curl --request GET \
  --url https://api.orafi.app/v1/customers \
  --header 'x-api-key: <api-key>'

{
  "success": true,
  "message": "<string>",
  "data": [
    {
      "id": "<string>",
      "firstname": "<string>",
      "lastname": "<string>",
      "email": "<string>",
      "totalSpent": 123
    }
  ]
}