How to create UUID in postman rest client

Postman UUID

{{$guid}} 
the above variable will generate UUID in Postman Rest Client

Sample request is below
========================
{
    "user":{
        "id":"{{$guid}}"
    }
    
}

Found this on Stack Overflow and tested in most recent update on Linux.

In your Pre-request Script, add this to any test you need a fresh v4 UUID in:
postman.setGlobalVariable("v4uuid", 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) { var r = Math.random()*16|0, v = c == 'x' ? r : (r&0x3|0x8); return v.toString(16); }));

Then call this in your post body, headers, wherever it's needed:
{{v4uuid}}

By now (2018-06-01) you can simply do the following: var uuid = require('uuid'); var myUUID = uuid.v4();.

you can also use their dynamic variables: https://learning.getpostman.com/docs/variables_list/

Does anyone know which version of UUID this {{randomUUID}} generates ?

Much thanks @rajbharath! 👍

you can also use their dynamic variables: https://learning.getpostman.com/docs/variables_list/

This is now located here: https://learning.getpostman.com/docs/postman/variables-and-environments/variables-list/

Does anyone know which version of UUID this {{randomUUID}} generates ?

v4