: If this "china5" file contains postal data, note that China uses a 6-digit numerical system . Ensure your zip contents align with these official postal requirements . China Postal Code Requirements | UPS Supply Chain Solutions
This implementation assumes "china5.zip" is a dataset or resource file stored on your server. 1. Backend Implementation (Node.js/Express)
: For production, consider using cloud storage like Amazon S3 or Google Cloud Storage to host large zip files.
This endpoint handles the file request, sets the appropriate headers, and streams the file to the client. javascript