Api request from Google Refine by Maria da Graça Moreira

Hi,

I'm trying to get an inventory spreadsheet pulling variant information using an API call on Google Refine. I'm following this tutorial: 

https://github.com/OpenRefine/OpenRefine/wiki/Fetching-URLs-From-Web-Services

But I'm getting a 401 error. I'm using a private app and the url provided:

https://[apikey]:[password]@[hostname]/admin/variants/[variant-id].json

Is this even possible. What am I doing wrong?

Thank you,

Ana Rita