How to restrict buckets to user

Question

Thanks for previous reply.

I am new to amazon s3. Is there way to restrict the buckets to specific user. I have 20 buckets in my amazon s3, while creating the user i want to share only 2 buckets. I wont share remaining buckets to that particular user.How to hide or restrict buckets to particular user. is this possible in amazon s3..??

Answer 1

You speak of a user, is the user someone within your application, or a user in AWS ACL?

If its in the application, you can use a temporary access by generating a presigned URL to serve, code sample in C#:

Amazon.S3.Model.GetPreSignedUrlRequest req = new Amazon.S3.Model.GetPreSignedUrlRequest();
        req.WithBucketName(Helper.AppConfig.AWS_Bucket)
            .WithKey(key)
            .WithExpires(expiration)
            .WithVerb(Amazon.S3.Model.HttpVerb.GET);

        return S3Helper.S3ClientInstance.GetPreSignedURL(req);

If its a user you have added in AWS, you can set the permission for that given user, at the bucket level.