I want to create product attributes and attribute sets automatically, because I have many of them. I decided to use the REST API from Magento (v2.4), because it seems quite powerful and when I have learned how to use it, I could automate more stuff.
Unfortunately, I am getting stuck at the very beginning. I am trying to setup Postman to test some simple (standard) REST requests.
I was able to generate a token using the following Postman config: