Creating custom writable streams in Node.js enables efficient data consumption and processing for file operations, data transformation, and output handling. As the creator of CoreUI with over 11 years of Node.js development experience, I’ve built numerous writable streams for log processing, data export systems, and real-time analytics. From my expertise, the most reliable approach is extending the Writable class and implementing the _write() method to handle incoming data chunks. This pattern provides complete control over data consumption, processing, and output formatting for scalable server applications.

Creating custom readable streams in Node.js enables dynamic data generation and efficient data production for various applications and data sources. With over 25 years of experience in software development and as the creator of CoreUI, I’ve built numerous readable streams for API data feeds, database cursors, and real-time data generation. From my expertise, the most reliable approach is extending the Readable class and implementing the _read() method to control data production. This pattern provides complete control over data flow timing, batching, and source management for scalable data streaming applications.