Global app filesystem hooks for upload/delete of file

[ganigeorgiev]

This was partially discussed in #2386

We could add generic app level filesystem hooks when uploading or deleting file.
These hooks should not be dependent on the current http api request (or the Record model), but will fire on every upload/delete action of the filesystem created from app.NewFilesystem() (similar to how we fire the db model hooks when changes are done through app.Dao()).

Possible hooks:

OnFileBeforeUpload()
OnFileAfterUpload()
OnFileBeforeDelete()
OnFileAfterDelete()

[gedw99]

👍 thanks @ganigeorgiev

[navaneeth-dev]

What about OnFileAfterDownloadRequest ?
I am using protected file, I want to delete after download

[ganigeorgiev]

@navaneeth-dev The suggested hooks are independent from the api requests.
I don't have the full picture of your use case to understand what you are trying to do, but if you want to delete a file after serving it to a client response, you can attach a global echo middleware OR attach to the before download hook and fire a go routine that will delete the record associated with the file.

[perostlin]

This would be great! With these in place we would be able to add other cloud storage options, e.g. Cloudinary. 👌

Cloudinary provides a really good free tier.

[gedw99]

Go CDK might be a good option then if you want to support cloud storage

[Meraj]

I would love to build this feature, if it is okay