curl --request GET \
  --url https://sandbox.api.riqra.com/customers \
  --header 'api-key: <api-key>'

{
  "data": [
    {
      "id": 123,
      "firstName": "<string>",
      "lastName": "<string>",
      "phone": "<string>",
      "email": "<string>",
      "loginCode": "<string>",
      "createdAt": "<string>",
      "priceListId": 123,
      "erpCode": "<string>",
      "birthdate": "<string>",
      "documents": [
        {
          "number": "<string>",
          "fiscalAddress": "<string>",
          "fiscalName": "<string>",
          "email": "<string>",
          "isDefault": true,
          "forTaxes": true
        }
      ]
    }
  ]
}