I'm trying to understand how MongoDB works.
I created a local MongoDB with the following collection:
db.user.find().pretty()
{
"_id" : ObjectId("5a05844833a9b3552ce5cfec"),
"firstname" : "Emanuel",
"lastname" : "Mars",
"username" : "mae",
"email" : "myEmail#email.ch",
"passwort" : "mae",
"role" : 1
}
Now, I want to connect to the DB with Express.
The connection works, but I don't get any data.
This is the model I created:
var userSchema = new mongoose.Schema({
firstname: { type: String },
lastname: { type: String },
username: { type: String },
email: { type: String },
passwort: { type: String },
role: { type: Number }
}, { collection : 'user' });
module.exports = mongoose.model('user', userSchema);
And this is how I want to get all Users in the collection user:
var User = require('../../models/user');
User.find({}, function (err, user) {
console.log('yes', user);
});
Upon success, it should handle a login process with users from the MongoDB.
Solved:
I forgot to add the DB name at the end of the connect URL.
//server.js
var configDB = require('./config/database.js');
mongoose.connect(configDB.url);
const db = mongoose.connection;
db.on('error', () => {
console.log('DB connection Error');
});
db.once('open', () => {
console.log('DB is connected');
});
require('./config/passport')(passport);
//user.js
const mongoose = require('mongoose');
const bcrypt = require('bcrypt-nodejs');
var userSchema = new mongoose.Schema({
firstname: { type: String },
lastname: { type: String },
username: { type: String },
email: { type: String },
passwort: { type: String },
role: { type: Number }
}, { collection : 'user' });
userSchema.methods.generateHash = function(password) {
return bcrypt.hashSync(password, bcrypt.genSaltSync(8), null);
};
userSchema.methods.validPassword = function(password) {
return bcrypt.compareSync(password, this.local.password);
};
module.exports = mongoose.model('user', userSchema);
Related
I'm learning the MERN stack and trying to create an authentication, but now I have a problem, whenever I'm trying to register, I have an error 'TypeError: User.create is not a function'.
I think that I have a problem with user model or export. Please help
INDEX.JS
const express = require("express");
const mongoose = require("mongoose");
const cors = require("cors");
const dotenv = require("dotenv");
const app = express();
const User = require("./models/User");
dotenv.config({ path: "./.env" });
app.use(express.json());
app.use(cors());
mongoose.connect(process.env.MBD_CONNECT, { useNewUrlParser: true }, (err) => {
if (err) return console.error(err);
console.log("Connected to MongoDB");
});
app.post("/api/registr", async (req, res) => {
console.log(req.body);
try {
const user = await User.create({
firstName: req.body.firstName,
lastName: req.body.lastName,
email: req.body.email,
password: req.body.password,
});
res.json({ status: "ok" });
} catch (err) {
console.log(err);
res.json({ status: "error", error: "Duplicate email" });
}
});
app.post("/api/login", async (req, res) => {
const user = await User.findOne({
email: req.body.email,
password: req.body.password,
});
if (user) {
return res.json({ status: "ok", user: true });
} else {
return res.json({ status: "error", user: false });
}
});
app.listen(3001, () => {
console.log("SERVER RUNS PERFECTLY!");
});
USER.JS (MODEL)
const mongoose = require("mongoose");
const User = new mongoose.Schema({
firstName: { type: String, required: true },
lastName: { type: String, required: true },
email: { type: String, required: true, unique: true },
password: { type: String, required: true },
});
const model = mongoose.model("UserData", User);
module.exports = User;
You're exporting the schema, not the model. create is a method of mongoose Model class, see document here.
const model = mongoose.model("UserData", User);
module.exports = User; // <------ problem here
It should be:
const model = mongoose.model("UserData", User);
module.exports = model;
Your model file please update with the following code snip
const mongoose = require("mongoose");
const User = new mongoose.Schema({
firstName: { type: String, required: true },
lastName: { type: String, required: true },
email: { type: String, required: true, unique: true },
password: { type: String, required: true },
}, { collection : 'UserData'});
const model = mongoose.model("UserData", User);
module.exports = User;
I want to use mongoose discriminator for my project to create a collection of users in which there is a document of owner which I want to implement using discriminators. But I am getting an error of
throw new Error('The 2nd parameter to mongoose.model() should be a ' +
^
Error: The 2nd parameter to mongoose.model() should be a schema or a POJO
at Mongoose.model (D:\Github\Food-Delivery-Website\node_modules\mongoose\lib\index.js:473:11)
at Object. (D:\Github\Food-Delivery-Website\models\Owner.js:21:27)
Code is given below:
// This file is models/User.js
const mongoose = require('mongoose');
const { Schema } = mongoose;
const options = { discriminatorKey: 'kind' };
const UserSchema = new Schema(
{
userName: {
type: String,
required: true,
unique: true,
},
restOwned: {
// type: [Schema.Types.ObjectId],
type: Number,
},
},
options,
);
module.exports = mongoose.model('User', UserSchema);
Below is the next file
// This file is models/Owner.js
const mongoose = require('mongoose');
const { Schema } = mongoose;
const User = require('./User');
const OwnerSchema = User.discriminator(
'Owner',
new Schema({
isOwner: {
type: Boolean,
required: true,
},
restName: {
type: String,
required: true,
},
}),
);
module.exports = mongoose.model('Owner', OwnerSchema);
Then I import these two files in userController.js
//This file is controllers/userController.js
const User = require('../models/User');
const Owner = require('../models/Owner');
exports.addUser = async (req, res) => {
try {
const newUser = new User({
userName: req.body.userName,
restOwned: req.body.restOwned,
});
const user = await newUser.save();
res.status(201).json({
status: 'Success',
user,
});
} catch (err) {
res.status(500).json({
status: 'failed',
message: 'Server Error: Failed Storing the Data.',
err,
});
}
};
exports.addOwner = async (req, res) => {
try {
const newOwner = new Owner({
isOwner: req.body.isOwner,
restName: req.body.restName,
});
const owner = await newOwner.save();
res.status(201).json({
status: 'Success',
owner,
});
} catch (err) {
res.status(500).json({
status: 'failed',
message: 'Server Error: Failed Storing the Data.',
err,
});
}
};
What am I doing wrong here?
enter image description here
The Model.discriminator() method returns a Model.
So you can directly export the discriminator and use it as the model
// This file is models/Owner.js
const mongoose = require('mongoose');
const { Schema } = mongoose;
const User = require('./User');
//Directly export the discriminator and use it as the model
module.exports = User.discriminator(
'Owner',
new Schema({
isOwner: {
type: Boolean,
required: true,
},
restName: {
type: String,
required: true,
},
}),
);
//module.exports = mongoose.model('Owner', OwnerSchema);
I'm new at elastic and I'm facing error...I try to follow documentation and some tutorial that I found but on first step I get error that I'm not able to fix :(
This is my code
const mongoose = require('mongoose')
const mongoosastic = require('mongoosastic')
const userSchema = new mongoose.Schema({
name: { type: String, es_indexed: true },
email: { type: String },
city: { type: String }
})
userSchema.plugin(mongoosastic, {
"host": "localhost",
"port": 9200
})
const User = mongoose.model('elastic', userSchema);
User.createMapping(function (err, mapping) {
if (err) {
console.log("error creating mapping");
console.log(err);
} else {
console.log("Mapping successfully created");
console.log(mapping);
}
});
module.exports = User;
And this is photo of the error
I'm new to MongoDB/Mongoose and trying to figure out how to map relationships between Schema. I don't think issue is with .populate(). At creation of new user and clients, I do not see the relationship reflected in collection
User (login via local/social) has many Clients.
A set of Clients belong to 1 User
Is this the correct way to declare foreign key? {type: Schema.Types.ObjectId, ref: 'Client'}
Should both Schema have the each other's foreign key to relate to one another?
Is there any additional code required when creating User/Client in order for the data from foreign key to show up? I read something about populate()
User
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var userSchema = new Schema({
local: {
id: String,
email: String,
password: String,
name: String,
mobile: String,
clients: {type: Schema.Types.ObjectId, ref: 'Client'}
},
google: {
id: String,
token: String,
email: String,
name: String,
clients: {type: Schema.Types.ObjectId, ref: 'Client'}
}
});
module.exports = mongoose.model('User', userSchema);
Client
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var clientSchema = new Schema({
id: String,
firstname: String,
lastname: String,
mobile: String,
user: {type: Schema.Types.ObjectId, ref: 'User'}
});
module.exports = mongoose.model('Client', clientSchema);
Create User
app.post("/api/user", function (req, res) {
const user = req.body;
console.log(user);
User.findOne({ 'local.email': user.email },
function (err, result) {
if (err) {
console.log(err);
handleError(err, res);
return;
}
if (result) {
res.status(500).send("Email already exists in database");
} else {
var newUser = new User();
newUser.local.password = generateHash(user.password);
newUser.local.email = user.email;
newUser.local.name = user.name;
newUser.local.mobile = user.mobile;
newUser.save(function (err, result) {
res.status(201).send("User added to database");
});
}
});
});
Create Client
app.post("/api/client", function (req, res) {
const client = req.body;
console.log(client);
Client.findOne({
$and: [
{ firstname: client.firstname },
{ lastname: client.lastname }
]
},
function (err, result) {
if (err) {
console.log(err);
handleError(err, res);
return;
}
if (result) {
res.status(500).send({msg:"Client already exists in database"});
} else {
var newClient = new Client();
newClient.firstname = client.firstname;
newClient.lastname = client.lastname;
newClient.mobile = client.mobile;
newClient.save(function (err, result) {
res.status(201).send("Client added to database");
});
}
});
});
I've been working on a Nodejs+Express+Mongoose API that handles user registration/login, everything works perfectly when a user signs up, but when the user wants to login it says it can't find the user. Let me show you the code:
module.exports.registerUser = (req, res) => {
var user = new User();
user.email = req.body.email;
user.name = req.body.name;
user.setPassword(req.body.password);
user.save((err) => {
var token;
token = user.generateJwt();
res.status(200);
res.json({
'token': token,
'user': user,
});
});
};
When I register (I'm testing this with Postman) I get this message, showing everything it's OK:
{
"token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE0ODg1MDcwNjUsImlhdCI6MTQ4ODQyMDY2NX0.GD0NehQ1EYEnOKx2OJWALpkHB8u5N_9Zjm1dcuEdl7I",
"user": {
"__v": 0,
"name": "Stack Overflow",
"email": "stackoverflow#stackoverflow.com",
"_id": "58b77f39cf5e8d5f3ffdb4ff"
}
}
The password gets hashed, that's why the JSON doesn't contain it.
And this is the code for user login:
module.exports.loginUser = (req, res) => {
var password = req.body.password;
var email = req.body.email;
User.findOne({'email': email}, (err, user) => {
if (err) {
res.status(500).json(err);
}
if (user) {
if (!user.validPassword(password)) {
res.status(401).send({
message: 'Wrong password.'
});
} else {
token = user.generateJwt();
res.status(200);
res.json({
'token': token,
'user': user
});
}
} else {
res.status(404).send({
message: 'No user was found.'
});
}
});
}
But every time I hit the login button on postman with the same password and email, I get this:
{
"message": "No user was found."
}
And this is the user schema:
'use strict'
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var crypto = require('crypto');
var jwt = require('jsonwebtoken');
var secret = require('../config/secret');
var userSchema = new Schema({
email: {
type: String,
required: true,
unique: true
},
name: {
type: String,
required: true
},
age: {
type: Number,
required: false
},
schoolID: {
type: String,
required: false,
unique: false
},
university: {
type: String,
required: false
},
area: {
type: mongoose.Schema.Types.ObjectId,
ref: 'Area'
},
project: {
type: mongoose.Schema.Types.ObjectId,
ref: 'Project'
},
hash: String,
salt: String
});
userSchema.methods.setPassword = (password) => {
this.salt = crypto.randomBytes(16).toString('hex');
this.hash = crypto.pbkdf2Sync(password, this.salt, 1000, 64, 'sha1').toString('hex');
};
userSchema.methods.validPassword = (password) => {
this.hash = crypto.pbkdf2Sync(password, this.salt, 1000, 64, 'sha1').toString('hex');
return this.hash === hash;
};
userSchema.methods.generateJwt = () => {
var expiry = new Date();
expiry.setDate(expiry.getDate() + 1);
return jwt.sign({
_id: this._id,
email: this.email,
name: this.name,
exp: parseInt(expiry.getTime() / 1000),
}, secret.secret);
};
var User = mongoose.model('User', userSchema);
module.exports = User;
I can't find the solution to this problem, because the way I see it, everything should be working just nice. Any ideas on why this isn't working?
Update:
This is for checking the email is being sent correctly:
{
"message": "No user was found. User: stackoverflow#stackoverflow.com password: stackoverflow"
}