title: Is it possible to generate a single presigned URL which can allow MULTIPLE unique objects to be uploaded?
body: <p>I know based on the AWS docs here</p>
  <p><a href="https://docs.aws.amazon.com/AmazonS3/latest/dev/PresignedUrlUploadObject.html" rel="nofollow noreferrer">https://docs.aws.amazon.com/AmazonS3/latest/dev/PresignedUrlUploadObject.html</a></p>
  <p>that its possible to generate a URL which can can used to</p>
  <blockquote>
  <p>upload <strong>a</strong> specific object to your bucket</p>
  </blockquote>
  <p>and that</p>
  <blockquote>
  <p>You can use the presigned URL multiple times, up to the expiration date and time.</p>
  </blockquote>
  <p>It is also possible to generate a URL (perhaps a base s3 presigned URL) which would allow multiple different unique documents to be uploaded based on a single URL?</p>
  <p>For example, lets imagine a client application would like to upload multiple unique/distinct documents to s3 using some type of presigned URL. I dont necessarily want to force them to get a batch of presigned URLs since that would require much more on the part of the client (they would have to request batch of presigned URLs, rather than a single URL)</p>
  <p>Here is the flow for a single document upload.</p>
  <p><a href="https://i.stack.imgur.com/jfEui.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jfEui.png" alt="enter image description here" /></a></p>
  <p><a href="https://i.stack.imgur.com/lXn3P.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/lXn3P.png" alt="enter image description here" /></a></p>
  <p>What is the simplest known solution for allowing a client to use some type of presigned url to upload <strong>multiple</strong> documents?</p>