: Use Stream-Based Processing . The server should read chunks from the database/storage and write them directly to the response output stream rather than loading the entire 455K dataset into RAM.
: Instead of an immediate download, the system "prepares" the ZIP in the background.
: A visual indicator showing the number of files processed (e.g., "150,000 / 455,000 zipped") to manage expectations during long tasks. Technical Requirements Download 455K zip
: Implementation of HTTP Range Requests (Status 206) to allow users to pause and resume progress.
: Use specialized ZIP libraries (like ZipOutputStream in Java or JSZip in JS) that support ZIP64 extensions to handle files exceeding the 4GB limit. UX Best Practices : Use Stream-Based Processing
How to manage large file downloads in the front end? : r/reactjs
: The user receives a UI notification or email once the 455K-item archive is ready for retrieval. : A visual indicator showing the number of
Allow users to export and download massive datasets containing up to 455,000 records or large multi-gigabyte ZIP archives without exhausting server memory or timing out browser connections.