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I want to create a one time download link to an amazon s3 hosted file. This link expires once the file has been downloaded.
I want this file to still be hosted but a visitor can only download the file once.
The scenario I need this for is: I have a file download website where users pay for a file. I want the user to only be able to download the file once from the website (and Amazon s3), I also do not want the user to be able to share a direct download link with other people.
If this isn't possible I wonder if it is more efficient to limit it by an IP address or Cookie if possible?
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To generate a presigned URL using the AWS Management ConsoleSign in to the AWS Management Console and open the Amazon S3 console at https://console.aws.amazon.com/s3/ . In the Buckets list, choose the name of the bucket that contains the object that you want a presigned URL for.
You can download an object from an S3 bucket in any of the following ways: Select the object and choose Download or choose Download as from the Actions menu if you want to download the object to a specific folder. If you want to download a specific version of the object, select the Show versions button.
aws s3 sync s3://mybucket . will download all the objects in mybucket to the current directory. This will download all of your files using a one-way sync. It will not delete any existing files in your current directory unless you specify --delete , and it won't change or delete any files on S3.
To download an entire bucket to your local file system, use the AWS CLI sync command, passing it the s3 bucket as a source and a directory on your file system as a destination, e.g. aws s3 sync s3://YOUR_BUCKET . . The sync command recursively copies the contents of the source to the destination.
There is no way to tell S3 to allow a link to be used only once. But you can create a link that can only be used until a specified time. What I do is redirect the requester to an S3 link that expires in a few minutes, so he or she doesn't have time to share it. You can make that expiration time very short, even a few seconds, so long as their browser has time to receive the redirect response and follow it.
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