Unzip a file from Buffer without saving file anywhere on disk in NodeJS

Question

For my current project, I have zip files being sent to an API server via a base64 encoded string. I am looking to convert that string into a Buffer (or some sort of other object) and explode the ZIP file into an object structured in the same way as the files in the ZIP so I can push them to the cloud using file objects. I've read about ADM-ZIP and other similar tools but all of them seem to require a file on disk, unless I am just misunderstanding the documentation. I am looking to avoid saving files on a disk since this API runs in the cloud with a variable storage space.

Thank you for all of your help in advance!

Answer 1

The best way to do manipulation with data without saving files in your case is Streams API in node.js. Look for the libs b64 - stream decoding of base64 unzip-stream - unziping files in stream

So your flow would be Accept a request, create ReadStream from its data (base64) pipe it to b64 , pipe it to unzip-stream and so on.