title: how to upload recently modified files from AWS s3 to dynomodb
body: <p>I have AWS S3 bucket1 and files are getting uploaded daily in s3 but I want to upload recently added files names only not previously added files names in dynomodb.</p>
  <p>Bucket 1 :</p>
  <p>abc.txt --filename has been added into dynomodb with the previous date.
  acd.txt --today's file, I wanted to add this filename into dynomodb.</p>
  <p>Take the recently uploaded filename in S3 and update it into dynomodb.</p>
  <p>Appreciate it if could provide some insights about it.</p>