Expand description
Used to do reference-to-value conversions thus not consuming the input value.
This is mainly used with State
to extract “substates” from a reference to main application
state.
See State
for more details on how library authors should use this trait.
This trait can be derived using #[derive(axum_macros::FromRef)]
.
[#[derive(axum_macros::FromRef)]
]: https://docs.rs/axum-macros/latest/axum_macros/derive.FromRef.html