curl --request POST \
  --url https://api.cashful.africa/api/canary/payment-links \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "totalAmount": 123,
  "currency": "<string>",
  "mode": "payment",
  "successUrl": "<string>",
  "cancelUrl": "<string>",
  "metadata": {
    "orderId": "12345",
    "customField": "value"
  }
}
'

{
  "id": "plink_001",
  "name": "Summer Sale Link",
  "description": "Payment link for the summer sale campaign",
  "merchantId": "merchant_456",
  "url": "https://checkout.cashful.africa/plink_001",
  "totalAmount": 15000,
  "currency": "ZAR",
  "mode": "payment",
  "active": true,
  "successUrl": "https://example.com/success",
  "cancelUrl": "https://example.com/cancel",
  "lineItems": [
    {
      "name": "Product A",
      "amount": 15000,
      "quantity": 1,
      "currency": "ZAR"
    }
  ],
  "metadata": {
    "campaign": "summer_sale"
  },
  "createdAt": "2025-01-15T10:30:00.000Z",
  "updatedAt": "2025-01-15T10:30:00.000Z",
  "deletedAt": null
}