message: fix: Use correct sandbox API key in demo
diff: @@ -9,18 +9,18 @@ if (process.env.USE_SANDBOX === 'true') {
  console.info("Using Coinbase Pro's public sandbox with API key...");
  client = new CoinbasePro({
  - apiKey: process.env.COINBASE_PRO_API_KEY!,
  - apiSecret: process.env.COINBASE_PRO_API_SECRET!,
  - passphrase: process.env.COINBASE_PRO_PASSPHRASE!,
  + apiKey: process.env.COINBASE_PRO_SANDBOX_API_KEY!,
  + apiSecret: process.env.COINBASE_PRO_SANDBOX_API_SECRET!,
  + passphrase: process.env.COINBASE_PRO_SANDBOX_PASSPHRASE!,
  useSandbox: true,
  });
  } else if (process.env.USE_SANDBOX === 'false') {
  console.info("Using Coinbase Pro's production environment with API key...");
  client = new CoinbasePro({
  - apiKey: process.env.COINBASE_PRO_SANDBOX_API_KEY!,
  - apiSecret: process.env.COINBASE_PRO_SANDBOX_API_SECRET!,
  - passphrase: process.env.COINBASE_PRO_SANDBOX_PASSPHRASE!,
  + apiKey: process.env.COINBASE_PRO_API_KEY!,
  + apiSecret: process.env.COINBASE_PRO_API_SECRET!,
  + passphrase: process.env.COINBASE_PRO_PASSPHRASE!,
  useSandbox: false,
  });
  } else {
  