How to upload information about products and their categories from TradeX to 1C Bitrix?

Question

1C-Bitrix

It is necessary to upload goods and their categories from TradeX to Bitrix. Didn't find anything useful on google. Uploading is carried out using TradeXDownLoad to an xml file, the question arises how to transfer this xml to Bitrix hosting.
The following options are currently being considered:
1) FTP - uploading an xml file using an FTP connection. You will need to upload the prepared xml file to the site from 1C Bitrix to the specified directory. Then import the data from the file.
2) SOAP - Setting up a SOAP connection and getting xml in the request-response format.
3) cURL - Loading a page generated in xml format. A request will be sent from the 1C Bitrix website to a page that will contain data for import in xml format.
4) JSON/JSONP
Has anyone been involved in integrating these two systems and setting up uploads, I don’t need a complete guide, I just would like to choose a specific technology for which to implement this further. Those. The main problem is the transfer of xml data to Bitrix from TradeX in automatic mode.

Answer 1

It seems to me that the main question is not how to transfer the file to the bitrix server (I would choose the third option, as the easiest), but how to upload the transferred XML to the bitrix database. As far as I remember, bitrix understands two formats for import, CommerceML and CSV. Can TradeX upload data in one of these formats? If not, then you will have to write an XML converter that will convert TradeX XML to CommerceML or CSV, or a bitrix module that will allow you to import data from TradeX XML.