Developers may want to test the protocol independent of their implementation by making use of Postman.
When configuring Postman the Headers must have an additional attribute added to set Content-Type to the value “application/json” as shown below.
The Body should be set to the JSON as defined in this document to execute the command that is being tested as shown below :
The result received in the response is displayed in the pane below the request. In this case the device 20605360 is not online so the result informs us of that.