Open
Description
The callback API is currently consuming extra codespace. I want to remove some of it to keep only the request-based APIs. There is currently an on_get, an on_post and an on_request callback. The simplified version is to only keep on_request which covers both on_get and on_post. Typical simple programs would actually use on_get and on_post differently but adding features and making sure that everything works is harder when there so many codepaths.
A lot of documentation and tests are depending on the "old" API though, so this one will have to be slow and sure.