In my Application, I just wanted to show images in the Appian interface as a preview that are actually in google drive
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I believe, storing an a file using file upload component, and fetching all the files from the drive folder can be achieved easily using different operations of GDrive API, whats different here is that you want to bring the contents(images) to the appian interface but want it as view only. If you want any GDrive content then you have to create a batch process which will bring the contents(images) from that folder to appian interface as preview and then you will have the complete control over the interface. Later you can manage the recurcive process as per your requirements.