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/s3manager github.com/golang-jwt/jwt/v4 Standard library imports bytes context crypto/ecdsa crypto/sha256 encoding/base64 encoding/hex encoding/json errors fmt io log net/http os path/filepath time