Add example

examples/spoofable-scheme/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+name = "spoofable-scheme"
+version = "0.1.0"
+edition = "2021"
+publish = false
+
+[dependencies]
+axum = { path = "../../axum" }
+axum-extra = { path = "../../axum-extra", features = ["scheme"] }
+tokio = { version = "1.0", features = ["full"] }
+tracing = "0.1"
+tracing-subscriber = { version = "0.3", features = ["env-filter"] }
+

examples/spoofable-scheme/src/main.rs

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+//! Example of application using spoofable extractors
+//!
+//! Run with
+//!
+//! ```not_rust
+//! cargo run -p spoofable-scheme
+//! ```
+//!
+//! Test with curl:
+//!
+//! ```not_rust
+//! curl -i http://localhost:3000/ -H "X-Forwarded-Proto: http"
+//! ```
+
+use axum::{routing::get, Router};
+use axum_extra::extract::{Scheme, Spoofable};
+use tokio::net::TcpListener;
+use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};
+
+#[tokio::main]
+async fn main() {
+    tracing_subscriber::registry()
+        .with(
+            tracing_subscriber::EnvFilter::try_from_default_env()
+                .unwrap_or_else(|_| format!("{}=debug", env!("CARGO_CRATE_NAME")).into()),
+        )
+        .with(tracing_subscriber::fmt::layer())
+        .init();
+
+    // build our application with some routes
+    let app = Router::new().route("/", get(f));
+
+    let listener = TcpListener::bind("127.0.0.1:3000").await.unwrap();
+    tracing::debug!("listening on {}", listener.local_addr().unwrap());
+    axum::serve(listener, app).await.unwrap();
+}
+
+async fn f(Spoofable(Scheme(scheme)): Spoofable<Scheme>) -> String {
+    scheme
+}