Developed and delivered a core feature for the Bags App within the DefiLlama/dimension-adapters repository, focusing on accurate partner trading fee calculation derived from DBC swaps. Leveraged SQL and TypeScript to optimize data-fetch pipelines, adjusting SQL queries to aggregate new fee metrics and updating backend logic to align with recent protocol changes. This work enabled near real-time revenue attribution and improved transparency for partners by reducing the need for manual reconciliation. The implementation demonstrated a strong grasp of backend development and database management, ensuring that the Bags App could provide precise, up-to-date reporting on partner trading fees within the evolving protocol.