request: `utoipa` feature

[dsgallups]

Hello! I'm working on a little hobby project at the moment. I use the utoipa crate to generate my openapi spec. Though GeoJSON is a common type in typescript syntax, I am using some of the specific subsets of geojson in this crate.

This feature request might be controversial, but I'll nonetheless send up a PR to gauge that response. 🙂

[lnicola]

What would this imply, a #[cfg_attr(feature = "utoipa", derive(ToSchema))]?

Can it be a newtype in a geojson-utoipa crate? One issue I see is that stacking multiple derives gets problematic.

[dsgallups]

I agree! Especially since the GeoJson type isn't actually serializable. Could be interesting :)

[lnicola]

Especially since the GeoJson type isn't actually serializable

Isn't it? Don't we have a serde feature?

[dsgallups]

I think the issue would be the orphan rule. It would be possible to create a "fake" schema type, but that would require users to manually create fake types for any type that requires the "fake" geojson