RESTMan is an extension to work on REST APIs over http and https.
How to use:
Click on the RESTMan Icon that displays on your taskbar.
Type the url in the main input field and choose the method to use: GET/POST/PUT/DELETE/PATCH.
Click on the arrow "Send" or press Ctrl+Enter.
You'll see info about the response (time, size, type) and you'll be able to see the content response in the response section.