This article covers the method of installation of Postman on the Ubuntu 20.04 system. Also, we explored the method to set up Postman and how to send a request for the first time. Here, you will also learn the method of removing Postman application from system.Postman is a complete API development platform that helps you manage your APIs in every stage of development, from designing and testing, to publishing API documentation and monitoring. Postman started as a Chrome browser extension and quickly became one of the most widely used API tools by developers all over the world.Installing Postman on Ubuntu:The easiest way is to install Postman on Ubuntu is by using the snappy packaging system. Snaps are self-contained software packages that include the binary all dependencies needed to run the application. Snap packages can be installed from either the command-line or via the Ubuntu Software application.To install the Postman snap, open your terminal (Ctrl+Alt+T) and run the following command as a user with sudo privileges :$ sudo snap install postman