user-model');
var connStr = 'mongodb://localhost:27017/mongoose-bcrypt-test';
mongoose.connect(connStr, function(err) {
if (err) throw err;
console.log('Successfully connected to MongoDB');
});
// create a user a new user
var testUser = new User({
username: 'jmar777',
password: 'Password123'
});
// save the user to database
testUser.save(function(err) {
if (err) throw err;
});
// fetch the user and test password verification
User.findOne({ username: 'jmar777' }, function(err, user) {
if (err) throw err;
// test a matching password
user.comparePassword('Password123', function(err, isMatch) {
if (err) throw err;
console.log('Password123:', isMatch); // -> Password123: true
});
// test a failing password
user.comparePassword('123Password', function(err, isMatch) {
if (err) throw err;
console.log('123Password:', isMatch); // -> 123Password: false
});
});
For those who are willing to use ES6+ syntax can use this -
const bcrypt = require('bcryptjs');
const mongoose = require('mongoose');
const { isEmail } = require('validator');
const { Schema } = mongoose;
const SALT_WORK_FACTOR = 10;
const schema = new Schema({
email: {
type: String,
required: true,
validate: [isEmail, 'invalid email'],
createIndexes: { unique: true },
},
password: { type: String, required: true },
});
schema.pre('save', async function save(next) {
if (!this.isModified('password')) return next();
try {
const salt = await bcrypt.genSalt(SALT_WORK_FACTOR);
this.password = await bcrypt.hash(this.password, salt);
return next();
} catch (err) {
return next(err);
}
});
schema.methods.validatePassword = async function validatePassword(data) {
return bcrypt.compare(data, this.password);
};
const Model = mongoose.model('User', schema);
module.exports = Model;
TL;DR - Typescript solution
I have arrived here when I was looking for the same solution but using typescript. So for anyone interested in TS solution to the above problem, here is an example of what I ended up using.
imports && contants:
import mongoose, { Document, Schema, HookNextFunction } from 'mongoose';
import bcrypt from 'bcryptjs';
const HASH_ROUNDS = 10;
simple user interface and schema definition:
export interface IUser extends Document {
name: string;
email: string;
password: string;
validatePassword(password: string): boolean;
}
const userSchema = new Schema({
name: { type: String, required: true },
email: { type: String, required: true, unique: true },
password: { type: String, required: true },
});
user schema pre-save hook implementation
userSchema.pre('save', async function (next: HookNextFunction) {
// here we need to retype 'this' because by default it is
// of type Document from which the 'IUser' interface is inheriting
// but the Document does not know about our password property
const thisObj = this as IUser;
if (!this.isModified('password')) {
return next();
}
try {
const salt = await bcrypt.genSalt(HASH_ROUNDS);
thisObj.password = await bcrypt.hash(thisObj.password, salt);
return next();
} catch (e) {
return next(e);
}
});
password validation method
userSchema.methods.validatePassword = async function (pass: string) {
return bcrypt.compare(pass, this.password);
};
and the default export
export default mongoose.model<IUser>('User', userSchema);
note: don't forget to install type packages (#types/mongoose, #types/bcryptjs)
I think this is a good way by user Mongoose and bcrypt！
User Model
/**
* Module dependences
*/
const mongoose = require('mongoose');
const Schema = mongoose.Schema;
const bcrypt = require('bcrypt');
const SALT_WORK_FACTOR = 10;
// define User Schema
const UserSchema = new Schema({
username: {
type: String,
unique: true,
index: {
unique: true
}
},
hashed_password: {
type: String,
default: ''
}
});
// Virtuals
UserSchema
.virtual('password')
// set methods
.set(function (password) {
this._password = password;
});
UserSchema.pre("save", function (next) {
// store reference
const user = this;
if (user._password === undefined) {
return next();
}
bcrypt.genSalt(SALT_WORK_FACTOR, function (err, salt) {
if (err) console.log(err);
// hash the password using our new salt
bcrypt.hash(user._password, salt, function (err, hash) {
if (err) console.log(err);
user.hashed_password = hash;
next();
});
});
});
/**
* Methods
*/
UserSchema.methods = {
comparePassword: function(candidatePassword, cb) {
bcrypt.compare(candidatePassword, this.password, function(err, isMatch) {
if (err) return cb(err);
cb(null, isMatch);
});
};
}
module.exports = mongoose.model('User', UserSchema);
Usage
signup: (req, res) => {
let newUser = new User({
username: req.body.username,
password: req.body.password
});
// save user
newUser.save((err, user) => {
if (err) throw err;
res.json(user);
});
}
Result
Result
The Mongoose official solution requires the model to be saved before using the verifyPass method, which can cause confusion. Would the following work for you? (I am using scrypt instead of bcrypt).
userSchema.virtual('pass').set(function(password) {
this._password = password;
});
userSchema.pre('save', function(next) {
if (this._password === undefined)
return next();
var pwBuf = new Buffer(this._password);
var params = scrypt.params(0.1);
scrypt.hash(pwBuf, params, function(err, hash) {
if (err)
return next(err);
this.pwHash = hash;
next();
});
});
userSchema.methods.verifyPass = function(password, cb) {
if (this._password !== undefined)
return cb(null, this._password === password);
var pwBuf = new Buffer(password);
scrypt.verify(this.pwHash, pwBuf, function(err, isMatch) {
return cb(null, !err && isMatch);
});
};
Another way to do this using virtuals and instance methods:
/**
* Virtuals
*/
schema.virtual('clean_password')
.set(function(clean_password) {
this._password = clean_password;
this.password = this.encryptPassword(clean_password);
})
.get(function() {
return this._password;
});
schema.methods = {
/**
* Authenticate - check if the passwords are the same
*
* #param {String} plainText
* #return {Boolean}
* #api public
*/
authenticate: function(plainPassword) {
return bcrypt.compareSync(plainPassword, this.password);
},
/**
* Encrypt password
*
* #param {String} password
* #return {String}
* #api public
*/
encryptPassword: function(password) {
if (!password)
return '';
return bcrypt.hashSync(password, 10);
}
};
Just save your model like, the virtual will do its job.
var user = {
username: "admin",
clean_password: "qwerty"
}
User.create(user, function(err,doc){});
const bcrypt = require('bcrypt');
const saltRounds = 5;
const salt = bcrypt.genSaltSync(saltRounds);
module.exports = (password) => {
return bcrypt.hashSync(password, salt);
}
const mongoose = require('mongoose')
const Schema = mongoose.Schema
const hashPassword = require('../helpers/hashPassword')
const userSchema = new Schema({
name: String,
email: {
type: String,
match: [/^(([^<>()[\]\\.,;:\s#\"]+(\.[^<>()[\]\\.,;:\s#\"]+)*)|(\".+\"))#((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/, `Please fill valid email address`],
validate: {
validator: function() {
return new Promise((res, rej) =>{
User.findOne({email: this.email, _id: {$ne: this._id}})
.then(data => {
if(data) {
res(false)
} else {
res(true)
}
})
.catch(err => {
res(false)
})
})
}, message: 'Email Already Taken'
}
},
password: {
type: String,
required: [true, 'Password required']
}
});
userSchema.pre('save', function (next) {
if (this.password) {
this.password = hashPassword(this.password)
}
next()
})
const User = mongoose.model('User', userSchema)
module.exports = User
const mongoose = require('mongoose');
var bcrypt = require('bcrypt-nodejs');
SALT_WORK_FACTOR = 10;
const userDataModal = mongoose.Schema({
username: {
type: String,
required : true,
unique:true
},
password: {
type: String,
required : true
}
});
userDataModal.pre('save', function(next) {
var user = this;
// only hash the password if it has been modified (or is new)
if (!user.isModified('password')) return next();
// generate a salt
bcrypt.genSalt(SALT_WORK_FACTOR, function(err, salt) {
if (err) return next(err);
// hash the password using our new salt
bcrypt.hash(user.password, salt, null, function(err, hash) {
if (err) return next(err);
// override the cleartext password with the hashed one
user.password = hash;
next();
});
});
});
userDataModal.methods.comparePassword = function(candidatePassword, cb) {
bcrypt.compare(candidatePassword, this.password, function(err, isMatch) {
if (err) return cb(err);
cb(null, isMatch);
});
};
// Users.index({ emaiId: "emaiId", fname : "fname", lname: "lname" });
const userDatamodal = module.exports = mongoose.model("usertemplates" , userDataModal)
//inserting document
userDataModel.findOne({ username: reqData.username }).then(doc => {
console.log(doc)
if (doc == null) {
let userDataMode = new userDataModel(reqData);
// userDataMode.password = userDataMode.generateHash(reqData.password);
userDataMode.save({new:true}).then(data=>{
let obj={
success:true,
message: "New user registered successfully",
data:data
}
resolve(obj)
}).catch(err=>{
reject(err)
})
}
else {
resolve({
success: true,
docExists: true,
message: "already user registered",
data: doc
}
)
}
}).catch(err => {
console.log(err)
reject(err)
})
//retriving and checking
// test a matching password
user.comparePassword(requestData.password, function(err, isMatch) {
if (err){
reject({
'status': 'Error',
'data': err
});
throw err;
} else {
if(isMatch){
resolve({
'status': true,
'data': user,
'loginStatus' : "successfully Login"
});
console.log('Password123:', isMatch); // -> Password123: true
}
I guess it would be better to use the hook, after some research i found
http://mongoosejs.com/docs/middleware.html
where it says:
Use Cases:
asynchronous defaults
I prefer this solution because i can encapsulate this and ensure that an account can only be saved with a password.
I used .find({email}) instead of .findOne({email}).
Make sure to use .findOne(...) to get a user.
Example:
const user = await <user>.findOne({ email });
Related
I'm currently working on a new project and I'm trying to get the login route working. But the login always fails because the User.findOne() method is always returning as null.
I've tried changing the export from the usermodel to
var User = mongoose.model('User', UserSchema, 'User');
But it hasn't change anything.
I know the connection to the database is fine because the register route works fine and saves correctly.
Login Route
router.post('/login', function (req, res) {
User.findOne({ username: req.body.username, password: req.body.password }, function (err, user) {
if (err || user == null) {
res.redirect('/login');
console.log(user);
} else {
req.session.userId = user._id;
res.redirect('/');
}
});
});
User Schema
var mongoose = require('mongoose');
var bcrypt = require('bcrypt');
var UserSchema = new mongoose.Schema({
email: {
type: String,
unique: true,
required: true,
trim: true
},
username: {
type: String,
unique: true,
required: true,
trim: true
},
password: {
type: String,
required: true
}
});
UserSchema.statics.authenticate = function (email, password, callback) {
User.findOne({ email: email }).exec(function (err, user) {
if (err) {
return callback(err);
} else if (!user) {
var err = new Error('User not found.');
err.status = 401;
return callback(err);
}
bcrypt.compare(password, hash, function (err, result) {
if (result === true) {
return callback(null, user);
} else {
return callback();
}
});
});
};
//hashing a password before saving it to the database
UserSchema.pre('save', function (next) {
var user = this;
bcrypt.hash(user.password, 10, function (err, hash) {
if (err) {
return next(err);
}
user.password = hash;
next();
});
});
var User = mongoose.model('users', UserSchema);
module.exports = User;
Database Connection
var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost:27017/wowDb', { useNewUrlParser: true });
var db = mongoose.connection;
mongoose.set('useCreateIndex', true);
db.on('error', console.error.bind(console, 'connection error:'));
db.once('open', function () { });
I used
db.users.findOne({username: "Imortalshard"});
and got the output
{
"_id" : ObjectId("5cc10cd13361880abc767d78"),
"email" : "admin#wowdb.com",
"username" : "Imortalshard",
"password" : "$2b$10$7Ln5yHFqzPw/Xz6bAW84SOVhw7.c0A1mve7Y00tTdaKzxzTph5IWS",
"__v" : 0
}
Console output from console.log(req.body) and console.log(user)
I'm waiting the user that i registered to be able to successfully login, but currently it is just redirecting me back to the login page and giving me a null reading for user in the console.
I'm pretty new with node.js and I'm trying to implement simple user registration and login form using Node.js, Express, bcrypt, express-session and mongoose.
Whenever the user log in, I want to set the value of req.session.userID to user's id. When I trace the code I can't find the problem. I followed up the tutorial in this link and everything seems to be similar.
Schema:
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var bcrypt = require('bcrypt');
var userSchema = new Schema({
teamName: {
type: String,
unique: true,
trim: true,
required: true
},
faculty: {
type: String,
required: true
},
email: {
required: true,
unique: true,
trim: true,
type: String
},
password: {
required: true,
type: String
},
score: {
type: Number,
default: 0
}
});
userSchema.pre('save', function(next) {
var user = this;
bcrypt.hash(user.password, 10, function(err, hash) {
if (err) return next(err)
user.password = hash;
next();
});
});
userSchema.statics.authenticate = (email, password, callback) => {
userModel.findOne({email: email}, (err, user) => {
if (err) return callback(err);
else if (!user) {
console.log('User not found!')
}
else {
bcrypt.compare(password, user.password, (err, result) => {
if (result) {
callback(null, true)
}
else {
return callback()
}
})
}
})
}
var userModel = mongoose.model('User', userSchema);
module.exports = userModel;
server:
var userModel = require('./../models/users');
router.post('/login', (req, res) => {
var email = req.body.email;
var password = req.body.password;
userModel.authenticate(email, password, (err, user) => {
console.log(user)
if (err) {
console.log(err)
}
else if (!user) {
console.log('Wrong Password')
}
else {
req.session.userId = user._id;
console.log(req.session.userId);
}
})
});
Where I have logged the value of req.session.userId it returns undefined! Where is the problem?
The problem is that the callback is returning TRUE. the callback should be returning the user data. callback(null, user)
bcrypt.compare(password, user.password, (err, result) => {
if (result) {
callback(null, true)
}
Should be
bcrypt.compare(password, user.password, (err, result) => {
if (result) {
callback(null, user)
}
var mongoose = require('mongoose');
var bcrypt = require('bcrypt-nodejs');
var UserSchema = new mongoose.Schema({
email: {
type: string,
unique: true,
required: true,
trim: true
},
password: {
type: string,
required: true
},
authtokens: {
type: [{ type: mongoose.Schema.Types.ObjectId, ref: 'AuthToken' }]
}
});
//hashing a password before saving it to the database
UserSchema.pre('save', function (next) {
if (this.isNew) {
bcrypt.gensalt(10, function(err, salt) {
if (err) return next(err);
bcrypt.hash(this.password, salt, null, function (err, hash){
if (err) return next(err);
this.password = hash;
console.log('user.password ', this.password);
next();
});
});
} else next();
});
I call this from a controller:
'use strict';
var mongoose = require('mongoose'),
User = mongoose.model('User'),
AuthToken = mongoose.model('AuthToken');
exports.createUser = function(req, res, next) {
if (req.body.email && req.body.password && req.body.passwordConf) {
var userData = {
email: req.body.email,
password: req.body.password,
passwordConf: req.body.passwordConf
};
//use schema.create to insert data into the db
User.create(userData, function (err, user) {
console.log('user created ', user.password);
if (err) {
return next(err);
} else {
return res.redirect('/profile');
}
});
} else {
var err = new Error("Missing parameters");
err.status = 400;
next(err);
}
};
When a createUser is called with email user#email.com, password password, I get the output:
user.password $2a$10$wO.6TPUm5b1j6lvHdCi/JOTeEXHWhYernWU.ZzA3hfYhyWoOeugcq
user created password
Also, looking directly in the database, I see this user with plain text password -> password.
Why is user having plaintext password in the database. How can I store the hash instead?
In short, you forgot you were going into a callback which has a different functional scope and you're still referring to this, which is at that time not actually the "model" instance.
To correct this, take a copy of this before you do anything like launching another function with a callback:
UserSchema.pre('save', function(next) {
var user = this; // keep a copy
if (this.isNew) {
bcrypt.genSalt(10, function(err,salt) {
if (err) next(err);
bcrypt.hash(user.password, salt, null, function(err, hash) {
if (err) next(err);
user.password = hash;
next();
});
});
}
});
An alternate approach of course is to modernize things and use Promise results with async/await. The bcrypt library which is actually the "core" and not a fork does this right out of the box:
UserSchema.pre('save', async function() {
if (this.isNew) {
let salt = await bcrypt.genSalt(10);
let hash = await bcrypt.hash(this.password, salt);
this.password = hash;
}
});
Aside from the modern approach being generally cleaner code, you also don't need to change the scope of this since we don't "dive in" to another function call. Everything gets changed in the same scope, and of course awaits the async calls before continuing.
Full Example - Callback
const { Schema } = mongoose = require('mongoose');
const bcrypt = require('bcrypt-nodejs');
const uri = 'mongodb://localhost/crypto';
var userSchema = new Schema({
email: String,
password: String
});
userSchema.pre('save', function(next) {
var user = this; // keep a copy
if (this.isNew) {
bcrypt.genSalt(10, function(err,salt) {
if (err) next(err);
bcrypt.hash(user.password, salt, null, function(err, hash) {
if (err) next(err);
user.password = hash;
next();
});
});
}
});
const log = data => console.log(JSON.stringify(data, undefined, 2));
const User = mongoose.model('User', userSchema);
(async function() {
try {
const conn = await mongoose.connect(uri);
await Promise.all(Object.entries(conn.models).map(([k,m]) => m.remove()));
await User.create({ email: 'ted#example.com', password: 'password' });
let result = await User.findOne();
log(result);
} catch(e) {
console.error(e)
} finally {
process.exit()
}
})()
Full Example - Promise async/await
const { Schema } = mongoose = require('mongoose');
const bcrypt = require('bcrypt');
const uri = 'mongodb://localhost/crypto';
var userSchema = new Schema({
email: String,
password: String
});
userSchema.pre('save', async function() {
if (this.isNew) {
let salt = await bcrypt.genSalt(10);
let hash = await bcrypt.hash(this.password, salt);
this.password = hash;
}
});
const log = data => console.log(JSON.stringify(data, undefined, 2));
const User = mongoose.model('User', userSchema);
(async function() {
try {
const conn = await mongoose.connect(uri);
await Promise.all(Object.entries(conn.models).map(([k,m]) => m.remove()));
await User.create({ email: 'ted#example.com', password: 'password' });
let result = await User.findOne();
log(result);
} catch(e) {
console.error(e)
} finally {
process.exit()
}
})()
Both show the password correctly encrypted, since we actually set the value in the model instance:
{
"_id": "5aec65f4853eed12050db4d9",
"email": "ted#example.com",
"password": "$2b$10$qAovc0m0VtmtpLg7CRZmcOXPDNi.2WbPjSFkfxSUqh8Pu5lyN4p7G",
"__v": 0
}
as a starting copypasteprogrammer I started to add some salting and hashing to my app. The creation of a new User works fine. But the authentication of a user/password in Postman gives me a hard time. I keep getting errors. Now a 500 internal service error. Who can give me a little advice?
Here the schema:
const userSchema = new Schema({
userName: { //email
type: String,
required: true,
unique: true,
trim: true
},
password: {
type: String,
required: true
}
});
// hashing and salting before saving
userSchema.pre('save', function (next) {
let user = this;
// only hash the password if it has been modified (or is new)
if (!user.isModified('password')) return next();
//generate a salt
bcrypt.genSalt(SALT_WORK_FACTOR, function (err, salt) {
if (err) return next(err);
// hash the password using our new salt
bcrypt.hash(user.password, salt, function (err, hash) {
if (err) return next(err);
// override the cleartext password with the hashed one
user.password = hash;
next();
});
});
});
mongoose.model('User', userSchema);
Here the routes:
const express = require('express');
const router = express.Router();
const ctrlAuthFiles = require('../controllers/authFiles');
router
.route('/login')
.post(ctrlAuthFiles.userLogin);
module.exports = router;
Here the controller:
const mongoose = require('mongoose'),
Schema = mongoose.Schema;
const User1 = mongoose.model('User');
//fetch user and test password verification
const userLogin = function (req, res) {
if (req.body) {
User1
.findOne({ userName: req.body.username })
.exec((err, user) => {
if (!user) {
res
.status(404)
.json({
"message": "username or password not found"
});
return;
} else if (err) {
res
.status(404)
.json(err);
return;
}
});
User1.comparePassword(req.body.password, function (err, isMatch) {
if (err) throw err;
console.log(isMatch);
});
User1.methods.comparePassword = function (candidatePassword, cb) {
bcrypt.compare(candidatePassword, this.password, function (err, isMatch) {
if (err)
return cb(err);
cb(null, isMatch);
});
}
} else {
res
.status(404)
.json({
"message": "no username or password"
});
}
};
I'm getting the following error when I try to run user.comparePassword from exports.index.post (see below) -- I pasted all code to help narrow down the problem. The UserSchema.pre('save') method works fine, but not the one in ./routes/account.js (I'm using mongoose 3)
Here is the error I get.
Caught exception: [TypeError: Object { username: 'test4',
email: 'test4#test.com',
password: '$2a$10$Ix5vCuVYGIU7AmXglmfIxOyYnF6CiPJfw9HLSAGcRDxMJEttud/F6',
_id: 505fee7ce28f10711e000002,
__v: 0 } has no method 'comparePassword']
## ./app.js
app.post('/account', routes.account.index.post);
## ./models/user.js
var mongoose = require('mongoose')
, bcrypt = require('bcrypt')
, Schema = mongoose.Schema
, db = mongoose.createConnection('localhost', 'mydb');
var UserSchema = new Schema({
username : { type: String, required: true, index: { unique: true }, trim: true }
, email : { type: String, required: true, index: { unique: true }, trim: true, lowercase: true }
, password : { type: String, required: true, trim: true }
});
UserSchema.pre('save', function(next) {
var user = this;
// only hash the password if it has been modified (or is new)
if (!user.isModified('password')) return next();
// generate a salt
bcrypt.genSalt(function(err, salt) {
if (err) return next(err);
// hash the password along with our new salt
bcrypt.hash(user.password, salt, function(err, hash) {
if (err) return next(err);
// override the cleartext password with the hashed one
user.password = hash;
next();
});
});
});
//compare supplied password
UserSchema.methods.comparePassword = function(candidatePassword, cb) {
bcrypt.compare(candidatePassword, this.password, function(err, isMatch) {
if (err) return cb(err);
cb(null, isMatch);
});
};
module.exports = db.model('User', UserSchema);
##./routes/account.js
/*
* GET account home page.
*/
exports.index = {};
exports.index.get = function(req, res){
var d = { title: 'Edit account' };
res.render('account', { d: d } );
};
exports.index.post = function(req, res){
req.assert('email', 'Enter email').notEmpty().isEmail();
req.assert('password', 'Enter password').notEmpty().isAlphanumeric().len(5,20);
//user must confirm password
if ( req.body.password_new ) {
req.assert('password_new', 'Enter password').notEmpty().isAlphanumeric().len(5,20);
req.assert('password_new_confirm', 'Passwords must match').equals(req.body.password);
}
res.locals.err = req.validationErrors(true);
if ( res.locals.err ) {
var d = { title: 'Edit account' };
res.render('account', { d: d } );
return;
}
var User = require('../models/user')
, mongoose = require('mongoose')
, db = mongoose.createConnection('localhost', 'mydb');
var user = db.model('User', User.UserSchema);
user.find({username: req.session.user.username }, function(err, user){
if ( err ) return next(err);
/*********** THIS IS WHERE THE ERROR OCCURS **************/
user.comparePassword(req.body.password, function(err, isMatch) {
console.log("isMatch", isMatch);
if (err) next(err);
if (!isMatch) {
req.flash('error', 'Woops, looks like you mistyped your password.');
req.session.user = user;
res.locals.user = user;
res.redirect('/account');
return;
}
//user is authenticated
//session length
console.log(req.body);
});
});
};
user.find queries for 0 or more docs, so the second parameter to its callback is an array of docs, not a single doc. user.findOne queries for 0 or 1 docs, so the second parameter to its callback is either null or that single doc. So you're trying to call your schema's method on a JavaScript Array which of course won't work. Change that find call to a findOne and it should work.