HttpRequest.Files is empty when posting file through HttpClient

Question

Server-side:

    public HttpResponseMessage Post([FromUri]string machineName)
    {
        HttpResponseMessage result = null;
        var httpRequest = Http         


        

Answer 1

In case someone else has the same problem: make sure your boundary string is valid, e.g. don't do this:

using (var content =
    new MultipartFormDataContent("Upload----" + DateTime.Now.ToString(CultureInfo.InvariantCulture)))
{
        ...
}

This failed for me due to an invalid boundary character, maybe the "/" date separator. At least this solved my problem when accessing Context.Request.Files in a Nancy controller (which was always empty).

Better to use something like DateTime.Now.Ticks.ToString("x") instead.