Initial commit

.gitignore

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+/target
+.idea

Cargo.toml

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+[package]
+name = "hello_world_http"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+clap = {version = "4.5.9", features = ["derive", "env"]}
+actix-web = "4"
+env_logger = "0.11.5"

src/main.rs

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+use actix_web::middleware::Logger;
+use actix_web::{get, post, web, App, HttpResponse, HttpServer, Responder};
+use clap::Parser;
+use env_logger::Env;
+
+/// Simple hello world HTTP server
+#[derive(clap::Parser, Debug)]
+#[command(version, about, long_about = None)]
+struct Args {
+    /// Name of the person to greet
+    #[arg(env, short, long, default_value = "0.0.0.0:8000")]
+    listen_url: String,
+}
+
+#[get("/")]
+async fn hello() -> impl Responder {
+    HttpResponse::Ok().body("Hello world!")
+}
+
+#[post("/echo")]
+async fn echo(req_body: String) -> impl Responder {
+    HttpResponse::Ok().body(req_body)
+}
+
+async fn manual_hello() -> impl Responder {
+    HttpResponse::Ok().body("Hey there!")
+}
+
+#[actix_web::main]
+async fn main() -> std::io::Result<()> {
+    env_logger::init_from_env(Env::default().default_filter_or("info"));
+
+    let args = Args::parse();
+
+    HttpServer::new(|| {
+        App::new()
+            .wrap(Logger::default())
+            .service(hello)
+            .service(echo)
+            .route("/hey", web::get().to(manual_hello))
+    })
+    .bind(args.listen_url)?
+    .run()
+    .await
+}