type OnNextRandom = (lowInclusive: number, highExclusive: number)=> number; const randomId = (nextRandomInteger: OnNextRandom)=> () => { const bytes = []; for (let i = 0; i < 16; i++) { bytes.push(nextRandomInteger(0, 256)); } return Buffer.from(bytes) .toString('hex') .toLowerCase() .padStart(32, '0'); }; export default randomId;