What is Express

Express is a minimal and flexible Node.js web application framework that provides a robust set of features for web and mobile applications.

Framework is an application that has pre-defined functions and designs that are often used during system development. In other words, it allows you to develop web applications more efficiently with shorter programs.

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APIs

With a myriad of HTTP utility methods and middleware at your disposal, creating a robust API is quick and easy.

Performance

Express provides a thin layer of fundamental web application features, without obscuring Node.js features that you know and love.

How to use Express

To start with, you should have the Node and the npm(node package manager) installed. Confirm that node and npm are installed by running the following commands in your terminal.

node -v
npm -v

If you already have npm, now we can install Express.

To install Express and add it to our package.json file, use the following command

npm install — save express

Using Express

Whenever we create a project using npm, we need to provide a `package.json` file, which has all…