RFC 9457: HTTP Problem Details

I like the idea, and the media type but I find the message schema to be messy and probably obsolete even before being used. In the wild, there are error message formats that are more standard, more machine processable and more convenient in my opinion.

The type being a uri looks like an useless attempt to be generic. It might have been a common base for errors, like a namespace and that would be ok but then the "error code" in itself would be missing.

I really like this spec. ASP.NET integrated it in dotnet 6 and it just makes thinking about what error should be returned from the server so much simpler.

Well… now in addition to my PyCon AU conference talk, I’ve got myself a lightning talk … fun times. I was using this with some ASP.NET 6 based experiments and didn’t realise it had an RFC behind it, I was just enjoying the nice error messages.