Implementing OAuth

Quick Start

// lib/oauth/client.ts
import crypto from "crypto";

export function generatePKCE() {
  const codeVerifier = crypto.randomBytes(32).toString("base64url");
  const codeChallenge = crypto.createHash("sha256").update(codeVerifier).digest("base64url");
  const state = crypto.randomBytes(16).toString("hex");
  return { codeVerifier, codeChallenge, state };
}