Worked on enhancing API reliability and security for the edgelesssys/contrast repository by focusing on robust error handling and payload defense. Improved the handling of JSON encoding errors in API responses to ensure clearer communication with clients and more reliable integrations. Introduced request body size limits using Go’s MaxBytesReader, effectively reducing the risk of denial-of-service attacks from large payloads. Updated error propagation logic within the httpapi component to provide more consistent and observable error reporting. Leveraged skills in Go, backend development, and API development to deliver these targeted improvements, resulting in a more secure and dependable API infrastructure for client applications.