Select File > New > Web Service Request from the main menu. The New Web Service Request dialog will be displayed where you can input your RESTful URL directly on this dialog.
After you've created a request successfully, there will be a small icon next to the object on Tests Explorer to indicate its used method (GET, POST, PUT, DELETE)
2. In the opened editor of the new service request object, there will be two separate sections for the Request (left pane window) and Response (right pane window)
Refer to the documentation below for more details information