This is a Bucket Policity to Amazon Web Services S3 bucket that allows you read all the files under base directories. For example, you can use this for serve css and js bundles from s3 without use a ACL at the moment of the object upload.

AWSS3BuckePolicy

{
    "Version":"2012-10-17",
    "Statement":[
        {
            "Sid":"ExampleFolderACL",
            "Effect":"Allow",
            "Principal": "*",
            "Action":["s3:GetObject"],
            "Resource":["arn:aws:s3:::my-bucket-name/*/*"]
        }
    ]
}

Example of the bucket estructure for bundles in S3.

bucket-base
└───js
│   │   script-example.js
└───css
    │   style-example.css