Sounds a lot easier than curl tbh. No need to deal with shell scripts and their insane quoting, plus you get the response straight in your editor with syntax highlighting.
How complicated are your requests? If I need to test a POST request with a JSON payload longer than a line or two, I'll go and construct my curl command in a text editor anyway, since the shell prompt / readline is not easy to edit. Once you need to start escaping single or double quotes or html payloads in the request, it quickly gets cumbersome. At that point I ditch the shell as a middleman and use the editor to submit the request for me.