export const encodeBase64Url = (bytes: Uint8Array): string => {
  let binary = "";
  for (let i = 0; i < bytes.length; i += 1) {
    binary += String.fromCharCode(bytes[i]);
  }
  return btoa(binary).replace(/\+/g, "-").replace(/\//g, "_").replace(/=+$/, "");
};

export const sha256 = async (input: string): Promise<string> => {
  const digest = await crypto.subtle.digest("SHA-256", new TextEncoder().encode(input));
  return encodeBase64Url(new Uint8Array(digest));
};