Function isRetryableError

apps/api/src/lib/email/email.utils.ts:107–136

(
  error: unknown,
  retryableErrorTypes: (new (...args: never[]) => Error)[] = []
)

 */

export const isRetryableError = (
  error: unknown,
  retryableErrorTypes: (new (...args: never[]) => Error)[] = []
): boolean => {
  if (error === null || error === undefined) {
    return false;
  }

  for (const ErrorType of retryableErrorTypes) {
    if (error instanceof ErrorType) {
      return true;
    }
  }

  if (!(error instanceof Error)) {
    return false;
  }

  const name = error.name.toLowerCase();

  if (TRANSIENT_NAME_PATTERNS.some((pattern) => name.includes(pattern))) {
    return true;
  }

  const message = error.message.toLowerCase();

  return TRANSIENT_MESSAGE_PATTERNS.some((pattern) =>
    message.includes(pattern)
  );
};

const delay = async (ms: number): Promise<void> =>
  new Promise((resolve) => setTimeout(resolve, ms));