Hi @nkos,
This should be possible but is a bit tricky in n8n at the moment. From looking at the documentation you have linked it seems the API requires binary and JSON data in a single request. This is a bit tricky with n8n and requires using the Function node. @RicardoE105 has built an example workflow implementing this which you can check out here:
So with this in mind you might find it easier to read the CSV file in n8n and then use an endpoint not requiring binary and JSON data combined (possibly this one). This would allow to use the HTTP Request node instead of the more complex Function node.