class ZuoraConnect::AppInstanceBase

def kms_decrypt(value)
  kms_tries ||= 0
  kms_client = Aws::KMS::Client.new({region: Rails.application.secrets.aws['AWS_REGION'], credentials: self.aws_auth_client}.delete_if { |k, v| v.blank? })
  resp = kms_client.decrypt({ciphertext_blob: [value].pack("H*") })
  return resp.plaintext
rescue *AWS_AUTH_ERRORS => ex
  if (kms_tries += 1) < 3
    Rails.logger.warn(AWS_AUTH_ERRORS_MSG, ex)
    retry
  else
    Rails.logger.error(AWS_AUTH_ERRORS_MSG, ex)
    raise
  end
end