Ya I babel all sorts of things. I have sql queries saved in my notes for things like creating a user after I reset the project locally. Common rest queries. I create an orgmode heading for every ticket I pick up and often end up with rest and/or sql queries littered in the notes for testing and development and I can run them right from the notes and when I'm done with the ticket I can just copy/paste them into the pull request description to fill out the manual test steps for those reviewing.
https://github.com/pashky/restclient.el
I also like httpie but they seem to have gone commercial.