/health_check with integration test implemented

src/lib.rs

@@ -0,0 +1,18 @@
+use actix_web::{web, App, HttpRequest, HttpResponse, HttpServer, Responder};
+use actix_web::dev::Server;
+use std::net::TcpListener;
+
+async fn health_check() -> HttpResponse {
+	HttpResponse::Ok().into()
+}
+
+pub fn run(listener: TcpListener) -> Result<Server, std::io::Error> {
+	let server = HttpServer::new(|| {
+		App::new()
+			.route("/health_check", web::get().to(health_check))
+	})
+	.listen(listener)?
+	.run();
+
+	Ok(server)
+}

src/main.rs

@@ -0,0 +1,9 @@
+use std::net::TcpListener;
+
+use zero2prod::run;
+
+#[tokio::main]
+async fn main() -> std::io::Result<()> {
+	let listener = TcpListener::bind("127.0.0.1:8000").expect("Failed to bind random port");
+	run(listener)?.await
+}