logger

type KeyVal struct {
	Key string
	Val string
}

type ReqInfo struct {
	RemoteHost string   // Client Host/IP
	UserAgent  string   // User Agent
	RequestID  string   // x-amz-request-id
	API        string   // API name - GetObject PutObject NewMultipartUpload etc.
	BucketName string   // Bucket name
	ObjectName string   // Object name
	Tags       []KeyVal // Any additional info not accommodated by above fields
}