basic db setup

.gitignore

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+/target
+/docker-data

Cargo.toml

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+[package]
+name = "mabel"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+axum = "0.6"
+tracing = "0.1"
+tracing-subscriber = "0.3"
+tokio = { version = "1.28", features = ["full"] }
+sqlx = { version = "0.6", features = [ "runtime-tokio-rustls", "postgres", "uuid", "chrono", "macros", "migrate" ] }
+uuid = { version = "1.3", features = ["v4", "fast-rng"] }
+serde = { version = "1" }
+figment = { version = "0.10", features = ["toml", "env"] }
+anyhow = "1.0"

docker-compose.yaml

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+services:
+  database:
+    image: postgres
+    environment:
+      POSTGRES_USER: artificiale
+      POSTGRES_PASSWORD: changeme
+      POSTGRES_DB: artificiale
+    ports:
+      - 5432:5432
+    volumes:
+      - ./docker-data/database:/var/lib/postgresql

src/main.rs

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+use anyhow::{Ok, Result};
+use axum::{routing::get, Router, Server};
+use figment::{
+    providers::{Env, Format, Serialized, Toml},
+    Figment,
+};
+use serde::{Deserialize, Serialize};
+use sqlx::postgres::PgPoolOptions;
+use std::net::SocketAddr;
+
+#[derive(Deserialize, Serialize)]
+struct Config {
+    bind: String,
+    database_url: String,
+}
+
+impl Default for Config {
+    fn default() -> Self {
+        Config {
+            bind: "127.0.0.1:3000".to_owned(),
+            database_url: "postgres://artificiale:changeme@localhost/artificiale".to_owned(),
+        }
+    }
+}
+
+async fn root() -> &'static str {
+    "Hello, World!"
+}
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    tracing_subscriber::fmt::init();
+
+    let config: Config = Figment::from(Serialized::defaults(Config::default()))
+        .merge(Toml::file("mabel.toml"))
+        .merge(Env::prefixed("MABEL_"))
+        .extract()?;
+
+    let app = Router::new().route("/", get(root));
+
+    let pool = PgPoolOptions::new()
+        .max_connections(5)
+        .connect(config.database_url.as_str())
+        .await?;
+
+    sqlx::migrate!().run(&pool).await?;
+
+    let addr: SocketAddr = config.bind.parse()?;
+    tracing::debug!("listening on {}", addr);
+    Server::bind(&addr)
+        .serve(app.into_make_service())
+        .await
+        .unwrap();
+    Ok(())
+}