json health.

src/main.rs

@@ -1,5 +1,8 @@
+use axum::http::StatusCode;
 use axum::routing::get;
+use axum::Json;
 use axum::Router;
+use serde::Serialize;
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
@@ -11,6 +14,11 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
     Ok(())
 }
 
-async fn health() -> &'static str {
-    "ok"
+async fn health() -> (StatusCode, Json<HealthResponse>) {
+    (StatusCode::OK, Json(HealthResponse { ok: true }))
+}
+
+#[derive(Serialize)]
+struct HealthResponse {
+    ok: bool,
 }