Event interface that allows an app to register as a handler of the IPreFileUpload event
IPreFileUpload
This event is triggered prior to an upload succesfully being saved to the database, but after all its contents have been retrieved by Rocket.Chat.
To prevent the upload from completing, an app should throw a FileUploadNotAllowedException with a message specifying the reason for rejection.
FileUploadNotAllowedException
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Event interface that allows an app to register as a handler of the
IPreFileUploadeventThis event is triggered prior to an upload succesfully being saved to the database, but after all its contents have been retrieved by Rocket.Chat.
To prevent the upload from completing, an app should throw a
FileUploadNotAllowedExceptionwith a message specifying the reason for rejection.