axum-patternslisted

# Axum Patterns ## Full Application Structure ```toml [dependencies] axum = "0.7" tokio = { version = "1", features = ["full"] } tower = "0.4" tower-http = { version = "0.5", features = ["cors", "trace", "compression-gzip", "timeout"] } serde = { version = "1", features = ["derive"] } tracing-subscriber = { version = "0.3", features = ["env-filter"] } ``` ```rust use axum::{Router, routing::get}; use std::sync::Arc; use tower::ServiceBuilder; use tower_http::{cors::CorsLayer, trace::TraceLayer, timeout::TimeoutLayer}; #[derive(Clone)] pub struct AppState { pub db: Arc<DbPool>, pub config: Arc<Config>, } pub fn create_router(state: AppState) -> Router { Router::new() .route("/health", get(health)) .nest("/api/v1/users", users::router()) .nest("/api/v1/auth", auth::router()) .layer(ServiceBuilder::new() .layer(TraceLayer::new_for_http()) .layer(CorsLayer::permissive()) .layer(TimeoutLayer::new(std::time::Duration::from_secs(30)))) .fallback(not_found) .with_state(state) } async fn health() -> &'static str { "ok" } async fn not_found() -> (axum::http::StatusCode, &'static str) { (axum::http::StatusCode::NOT_FOUND, "not found") } ``` ## Custom Extractors ```rust use axum::{async_trait, extract::FromRequestParts, http::{request::Parts, StatusCode}}; // JWT auth extractor pub struct AuthUser(pub Claims); #[async_trait] impl<S: Send + Sync> FromRequestParts<S> for AuthUser {