I created an Azure Storage Account and then a Queue Resource as follows.
And I have some messages inside of it as follows.
Now I am able to query with Postman as follows.
As you can see, the response is in xml. Is there a way I can get that in json format?
Changing that xml in the drop down to json is not helping me.
Unfortunately it is not possible to get the response in JSON format. Azure Storage Queue REST API only returns data in XML format at least as of version number 2020-10-02 (latest version at the time of providing this answer).