Developed Cronet NetLog support for the dart-lang/http repository, enabling developers to capture network logs for enhanced debugging and analysis. This work introduced new APIs in Dart for starting and stopping network logging to a file, facilitating more efficient diagnosis of network issues in backend development. The implementation included comprehensive integration tests to ensure correct NetLog lifecycle management and reliable log file handling. Project documentation and configuration files were updated to reflect these changes, while codebase maintenance improved test reliability by refining and cleaning up test files. The contribution focused on API development, backend engineering, and robust integration within Dart environments.