In fact, if you don’t use Express.js, then you have to do a lot of complex programming to build an efficient API. Express.js enhances the functionality of the node.js. The JavaScript library of Express.js helps the programmers to build efficient and fast web apps. Express.js is the backend part of MEAN and manages routing, sessions, HTTP requests, error handling, etc. Express.js makes it easier to manage web applications.It is a part of a javascript based technology called MEAN software stack which stands for MongoDB, ExpressJS, AngularJS, and Node.js. It is important to learn javascript and HTML to be able to use Express.js. Express.js is lightweight and helps to organize web applications on the server-side into a more organized MVC architecture. You can build a single page, multi-page, or hybrid web applications using Express.js. Since Express.js only requires javascript, it becomes easier for programmers and developers to build web applications and API without any effort.Įxpress.js is a framework of Node.js which means that most of the code is already written for programmers to work with. Web applications are web apps that you can run on a web browser. It is used for designing and building web applications quickly and easily.

Express.js is a free and open-source web application framework for Node.js.

Express framework