remove some unwraps

src/main.rs

@@ -11,7 +11,7 @@ use axum::{
 use rusqlite::Connection;
 use tower_http::trace::TraceLayer;
 use tower_request_id::{RequestId, RequestIdLayer};
-use tracing::{debug, info, info_span};
+use tracing::{debug, error, info, info_span};
 use tracing_subscriber::{layer::SubscriberExt as _, util::SubscriberInitExt as _};
 
 #[derive(Template)]
@@ -40,7 +40,7 @@ struct Food {
 }
 
 #[tokio::main]
-async fn main() {
+async fn main() -> Result<(), std::io::Error> {
     tracing_subscriber::registry()
         .with(
             tracing_subscriber::EnvFilter::try_from_default_env().unwrap_or_else(|_| {
@@ -57,8 +57,12 @@ async fn main() {
         .init();
 
     let db_connecion_str = "./foods.db".to_string();
-    let conn = Connection::open(db_connecion_str).unwrap();
-    conn.execute(include_str!("create_tables.sql"), ()).unwrap();
+    debug!(db_connecion_str, "opening database");
+    let conn = Connection::open(db_connecion_str).expect("failed to open database");
+    if let Err(e) = conn.execute(include_str!("create_tables.sql"), ()) {
+        error!(?e, "failed to create tables");
+        panic!("failed to create tables: {:#?}", e);
+    }
     let conn = Arc::new(Mutex::new(conn));
 
     let app = Router::new()
@@ -88,9 +92,17 @@ async fn main() {
         .layer(RequestIdLayer)
         .with_state(conn);
 
-    let listener = tokio::net::TcpListener::bind("0.0.0.0:3001").await.unwrap();
-    info!("listening on {}", listener.local_addr().unwrap());
-    axum::serve(listener, app).await.unwrap();
+    let address = "0.0.0.0:3001";
+    let listener = tokio::net::TcpListener::bind(address)
+        .await
+        .expect("failed to bind to address");
+    info!(
+        "listening on {}",
+        listener
+            .local_addr()
+            .expect("failed to get local listening address")
+    );
+    axum::serve(listener, app).await
 }
 
 fn get_foods(conn: &Arc<Mutex<Connection>>) -> Vec<Food> {