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I am using php to create a presigned url and send that to front-end and that uploads directly to s3 using that presigned url. I want to secure and restrict that upload.

for example I have created a presigned url for file "stack.txt" and I want the upload to fail/restrict any other file of different name being uploaded to s3 bucket.

How can I implement that ?

Avinash Pratap Singh
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  • The same way you are doing this now. Do you have any code or can you explain why it does not work? – Marcin Sep 16 '21 at 04:24
  • not sure if that's a thing - s3 is going to allow you to upload whatever you want as long as you have a policy set for the uploader. What you could do is a mix of versioning and restricting uploads to only a single IAM user or aws service. – Brandon Miller Sep 16 '21 at 04:27

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