Function base64BasicCredentials

packages/core/sdk/src/oauth-helpers.ts:954–959

(clientId: string, clientSecret: string)

// `method` only chooses HOW a present secret is sent (post vs either Basic
// credential encoding).
const base64BasicCredentials = (clientId: string, clientSecret: string): string => {
  const bytes = new TextEncoder().encode(`${clientId}:${clientSecret}`);
  let binary = "";
  for (const byte of bytes) binary += String.fromCharCode(byte);
  return globalThis.btoa(binary);
};

const rawClientSecretBasic =
  (clientSecret: string): oauth.ClientAuth =>