Error Handling

{
  "Message": "Description of what went wrong.",
  "StatusCode": 400,
  "Result": false,
  "Errors": [
    {
      "Field": "Amount",
      "Message": "Amount must be greater than 0."
    }
  ]
}

{
  "Message": "Validation failed.",
  "StatusCode": 400,
  "Result": false,
  "Errors": [
    { "Field": "Purpose", "Message": "This field is required." },
    { "Field": "Amount", "Message": "This field is required." }
  ]
}

{
  "Message": "Validation failed.",
  "StatusCode": 400,
  "Result": false,
  "Errors": [
    { "Field": "Currency", "Message": "Currency must be one of: EUR, USD, GBP, CHF, CAD, RON, JPY." },
    { "Field": "SuccessRedirectUrl", "Message": "URL must use HTTPS protocol." }
  ]
}

async function createPaymentLink(payload) {
  const response = await fetch('https://app.roxpay.eu/api/v4/payments/link', {
    method: 'POST',
    headers: {
      'Authorization': `Bearer ${token}`,
      'Content-Type': 'application/json',
    },
    body: JSON.stringify(payload),
  });

  const data = await response.json();

  if (!data.Result) {
    if (data.StatusCode === 401) {
      await refreshToken();
      return createPaymentLink(payload);
    }
    throw new ApiError(data.Message, data.Errors);
  }

  return data;
}