Function base64URLEncode

src/services/oauth/crypto.ts:3–9

(buffer: Buffer)

import { createHash, randomBytes } from 'crypto'

function base64URLEncode(buffer: Buffer): string {
  return buffer
    .toString('base64')
    .replace(/\+/g, '-')
    .replace(/\//g, '_')
    .replace(/=/g, '')
}

export function generateCodeVerifier(): string {
  return base64URLEncode(randomBytes(32))