API reference > @kontsedal/olas-codemod > rootOptions
rootOptions variable
The query engine is explicit, and root-wide query defaults live on it:createRoot(app, { deps, defaultQueryOptions }) →createRoot(app, { deps, queries: queryEngine({ defaults }) }). Every 0.8 root had a query client, so every createRoot gains queries: queryEngine() to keep that. createTestController supplies an engine by default, so it only moves the defaults.
Signature:
typescript
rootOptions: Transform