flush-write-stream is a Node.js library providing a convenient base class for creating writable streams with asynchronous flush operations. Ideal for scenarios where you need to ensure all buffered data is written before the stream closes. It simplifies implementing custom streams that handle flushing logic, such as persisting data to a database or file system. Its lightweight design ensures minimal overhead, enhancing the performance of your streaming applications. Extensively tested and actively maintained, aiding in robust and predictable stream handling.