curl --request GET \
  --url https://api.decodahealth.com/dashboard/overview \
  --header 'API-KEY: <api-key>' \
  --header 'TENANT: <tenant>'

{
  "totalRevenueFromPos": 123,
  "topSellingItems": [
    {
      "id": "<string>",
      "name": "<string>",
      "totalQuantity": 123,
      "totalRevenue": 123
    }
  ],
  "topCustomers": [
    {
      "id": "<string>",
      "name": "<string>",
      "totalSpend": 123,
      "transactionCount": 123
    }
  ],
  "period": {
    "startDate": "<string>",
    "endDate": "<string>"
  },
  "todayChange": 123
}