...
Ensure YOUR-SITE-URL matches your site's wwwroot.
Next, follow the steps to install the Postman Interceptor browser extension
Then in the Postman Interceptor extension, go Follow the steps to ‘Sync Cookies’ , and then add the domain for using your site’s wwwroot, e.g. integration.totara83 from the Postman documentation here
Once your cookies are synced to Postman Desktop (via the instructions above/these instructions), sign in to your Totara site in your browser as the user you want to run the requests as
...