Jquery.post Use on RPA

How can I use jquery.post on my workflow ?

Where and more importantly, WHY would you want that ?
If you need to send (post) data you should do it from NodeRed or using Invoke Code, and not the browser.

I will use invoke code Allan. Thank you very much for your help. Also when I do it with invoke code how can I do async await?

Invoke code does not support await ( but not a bad idea , I might add that at some point )

Here is a few rest examples. ( using get thou )