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POWin Phone 8 / Asp .Net Web API Image Upload
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  1. POWin Phone 8 / Asp .Net Web API Image Upload
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    copied!<p>The following code responsible for uploading images:</p> <pre><code>[HttpPost] public async Task&lt;HttpResponseMessage&gt; Upload() { if (!Request.Content.IsMimeMultipartContent()) { throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType); } var streamProvider = new MultipartMemoryStreamProvider(); Cloudinary cloudinary = new Cloudinary(ConfigurationManager.AppSettings.Get("CLOUDINARY_URL")); return await Request.Content.ReadAsMultipartAsync(streamProvider).ContinueWith(t =&gt; { if (t.IsFaulted || t.IsCanceled) throw new HttpResponseException(HttpStatusCode.InternalServerError); var content = streamProvider.Contents.FirstOrDefault().ReadAsStreamAsync(); ImageUploadParams uploadParams = new ImageUploadParams() { File = new CloudinaryDotNet.Actions.FileDescription(Guid.NewGuid().ToString(), content.Result) }; ImageUploadResult uploadResult = cloudinary.Upload(uploadParams); string url = cloudinary.Api.UrlImgUp.BuildUrl(String.Format("{0}.{1}", uploadResult.PublicId, uploadResult.Format)); return Request.CreateResponse&lt;MediaModel&gt;(HttpStatusCode.Created, new MediaModel { URL = url }); }); } </code></pre> <p>It works via jquery post request. However, in win phone 8 application, the following code does not seem to make a request to the api:</p> <pre><code>public async Task&lt;string&gt; UploadImage(byte[] image) { var client = new HttpClient(); var content = new MultipartFormDataContent(); var imageContent = new ByteArrayContent(image); imageContent.Headers.ContentType = MediaTypeHeaderValue.Parse("image/jpeg"); content.Add(imageContent, "image", string.Format("{0}.jpg", Guid.NewGuid().ToString())); return await client.PostAsync(baseURL + "image/Upload", content).Result.Content.ReadAsStringAsync().ContinueWith(t =&gt; { return t.Result; }); } </code></pre> <p>What is the problem here? I hope someone could show me the proper use of httpclient.</p>
 

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