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use std::io;
use axum::{routing::get, Router};
use clap::Parser;
#[derive(Parser)]
pub struct Args {
#[arg(short, long, env, default_value = "localhost")]
address: String,
#[arg(short, long, env, default_value_t = 64209)]
port: u16,
}
impl Args {
pub async fn run(self) -> io::Result<()> {
let app = Router::new().route("/", get(hello));
let listener = self.listener().await?;
let started_msg = started_msg(&listener)?;
let serve = axum::serve(listener, app);
println!("{started_msg}");
serve.await?;
Ok(())
}
async fn listener(&self) -> io::Result<tokio::net::TcpListener> {
let listen_addr = self.listen_addr();
let listener = tokio::net::TcpListener::bind(listen_addr).await?;
Ok(listener)
}
fn listen_addr(&self) -> impl tokio::net::ToSocketAddrs + '_ {
(self.address.as_str(), self.port)
}
}
fn started_msg(listener: &tokio::net::TcpListener) -> io::Result<String> {
let local_addr = listener.local_addr()?;
Ok(format!("listening on http://{local_addr}/"))
}
async fn hello() -> &'static str {
"Hello, world"
}
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