Over a two-month period, contributed to ONDC-Official/automation-frontend by building a centralized API interaction layer using JavaScript and TypeScript, introducing a custom Axios client with API key management and enforcing environment variable presence to streamline inter-service communication. This refactoring reduced code duplication and improved maintainability, supporting scalable service integration. In ONDC-Official/automation-config-service, implemented core flow configurations for version 1.2.5, including RET13, Offers, and Force Cancellation flows, using YAML for domain modeling and configuration management. These updates enabled comprehensive order lifecycle support and accelerated onboarding of new flows, enhancing the flexibility and scalability of ONDC’s backend systems.