Customize router-generated errors (e.g. 405)

[gar1t]

Summary

The response body for a 405 error (method not allowed) is empty by default. I'd like the body to show the "canonical reason" instead - e.g. Method Not Allowed. How would I go about this?

axum version

0.7.5

[mladedav]

Currently, you'd have to add a fallback to each route as far as I know.

What I think you would want is #2251.