Is there any way in foundry by which we can validate the attachment while uploading it to ontology object type using attachment property?

Question

Is there any way in foundry by which we can validate the attachment while uploading it to ontology object type using attachment property?

I have one ontology object type which has attachment property. I would like to add upload file to this ontology object type using function backed actions. But, before adding file, I want to validate the file like whether file contains particular data or not.

How can we achieve it using typescript?

I have created normal action type which uploads the file but it doesn't have option to validate the attachment.