Authentication

curl -X POST https://api.pay.grain.inc/payment-sessions \
  -H "Authorization: Bearer your-api-key" \
  -H "Content-Type: application/json" \
  -d '{"amount": "50.00", "currency": "USD"}'

const response = await fetch("https://api.pay.grain.inc/payment-sessions", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.CUBEPAY_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({ amount: "50.00", currency: "USD" }),
});

// Server creates the session
const session = await createPaymentSession({ amount: "50.00", currency: "USD" });

// Client uses the session token
const result = await sdk.open({
  paymentSessionId: session.paymentSessionId,
  paymentSessionToken: session.paymentSessionToken,
});