When you are developing an application that addresses a RESTful web service. When you are developing a RESTful web service and want to make sure it works as expected, is accessible in compliance with the specification, and responds correctly. There are two main use cases when you need to compose and run HTTP requests: Open the Marketplace tab, find the HTTP Client plugin, and click Install (restart the IDE if prompted). Press Control+Alt+S to open the IDE settings and then select Plugins.
This functionality relies on the HTTP Client plugin, which you need to install and enable.
