Need latest files from google drive api v3

I need latest files from google drive on every 15 minute. I have system which uploaded files to google system every 15 minute or may be 30 minute. So i need to check only latest files rather than all files on a particular folder. Also i need to get last get file time in order to use next time search

I have tried this api http://ift.tt/2df4vXL

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