Rocket - Hello World

cargo add rocket

[package]
name = "hello-world"
version = "0.1.0"
edition = "2021"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]
rocket = "0.5.1"

#![allow(unused)]
fn main() {
#[macro_use]
extern crate rocket;

#[get("/")]
fn index() -> &'static str {
    "Hello, world!"
}

#[launch]
fn rocket() -> _ {
    rocket::build().mount("/", routes![index])
}

#[cfg(test)]
mod test {
    use rocket::http::Status;
    use rocket::local::blocking::Client;

    #[test]
    fn hello_world() {
        let client = Client::tracked(super::rocket()).unwrap();
        let response = client.get("/").dispatch();

        assert_eq!(response.status(), Status::Ok);
        assert_eq!(response.into_string(), Some("Hello, world!".into()));
    }
}
}

cargo test

cargo run

$ curl -i http://127.0.0.1:8000/

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