![]() ![]() Res.send("You visited this page " + _views + " times") Var session = require('express-session') Īpp.use(session()) Var cookieParser = require('cookie-parser') In the following example, we will create a view counter for a client. We can add more properties to the session object. Whenever we make a request from the same client again, we will have their session information stored with us (given that the server was not restarted). The session middleware handles all things for us, i.e., creating the session, setting the session cookie and creating the session object in req object. Never use this in production environments. In this example, we will use the default store for storing sessions, i.e., MemoryStore. We will put the session and cookie-parser middleware in place. We will need the Express-session, so install it using the following code. Information associated with the client is stored on the server linked to this ID. You assign the client an ID and it makes all further requests using that ID. But they are both readable and on the client side. Cookies and URL parameters are both suitable ways to transport data between the client and the server. nnect( is stateless in order to associate a request to any other request, you need a way to store user data between HTTP requests. const mongoose = require('mongoose') Ĭonst passportLocalMongoose = require('passport-local-mongoose') Setting up user schema with MongoDBĬreate a new file in the root directory named userDetails.js. The req.logout() is a passport method that logs out the user. We are also passing the title of the pages through the title variable. Otherwise, it’ll redirect to the login route. Inside the POST route, the thenticate middleware authenticates the user with local strategy, and, if the user succeeds in logging in, it’ll redirect to the secret route. The connectEnsureLogin.ensureLoggedIn() middleware in the secret route ensures that the user is prohibited from entering the page without logging in. First, we have added the necessary packages. Install the dev dependency using npm i -D nodemon, then change the scripts section of the package.json file with these two lines: "scripts": )Īs you can see from the above code, we have three GET routes and one POST route. Npm i express mongoose ejs express-ejs-layouts dotenv connect-ensure-login passport passport-local-mongoose express-session express-session: to create and manage the sessions.passport and passport-local-mongoose: for implementing authentication.connect-ensure-login: this protects the pages that require authentication.dotenv: this package loads the environment variables from a file called.express-ejs-layouts: this will be used for layouts.mongoose: the MongoDB driver for Node.js will be used to connect with MongoDB.express: we will use the Express framework for our web application.Create a new folder and initialize it with npm init -y. Once we are done creating a database, let’s initialize the folder with npm. Initializing Node and installing the packages In either case, create a MongoDB database first and store the SRV URI in the. ![]() You can use your self-hosted version of MongoDB, or you can use MongoDB Atlas. env file to store keys, an index.js file as an app starting point, and a userDetails.js file for Mongoose schema.īuilding an authentication system with Passport, passport-local-mongoose, and MongoDB is extremely simple, but before moving forward to building the application, we will need a MongoDB cluster. The views folder contains the ejs files that will be displayed, and the layout folder contains the ejs layout code. Here, the routes folder contains the file for all the routes. Creating the folder structure of the Node appįirst, let’s create specific folders for our files, like so: We are going to use the mongoose-local strategy in this article to implement the authentication. Using Passport makes it easy to integrate more than one type of authentication into the application, too. The Passport library provides more than 500 authentication mechanisms, including OAuth, JWT, and simple username and password based authentication. With it, authentication can be easily integrated into any Node- and Express-based app. Passport is a popular, modular authentication middleware for Node.js applications. In this article, we will implement authentication in a Node.js application using the Passport library and MongoDB. And, if it’s not implemented correctly, the authentication process can lead to vulnerabilities within a system. Implementing application authentication from scratch can be a huge headache for developers. Using Passport for authentication in Node.js Subha Chanda Follow Subha is a web developer who is passionate about learning and experimenting with new things. ![]()
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