>Don't know what Upload.upload() does but given that you are getting a percent encoded string on the server side:
>
>Replace %20 with a space, %5b with '[' and %5D with ']'
>That should give you a Json object which you can convert to a C# class

Thanks, Viv. We were able to do another step ahead yesterday by passing this info using Content-type: json for the headers section. I suggested this yesterday to my colleague and he told me he was able to get the result back afterwards.