Fetch Rates

Example response

{
  "type": "success",
  "message": "Rates retrieved successfully",
  "data": {
    "NGN-USD": 760.8073076604,
    "NGN-GBP": 867.9640718562874,
    "NGN-EUR": 756.9461077844312,
    "USD-NGN": 0.0013454693214093969,
    "GBP-NGN": 0.0012022695964534007,
    "EUR-NGN": 0.0013834650143003243
  }
}