Implement CLI Parameters with clap

1 files changed, 27 insertions, 1 deletions

diff --git a/actix/src/main.rs b/actix/src/main.rs
index 4f03d08..f11798f 100644
--- a/actix/src/main.rs
+++ b/actix/src/main.rs
@@ -1,6 +1,10 @@
+// vim: tabstop=4 shiftwidth=4 expandtab
 
+
+extern crate clap;
 use actix_web::{get, post, web, App, HttpResponse, HttpServer, Responder};
 
+
 #[get("/")]
 async fn hello() -> impl Responder {
     HttpResponse::Ok().body("Hello world!")
@@ -17,13 +21,35 @@ async fn manual_hello() -> impl Responder {
 
 #[actix_web::main]
 async fn main() -> std::io::Result<()> {
+
+    let arg_matches = clap::App::new("Actix Web Server")
+        .about("Executable to run the web-template Web Server")
+        .arg(clap::Arg::with_name("address")
+            .help("The address to which the server binds")
+            .long("address")
+            .short("a")
+            .takes_value(true)
+            .default_value("127.0.0.1"))
+        .arg(clap::Arg::with_name("port")
+            .help("The port to which the server binds")
+            .long("port")
+            .short("p")
+            .takes_value(true)
+            .default_value("8080"))
+        .get_matches();
+
+    let address = arg_matches.value_of("address").unwrap();
+    let port = arg_matches.value_of("port").unwrap();
+
+    println!("Binding to {}:{}", address, port);
+
     HttpServer::new(|| {
         App::new()
             .service(hello)
             .service(echo)
             .route("/hey", web::get().to(manual_hello))
     })
-    .bind("127.0.0.1:8080")?
+    .bind(format!("{}:{}", address, port))?
     .run()
     .await
 }