Express.js is a Node.js web framework that has gained immense popularity due to its simplicity. It has easy-to-use routing and simple support for view engines, putting it far ahead of the basic Node HTTP server.
However, starting a new Express application requires a certain amount of boilerplate code: starting a new server instance, configuring a view engine, and setting up error handling.
Although there are various starter projects and boilerplates available, Express has its own command-line tool that makes it easy to start new apps, called the express-generator.
What is Express?
Express has a lot of features built in, and a lot more features you can get from other packages that integrate seamlessly, but there are three main things it does for you out of the box:
Routing. This is how /home /blog and /about all give you different pages. Express makes it easy for you to modularize this code by allowing you to put different routes in different files.
Middleware. If you’re new to the ..