현재 시간을 출력하는 페이지 작성

.editorconfig

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+root = true
+
+[*]
+end_of_line = lf
+charset = utf-8-bom

.gitignore

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+/target
+Cargo.lock

Cargo.toml

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+[package]
+name = "rust-simple-web-api"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+axum = "0.8.1"
+chrono = "0.4.40"
+tokio = { version = "1.44.1", features = ["full"] }

src/main.rs

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+use tokio::signal;
+use axum::Router;
+use axum::routing::get;
+// use axum::response::Html;
+use chrono::Local;
+
+#[tokio::main]
+async fn main() {
+    let listener = tokio::net::TcpListener::bind("0.0.0.0:3000")
+        .await
+        .unwrap();
+
+    println!("listening on {}", listener.local_addr().unwrap());
+    axum::serve(listener, router())
+        .with_graceful_shutdown(shutdown_signal())
+        .await
+        .unwrap();
+}
+
+async fn shutdown_signal() {
+    let ctrl_c = async {
+        signal::ctrl_c()
+            .await
+            .expect("failed to listen for ctrl-c event");
+    };
+
+    #[cfg(unix)]
+    let terminate = async {
+        signal::unix::signal(signal::unix::SignalKind::terminate())
+            .expect("failed to install signal handler")
+            .recv()
+            .await;
+    };
+
+    #[cfg(not(unix))]
+    let terminate = std::future::pending::<()>();
+
+    tokio::select! {
+        _ = ctrl_c => {},
+        _ = terminate => {},
+    };
+}
+
+pub fn router() -> Router {
+    Router::new()
+        .route("/", get(root))
+}
+
+async fn root() -> axum::response::Html<String> {
+
+    let current_time = Local::now().format("%Y-%m-%d %H:%M:%S").to_string();
+    axum::response::Html(format!("<h1>Current Time: {}</h1>", current_time))
+}
+
+// pub fn router() -> Router {
+//     Router::new()
+//         .route("/", get(root))
+//         .nest("/api", nest_router())
+// }
+
+// async fn root() -> axum::response::Html<String> {
+//     axum::response::Html("<h1>root</h1>".to_string())
+// }
+
+// pub fn nest_router() -> Router {
+//     Router::new()
+//         .route("/", get(api))
+//         .route("/test", get(handler))
+// }
+
+// async fn api() -> axum::response::Html<String> {
+//     axum::response::Html("<h1>api</h1>".to_string())
+// }
+
+// async fn handler() -> Html<String> {
+
+//     let env_0 = std::env::var("RWT_ENV_VAR_0").unwrap_or_else(|_| "FALLBACK_0".to_string());
+//     let env_1 = std::env::var("RWT_ENV_VAR_1").unwrap_or_else(|_| "FALLBACK_1".to_string());
+//     let env_2 = std::env::var("RWT_ENV_VAR_2").unwrap_or_else(|_| "FALLBACK_2".to_string());
+
+//     let combined_env = format!("RWT_ENV_VAR_0: {}<br> RWT_ENV_VAR_1: {}<br> RWT_ENV_VAR_2: {}<br>", env_0, env_1, env_2);
+//     Html(format!("<h1>{}</h1>", combined_env))
+// }
+
+// async fn add(axum::extract::Path((a, b)): axum::extract::Path<(i32, i32)>) -> Html<String> {
+//     let sum = a + b;
+//     Html(format!("<h1>Sum: {}</h1>", sum))
+// }