feat(server): wire config, database, and HTTP serving

crates/server/src/lib.rs

@@ -3,3 +3,35 @@
 mod config;
 
 pub use config::Config;
+
+use anyhow::Context;
+use api::{AppState, build_app};
+use db::Db;
+use tokio::net::TcpListener;
+
+/// Connect dependencies from `config` and serve until shutdown.
+pub async fn run(config: Config) -> anyhow::Result<()> {
+    let db = Db::connect(&config.database_url)
+        .await
+        .context("connecting to the database")?;
+    let state = AppState {
+        db,
+        app_name: config.app_name.clone(),
+    };
+
+    let listener = TcpListener::bind(&config.bind_addr)
+        .await
+        .with_context(|| format!("binding to {}", config.bind_addr))?;
+    tracing::info!(addr = %config.bind_addr, "server listening");
+
+    serve(listener, state).await
+}
+
+/// Serve the API on an already-bound listener (used by `run` and tests).
+pub async fn serve(listener: TcpListener, state: AppState) -> anyhow::Result<()> {
+    let app = build_app(state);
+    axum::serve(listener, app)
+        .await
+        .context("running the HTTP server")?;
+    Ok(())
+}