export const UNSIGNED_PAYLOAD = "UNSIGNED-PAYLOAD"; export const SHA256_HEADER = "X-Amz-Content-Sha256"; export const ALGORITHM_QUERY_PARAM = "X-Amz-Algorithm"; export const CREDENTIAL_QUERY_PARAM = "X-Amz-Credential"; export const AMZ_DATE_QUERY_PARAM = "X-Amz-Date"; export const SIGNED_HEADERS_QUERY_PARAM = "X-Amz-SignedHeaders"; export const EXPIRES_QUERY_PARAM = "X-Amz-Expires"; export const HOST_HEADER = "host"; export const ALGORITHM_IDENTIFIER = "AWS4-HMAC-SHA256";