I am working on building an API front end for a 3rd Party API. In addition to collecting the file from my user, I also need to post the file to the 3rd Party Service.
The only way I have been able to get the actual file contents is to download it again after it has been saved.
class Template < ApplicationRecord
post_body << self.pv_file.blob.download
I want to have a before create filter that throws an error if the 3rd Party API rejects the file (e.g. wrong format, service unavailable, etc), but the only way I have found to access the file content is by downloading it again.
How can we access the actual file content before it has been saved and uploaded?