Fix unhandled schema version mismatch error in SSE event stream

The SSE query subscription error handler only checked for subCode-based errors (EVENT_STREAM_DOES_NOT_EXIST, EVENT_STREAM_ALREADY_EXISTS) but the "Schema version mismatch" and "App version mismatch" errors from the server don't include a subCode extension. This caused them to fall through to the default case which threw an unhandled error to Sentry. Handle these version mismatch errors gracefully by resetting active query listeners and destroying the event stream, allowing it to be recreated after the user refreshes. Co-Authored-By: Claude Opus 4.6 <[email protected]>
2026-02-18 17:10:04 +00:00
1 changed files with 10 additions and 0 deletions
@@ -95,6 +95,7 @@ export const SSEQuerySubscribeEffect = () => {
        } catch (error) {
          if (error instanceof ApolloError) {
            const subCode = error.graphQLErrors[0]?.extensions?.subCode;
+            const errorMessage = error.graphQLErrors[0]?.message;

            switch (subCode) {
              case 'EVENT_STREAM_DOES_NOT_EXIST':
@@ -104,6 +105,15 @@ export const SSEQuerySubscribeEffect = () => {
                return;
              }
              default: {
+                if (
+                  errorMessage === 'Schema version mismatch.' ||
+                  errorMessage === 'App version mismatch.'
+                ) {
+                  set(activeQueryListenersState, []);
+                  set(shouldDestroyEventStreamState, true);
+                  return;
+                }
+
                throw new Error(
                  `Unhandled error for event stream: ${error.message}`,
                );