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POError with a file upload WCF WEB API (Preview 6) : Cannot write more bytes to the buffer than the configured maximum buffer size: 65536
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  1. POError with a file upload WCF WEB API (Preview 6) : Cannot write more bytes to the buffer than the configured maximum buffer size: 65536
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    copied!<p>I'm having a real problem with the WCF web api.</p> <p>I have a simple method that uploads a file and saves to disk. I seem to have set all the right params, but get the above error message when I try to upload a 2mb file.</p> <p>Server Code:</p> <pre><code>public static void RegisterRoutes(RouteCollection routes) { routes.IgnoreRoute("{resource}.axd/{*pathInfo}"); HttpServiceHostFactory _factory = new HttpServiceHostFactory(); var config = new HttpConfiguration() { EnableTestClient = true, IncludeExceptionDetail = true, TransferMode = System.ServiceModel.TransferMode.Streamed, MaxReceivedMessageSize = 4194304, MaxBufferSize = 4194304 }; _factory.Configuration = config; RouteTable.Routes.Add(new ServiceRoute("api/docmanage", _factory, typeof(WorksiteManagerApi))); } </code></pre> <p>client:</p> <pre><code>HttpClientHandler httpClientHandler = new HttpClientHandler(); httpClientHandler.MaxRequestContentBufferSize = 4194304; var byteArray = Encoding.ASCII.GetBytes(ConnectionSettings.WebUsername + ":" + ConnectionSettings.WebPassword); HttpClient httpClient = new HttpClient(httpClientHandler); httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", Convert.ToBase64String(byteArray)); httpClient.BaseAddress = new Uri(ConnectionSettings.WebApiBaseUrl); httpClient.MaxResponseContentBufferSize = 4194304; ... multipartFormDataContent.Add(new FormUrlEncodedContent(formValues)); multipartFormDataContent.Add(byteArrayContent); var postTask = httpClient.PostAsync("api/docmanage/UploadFile", multipartFormDataContent); </code></pre> <p>Then, on the server:</p> <pre><code>[WebInvoke(Method = "POST")] public HttpResponseMessage UploadFile(HttpRequestMessage request) { // Verify that this is an HTML Form file upload request if (!request.Content.IsMimeMultipartContent("form-data")) { throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType); } // Create a stream provider for setting up output streams MultipartFormDataStreamProvider streamProvider = new MultipartFormDataStreamProvider(); // Read the MIME multipart content using the stream provider we just created. IEnumerable&lt;HttpContent&gt; bodyparts = request.Content.ReadAsMultipart(streamProvider); foreach (var part in bodyparts) { switch (part.Headers.ContentType.MediaType) { case "application/octet-stream": if (part.Headers.ContentLength.HasValue) { // BLOWS UP HERE: var byteArray = part.ReadAsByteArrayAsync().Result; if (null == fileName) { throw new HttpResponseException(HttpStatusCode.NotAcceptable); } else { uniqueFileId = Guid.NewGuid().ToString(); string tempFilename = Path.GetTempPath() + @"\" + uniqueFileId + fileName; using (FileStream fileStream = File.Create(tempFilename, byteArray.Length)) { fileStream.Write(byteArray, 0, byteArray.Length); } } } break; } } } </code></pre> <p>Any ideas? I am using the latest preview of the web api.... I noticed a lot is missing from the support documentation but it seems there is some buffer limit that I can't find out how to specify or is being ignored.....</p>
 

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