Express is Node.js web application framework that provides a robust set of features for web and mobile applications. Express provides a thin layer of fundamental web application feature, without obscuring Node.js.
Express.js is a node.js framework to connect middleware for web use. Just HTTP module it needs lots of work parsing the payload, cookies, storing sessions, selecting route patterns in this express.js is in high use. Help to eliminate long trail of code within node.js instead using express.js.
Express.js provides a robust set of features for web and mobile applications.
Add extra layer as fundamental web application feature without obscuring Node.js
Creating robust APIs with HTTP utility methods and middleware as it require
Building framework for Node.js with express.js. Several frameworks built on express.js