Add health check

src/main.rs

@@ -3,7 +3,7 @@ mod error;
 
 use axum::{Extension, Router};
 use std::net::SocketAddr;
-use axum::routing::post;
+use axum::routing::{get, post};
 use clap::Parser;
 use migration::{Migrator, MigratorTrait};
 use crate::ingestion::ingestion::{monzo_batched_csv, monzo_batched_json, monzo_updated};
@@ -16,6 +16,10 @@ struct Config {
     database_url: String,
 }
 
+async fn health_check() -> &'static str {
+    "Ok"
+}
+
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
     let config: Config = Config::parse();
@@ -24,6 +28,7 @@ async fn main() -> anyhow::Result<()> {
 
     tracing_subscriber::fmt::init();
     let app = Router::new()
+        .route("/health", get(health_check))
         .route("/monzo-updated", post(monzo_updated))
         .route("/monzo-batch-export", post(monzo_batched_json))
         .route("/monzo-csv-ingestion", post(monzo_batched_csv))