modify to change zero2prod to be a library

src/lib.rs

@@ -0,0 +1,13 @@
+use actix_web::dev::Server;
+use actix_web::{web, App, HttpResponse, HttpServer};
+
+async fn health_check() -> HttpResponse {
+    HttpResponse::Ok().finish()
+}
+
+pub fn run() -> Result<Server, std::io::Error> {
+    let server = HttpServer::new(|| App::new().route("/health_check", web::get().to(health_check)))
+        .bind("127.0.0.1:8000")?
+        .run();
+    Ok(server)
+}

src/main.rs

@@ -1,23 +1,6 @@
-use actix_web::{web, App, HttpResponse, HttpServer, Responder};
-
-// async fn greet(req: HttpRequest) -> impl Responder {
-//     let name = req.match_info().get("name").unwrap_or("World");
-//     format!("Hello {}!", &name)
-// }
-
-async fn health_check() -> impl Responder {
-    HttpResponse::Ok()
-}
+use zero2prod::run;
 
 #[tokio::main]
 async fn main() -> Result<(), std::io::Error> {
-    HttpServer::new(|| {
-        App::new()
-            // .route("/", web::get().to(greet))
-            // .route("/{name}", web::get().to(greet))
-            .route("/health_check", web::get().to(health_check))
-    })
-    .bind("127.0.0.1:8000")?
-    .run()
-    .await
+    run()?.await
 }