feat: cli opts

crates/backend/Cargo.toml

@@ -17,3 +17,4 @@ tower = "0.4.13"
 uuid.workspace = true
 tower-http = { version = "0.4.0", features = ["fs", "trace", "cors"] }
 tokio-stream = { version = "0.1.14", features = ["sync"] }
+clap = { version = "4.3.3", features = ["derive"] }

crates/backend/src/main.rs

@@ -10,6 +10,8 @@ use axum::Extension;
 use axum::Json;
 use axum::Router;
 use axum::TypedHeader;
+use clap::command;
+use clap::Parser;
 use common::Achievement;
 use common::CreateAchievement;
 use common::CreateMilestone;
@@ -52,10 +54,28 @@ impl IntoResponse for HandlerError {
     }
 }
 
+#[derive(clap::Parser)]
+#[command(author, version, about, long_about = None)]
+struct Opts {
+    #[clap(short, long, default_value = "127.0.0.1")]
+    address: String,
+
+    #[clap(short, long, default_value = "4000")]
+    port: u16,
+}
+
 #[tokio::main]
 async fn main() {
     tracing_subscriber::fmt::init();
 
+    let opts: Opts = Opts::parse();
+
+    tracing::info!("Address: {}", opts.address);
+    tracing::info!("Port: {}", opts.port);
+
+    let socket = format!("{}:{}", opts.address, opts.port);
+    let socket_addr = socket.parse::<SocketAddr>().unwrap();
+
     let init_app_state = match AppState::read_state().await {
         Ok(state) => state,
         Err(AppStateReadError::FileReadError(_)) => {
@@ -123,10 +143,8 @@ async fn main() {
                 )
                 .layer(CorsLayer::permissive());
 
-            let addr = SocketAddr::from(([0, 0, 0, 0], 4000));
-
-            tracing::debug!("listening on {}", addr);
-            let server = axum::Server::bind(&addr)
+            tracing::debug!("listening on {}", socket_addr);
+            let server = axum::Server::bind(&socket_addr)
                 .serve(app.into_make_service())
                 .with_graceful_shutdown(async {
                     shutdown_rx.changed().await.unwrap();