Undocumented API to Post Folders

Hello everyone!

I am currently working on a project where I need to create folders in over 200 workspaces.

I am using an undocumented API for this task, as there is no official documentation available. However, I am facing an issue with generating the token automatically within the script.

For example, with the Power BI REST APIs, I can use the Get-PowerBIAccessToken function to obtain the token, but this method does not work in my current situation.

Does anyone know how I can achieve this?

Thanks in advance!