Yangyan focused on backend development for the ourongxing/newsnow repository, addressing a critical bug related to ID handling in the data flow. Using TypeScript, Yangyan implemented a safer approach by transitioning from k.target.id to urlId, mitigating overflow risks and ensuring data integrity across the source and downstream components. This fix, aligned with ongoing Zhihu data integration, reduced the likelihood of incorrect IDs and runtime errors for user-facing features. The solution demonstrated defensive coding practices, with a concise and well-documented patch that minimized code changes while improving maintainability and reliability in the system’s backend data processing pipeline.