hashids.js

import Hashids from 'hashids';

const hashids = new Hashids(
  process.env.HASHIDS_SALT,
  4,
  'ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890',
);

export const encode = (id: number): string => hashids.encode(id);
export const decode = (id: string): number | null => {
  const decodedIds = hashids.decode(id);

  if (decodedIds.length === 0) {
    return null;
  }

  return decodedIds[0];
};

export default {
  encode,
  decode,
};