Add logging and request limits

server/src/main.rs

@@ -1,6 +1,12 @@
 use std::sync::Arc;
 
 use tokio::net::TcpListener;
+use tower_http::limit::RequestBodyLimitLayer;
+use tower_http::trace::TraceLayer;
+use tracing::info;
+use tracing_subscriber::layer::SubscriberExt;
+use tracing_subscriber::util::SubscriberInitExt;
+use tracing_subscriber::EnvFilter;
 
 use doctate_server::config::Config;
 
@@ -9,10 +15,35 @@ async fn main() {
     dotenvy::dotenv().ok();
     let config = Arc::new(Config::from_env());
 
-    let addr = format!("0.0.0.0:{}", config.server_port);
-    println!("Server starting on {addr}");
+    // Logging: stdout + daily rotating log files.
+    let env_filter = EnvFilter::try_new(&config.log_level)
+        .unwrap_or_else(|_| EnvFilter::new("info"));
+
+    let file_appender = tracing_appender::rolling::daily(&config.log_path, "recorder.log");
+    let (file_writer, _guard) = tracing_appender::non_blocking(file_appender);
+
+    tracing_subscriber::registry()
+        .with(env_filter)
+        .with(
+            tracing_subscriber::fmt::layer()
+                .with_target(false)
+                .with_writer(std::io::stdout),
+        )
+        .with(
+            tracing_subscriber::fmt::layer()
+                .with_target(false)
+                .with_ansi(false)
+                .with_writer(file_writer),
+        )
+        .init();
+
+    let addr = format!("0.0.0.0:{}", config.server_port);
+    info!(port = config.server_port, "Server starting");
+
+    let app = doctate_server::create_router(config)
+        .layer(TraceLayer::new_for_http())
+        .layer(RequestBodyLimitLayer::new(50 * 1024 * 1024)); // 50 MB
 
-    let app = doctate_server::create_router(config);
     let listener = TcpListener::bind(&addr).await.unwrap();
     axum::serve(listener, app).await.unwrap();
 }