checkpoint

axum-extra/src/routing/mod.rs

@@ -3,7 +3,7 @@
 use axum::{body::Body, Router};
 
 mod resource;
-mod typed_path;
+pub mod typed_path;
 
 pub use self::{resource::Resource, typed_path::TypedPath};
 

axum-extra/src/routing/typed_path.rs

@@ -1,10 +1,25 @@
+#![allow(missing_docs)]
+
+use axum::extract::{FromRequest, Path};
+use serde::de::DeserializeOwned;
 use std::borrow::Cow;
 
-/// TODO
-pub trait TypedPath {
-    /// TODO
+/// ```rust
+/// use axum_macros::TypedPath;
+///
+/// #[derive(TypedPath)]
+/// #[typed_path("/users/:id")]
+/// struct UsersShow {
+///     id: u32,
+/// }
+/// ```
+pub trait TypedPath<B>: FromRequest<B> + DeserializeOwned {
     const PATH: &'static str;
 
-    /// TODO
     fn path(&self) -> Cow<'static, str>;
 }
+
+// pub trait FirstElementIsPath {}
+// impl<P> FirstElementIsPath for (Path<P>,) {}
+// impl<P, T1> FirstElementIsPath for (Path<P>, T1) {}
+// impl<P, T1, T2> FirstElementIsPath for (Path<P>, T1, T2) {}