• There is a GET request that can be send to retrieve massive fiscal data for different documents in Json format from our system:
  
  https://einvoice-demo-portal.s1ecos.gr/api/invoice/getdocuments/Issuer_VAT?From=20220616&Το=20220616
  

In the Headers, APIKey must being included and in the query string, you must set your VAT and the dates that you wish to receive data for. The response is a json with the fiscalized data for all the documents that have been issued in the time period specified in the query string.