volker.renneberg

Hi,

This also haunted me and it took me a long time to find out the problem. Actually I analysed a trace from the curl-examples from the API-Documentation and here is the solution, that worked for me:

In your line
content.Add(new StreamContent(stream), "media", file.Name);
you have to use
"media[]" instead of "media"

Use multiContent with HttpClient.PostAsync:

HttpMultipartFormDataContent multiContent = new HttpMultipartFormDataContent();
            HttpStreamContent imageContent = new HttpStreamContent(await file.OpenReadAsync());
            multiContent.Add(imageContent, "media[]", "TheBild.jpg");

Cheers
Volker