public async Task <VkUploadDocumentResponse> Upload(string url, string fileName, Stream docStream)
{
var client = new HttpClient();
string boundary = "----------" + DateTime.Now.Ticks.ToString("x");
var content = new MultipartFormDataContent(boundary);
var fileContent = new StreamContent(docStream);
fileContent.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
fileContent.Headers.ContentDisposition = new ContentDispositionHeaderValue("form-data")
{
FileName = "\"" + fileName + "\"",
Name = "\"file\""
};
content.Add(fileContent);
var responseMessage = await client.PostAsync(new Uri(url), content);
byte[] bytes = await responseMessage.Content.ReadAsByteArrayAsync();
Encoding encoding = Encoding.UTF8; //VK return windows-1251 which causes exception on Win10
string response = encoding.GetString(bytes, 0, bytes.Length);
Debug.WriteLine("VkLib upload response: " + response);
var json = JObject.Parse(response);
return(VkUploadDocumentResponse.FromJson(json));
}
public static VkUploadDocumentResponse FromJson(JObject json)
{
if (json == null)
{
throw new ArgumentNullException(nameof(json));
}
var result = new VkUploadDocumentResponse();
result.File = (string)json["file"];
return(result);
}