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

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