Let's now look at a GUI-based tool that can be used to make REST calls called Postman (https://www.getpostman.com/). For the sake of brevity, we shall look at a GET and a POST call.
The following screenshot illustrates how to make a GET request using Postman. Note how Postman allows us to view the returned JSON in an easy-to-read format:
The following screenshot shows how to make a POST request. Note that we could easily provide it with a JSON payload:
Hopefully, the previous sections and these screenshots ...