https://www.jetbrains.com/help/idea/http-response-handling-e...

Edit: I linked to the wrong doc, that one is good for hitting an auth endpoint as a first step and then using the token on subsequent requests.

For vars (including per-env vars), the documentation is here:

https://www.jetbrains.com/help/idea/exploring-http-syntax.ht...

Only issue I really have with it recently is that graphql requests are poorly documented and wonky as hell and you literally have to fight the ide to edit the query

Otherwise it's been pretty great.

Also I have nothing to do with intellij's company besides being a happily paying customer for many years.