feat: Avoid Duplicates

[bfourgeaud]

Describe the feature you'd like to request

It would be great if it was possible to avoid duplicate files. If I upload an image that already exists in the database (check hash for example, or set a custom_id), uploadthing would return the data of that already existing file instead of uploading it again.

Describe the solution you'd like to see

Maybe an option in the FileRouterInputConfig and add a property overwrite: boolean
Or setting a custom metadata on each file with a custom hash that we would calculate on everyfile before uploading. And uploadthing would match existing files based on that metadata.hash

Additional information

No response

👨‍👧‍👦 Contributing

• [ ] 🙋‍♂️ Yes, I'd be down to file a PR implementing this feature!

[juliusmarminge]

This is planned, but not sure how high up on the priority list.