Prior to setting up the environment, you need to follow these steps:
Install a web-based REST client application of your choosing.
In this tutorial, we have used Postman, a free third-party web-based REST client application used to test and explore RESTful APIs. We are not responsible for changes made to the Postman software that may affect the interaction of Postman with our software.
If using Postman, download the sample JSON files that are available in the Attachments of this tutorial. For details, see Import your environment and request collection.