add a body to be fully compliant with the http spec

meilisearch-http/src/routes/health.rs

@@ -9,5 +9,6 @@ pub fn services(cfg: &mut web::ServiceConfig) {
 
 #[get("/health")]
 async fn get_health() -> Result<HttpResponse, ResponseError> {
-    Ok(HttpResponse::Ok().finish())
+    let payload = serde_json::json!({ "status": "ok" });
+    Ok(HttpResponse::Ok().body(payload.to_string()))
 }

meilisearch-http/tests/health.rs

@@ -6,6 +6,7 @@ async fn test_healthyness() {
 
     // Check that the server is healthy
 
-    let (_response, status_code) = server.get_health().await;
+    let (response, status_code) = server.get_health().await;
     assert_eq!(status_code, 200);
+    assert_eq!(response["status"], "ok");
 }