This allows the login to persist across multiple pages of the application.įirst we’ll do the following: app.use(session( The express-session package enables us to create sessions and set cookies when our users are logged in. Initialize your Node application and install these packages: For the purposes of this, the app variable refers to our express() app. The local strategy will query a database for users and leverage Express, but this tutorial will not delve into the setup of databases or Express. For the purposes of this tutorial, we’re going to combine Passport with Express (and its session add on) and Bcryptjs, and use Passport’s Local Strategy. Passport is a robust NodeJS package that easily allows a developer to incorporate user accounts and login/logout functionality into applications. If the passwords match, it logs in the user and returns the user object.Tutorial: User Authentication with Passport.js If it finds the email, it compares its password with the one from the request. Here, the program first checks whether the email is registered. Next, add a new function called emailExists(): const emailExists = async (email) => ) The goal is to only register a user if they don’t exist in the database.Ĭreate a new file called helper.js and import the database client from db.js: const client = require( "./db.js") To check if the email is already registered.For the signup endpoint, you need to create two functions: They make it easy to write unit tests and improve reusability. It’s always good practice to use individual functions to interact with the database.
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