Access a S3 folder specific to particular user authenticated using Cognito and Cloudfront

Question

Hi,

I saw a previous question posted [here](https://repost.aws/questions/QUutSZgcSPQJiCL5p-ln_aVA/access-the-s3-folder-specific-to-particular-user-authenticated-using-cognito) which is similar to what i am trying to do except my S3 bucket has a Cloudfront distribution in front of it and I want to use the Cloudfront distribution URL in my application for users to retrieve objects from the S3 bucket. I want to have 1 bucket for all the users but want to ensure that each user will have access to only their folder's objects. How do I do so using Cognito and Cloudfront?

Would I need to use Cloudfront signed URLs?

Answer

Hello.

I think the answer to the question at this URL is close to your situation.  
https://repost.aws/questions/QUV2b7c7ftQhOLrM1O0BT9XA/using-cognito-and-cloudfront-to-control-access-to-user-files-on-s3

I think the flow will be to authenticate using Lambda@Edge on CloudFront and access S3 using the credentials of the Cognito ID pool.  
https://github.com/aws-samples/cloudfront-authorization-at-edge

Access a S3 folder specific to particular user authenticated using Cognito and Cloudfront

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