my-website-v2/backend/public/src/main.rs

use axum::{
    routing::{get, post},
    Router,
};
use sqlx::postgres::PgPoolOptions;
use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};

use std::time::Duration;
use tokio::net::TcpListener;

mod datasources;
mod routes;

#[tokio::main]
async fn main() {
    let _ = dotenvy::dotenv();
    tracing_subscriber::registry()
        .with(
            tracing_subscriber::EnvFilter::try_from_default_env()
                .unwrap_or_else(|_| format!("{}=debug", env!("CARGO_CRATE_NAME")).into()),
        )
        .with(tracing_subscriber::fmt::layer())
        .init();

    let db_connection_str = std::env::var("DATABASE_URL")
        .unwrap_or_else(|_| "postgres://postgres:password@localhost".to_string());

    // set up connection pool
    let pool = PgPoolOptions::new()
        .max_connections(10)
        .acquire_timeout(Duration::from_secs(3))
        .connect(&db_connection_str)
        .await
        .expect("can't connect to database");

    // build our application with some routes
    let app = Router::new()
        .route("/", get(routes::root::RootRoute::root))
        .fallback(routes::root::RootRoute::not_found)
        .with_state(pool);

    // run it with hyper
    let listener = TcpListener::bind("0.0.0.0:3000").await.unwrap();
    tracing::debug!("listening on {}", listener.local_addr().unwrap());
    axum::serve(listener, app).await.unwrap();
}