refactor(router): added status_code to golden_log_line (#3681)

crates/router/src/middleware.rs

@@ -153,6 +153,7 @@ where
                     merchant_id = Empty,
                     connector_name = Empty,
                     payment_method = Empty,
+                    status_code = Empty,
                     flow = "UNKNOWN",
                     golden_log_line = Empty
                 )

crates/router/src/services/api.rs

@@ -1095,7 +1095,7 @@ where
 
 #[instrument(
     skip(request, state, func, api_auth, payload),
-    fields(request_method, request_url_path)
+    fields(request_method, request_url_path, status_code)
 )]
 pub async fn server_wrap<'a, A, T, U, Q, F, Fut, E>(
     flow: impl router_env::types::FlowMetric,
@@ -1234,6 +1234,8 @@ where
     };
 
     let response_code = res.status().as_u16();
+    tracing::Span::current().record("status_code", response_code);
+
     let end_instant = Instant::now();
     let request_duration = end_instant.saturating_duration_since(start_instant);
     logger::info!(

crates/router_env/src/logger/storage.rs

@@ -92,12 +92,13 @@ impl Visit for Storage<'_> {
     }
 }
 
-const PERSISTENT_KEYS: [&str; 5] = [
+const PERSISTENT_KEYS: [&str; 6] = [
     "payment_id",
     "connector_name",
     "merchant_id",
     "flow",
     "payment_method",
+    "status_code",
 ];
 
 impl<S: Subscriber + for<'a> tracing_subscriber::registry::LookupSpan<'a>> Layer<S>