Add clap to parse cli args. Configure server.rs to accept address and…

… port arguments. Fixes Make port and server address configurable #23

crates/web/Cargo.toml

@@ -21,6 +21,7 @@ tokio = { version = "*", features = ["full"] }
 tower = "*"
 utoipa = { workspace = true, features = ["axum_extras", "preserve_order"] }
 utoipa-swagger-ui = { version = "*", features = ["axum"] }
+clap = { version = "4.5.2", features = ["derive"] }
 
 [dev-dependencies]
 http-body-util = "0.1.0"

crates/web/src/bin/server.rs

@@ -1,17 +1,35 @@
+use clap::Parser;
 use std::sync::Arc;
 use tokio::net::TcpListener;
 use web::axum::router;
 use web::web_api::WebApi;
 
+/// Command line arguments for starting the web application.
+#[derive(Parser, Debug)]
+#[command(version, about, long_about = None)]
+struct Args {
+    /// The web address to host the server at with a default value of "0.0.0.0" when no input is provided.
+    #[arg(short, long, default_value_t = String::from("0.0.0.0"))]
+    address: String,
+
+    /// The port to host the server at with a default value of "8080" when no input is provided.
+    #[arg(short, long, default_value_t = String::from("8080"))]
+    port: String,
+}
+
 #[tokio::main]
 async fn main() {
+    let cli_args: Args = Args::parse();
+    let web_address = format!("{}:{}", cli_args.address, cli_args.port);
+
     println!("You can access the server for example via");
     println!(
-        "http://localhost:8080/move?die1=3&die2=1&p24=2&p19=-5&p17=-3&p13=5&p12=-5&p8=3&p6=5&p1=-2"
+        "http://{}/move?die1=3&die2=1&p24=2&p19=-5&p17=-3&p13=5&p12=-5&p8=3&p6=5&p1=-2",
+        &web_address
     );
-    println!("http://localhost:8080/swagger-ui");
+    println!("http://{}/swagger-ui", &web_address);
 
-    let listener = TcpListener::bind("0.0.0.0:8080").await.unwrap();
+    let listener = TcpListener::bind(web_address).await.unwrap();
     let web_api = Arc::new(WebApi::try_default());
     let app = router(web_api);
     axum::serve(listener, app).await.unwrap();