Steps to use Passport.js middleware in Express
Step 1: In the first step, we will create the new folder by using the below command in the terminal.
mkdir folder-name
cd folder-name
Step 2: After creating the folder, initialize the NPM using the below command. Using this the package.json file will be created.
npm init-y
Step 3: Now, we will install all the dependencies for our project using the below command.
npm install express passport passport-local express-session
Project Structure:
The updated dependencies in package.json file will look like:
"dependencies": {
"express": "^4.18.2",
"express-session": "^1.17.3",
"passport": "^0.7.0",
"passport-local": "^1.0.0"
}
Explain the use of passport.js for authentication in Express applications.
Authentication is an important aspect of maintaining the overall security of the application. As Express.js is the server-side language, it is important to secure the application with authentication. So we can use Passport.js which is the authentication middleware that has a modular way to implement the authentication strategies which includes the OAuth, username/password, and more authentication features.