हम पर निर्माण करें

import { createHmac, timingSafeEqual } from "node:crypto"

export function verify(rawBody: string, header: string, secret: string) {
  const expected = "sha256=" + createHmac("sha256", secret).update(rawBody).digest("hex")
  const a = Buffer.from(expected)
  const b = Buffer.from(header)
  return a.length === b.length && timingSafeEqual(a, b)
}