const merchantHeaders = {
  'X-SpacePay-Secret-Key': 'sk_test_your_secret_key',
  'Content-Type': 'application/json',
  'Idempotency-Key': 'unique-key-for-request', // optional but recommended
};

const response = await fetch('https://api.spacepay.solutions/v1/external/secretkey-auth/payments', {
  method: 'POST',
  headers: merchantHeaders,
  body: JSON.stringify({
    type: 'payment',
    orderId: 'order_123',
    amount: 250,
    currency: 'USD',
    redirectUrl: 'https://merchant.example.com/checkout/success',
    customMetadata: '{"cartId":"abc123","promo":"SUMMER24"}',
  }),
});

const { paymentId, paymentUrl } = await response.json();

const response = await fetch('https://api.spacepay.solutions/v1/external/secretkey-auth/payments', {
  method: 'POST',
  headers: merchantHeaders,
  body: JSON.stringify({
    type: 'deposit',
    currency: 'USD',
    orderId: 'order_123',
    redirectUrl: 'https://merchant.example.com/checkout/success',
    customMetadata: '{"cartId":"abc123"}',
  }),
});

const { paymentId, paymentUrl } = await response.json();

const params = new URLSearchParams({
  status: 'pending',
  limit: '50',
  offset: '0',
});
const response = await fetch(
  `https://api.spacepay.solutions/v1/external/secretkey-auth/payments?${params}`,
  { headers: { 'X-SpacePay-Secret-Key': 'sk_test_your_secret_key' } }
);
const { data, pagination } = await response.json();

const response = await fetch(
  `https://api.spacepay.solutions/v1/external/secretkey-auth/payments/${paymentId}`,
  {
    headers: { 'X-SpacePay-Secret-Key': 'sk_test_your_secret_key' },
  }
);

const payment = await response.json();

const response = await fetch(
  'https://api.spacepay.solutions/v1/external/secretkey-auth/withdrawals',
  {
    method: 'POST',
    headers: merchantHeaders,
    body: JSON.stringify({
      amountInCents: 1000,
      chainId: 84532,
      recipientAddress: '0x31adfE243828bb73E5186f77A66de459a4f568A8',
      orderId: 'Order_1234567890',
      currency: 'USD',
      customMetadata: '{"cartId":"abc123"}',
    }),
  }
);

try {
  const response = await fetch(url, options);

  if (!response.ok) {
    const error = await response.json();
    console.error('API Error:', error.message);
    console.error('Error Code:', error.code);
  }
} catch (error) {
  console.error('Network Error:', error.message);
}