Imports github.com/aws/aws-sdk-go/aws github.com/aws/aws-sdk-go/aws/credentials github.com/aws/aws-sdk-go/aws/session github.com/aws/aws-sdk-go/service/s3 Standard library imports bytes compress/gzip crypto/md5 crypto/rand encoding/base64 encoding/hex encoding/json fmt io io/ioutil net/http net/url os sort strconv strings time