dotnet-httpclient

HttpClient includes this as 'Keep-Alive' by default. I've been able to set it to 'Close' using httpClient.DefaultRequestHeaders.ConnectionClose = true; but how do I omit it altogether? I've seen this asked before and to my knowledge no one ( not even the great Jon Skeet ) has come up with a way to avoid sending the Connection header in the HttpClient or HttpWebRequest worlds without completely reinventing the wheel. It's happening somewhere very deep down in the weeds. ConnectionClose is nullable, but setting it to null on both HttpClient.DefaultRequestHeaders AND HttpRequestMethod.Headers

I have one api calling another. and here is my code which seems to cause ModelState.IsValid = false on the other side of world. var baseUri = new Uri("http://localhost:5001/"): _httpClient.BaseAdress = baseUri; var data = new StringContent(content: model.Tostring(), encoding: Encoding.UTF8, mediaType: "application/json"); var response = await _httpClient.PostAsync("api/product", data); watching Post([FromBody]Product product) on the api being called I just see product=null . changing to Post([FromBody]object product) also shows null . calling the api from Postman works perfectly fine. which

I want to call Api function (1st) . from 2nd Api function using HttpClient . But I always get 404 Error. 1st Api Function ( EndPoint : http : // localhost : xxxxx /api/Test/) public HttpResponseMessage Put(int id, int accountId, byte[] content) [...] 2nd Api function public HttpResponseMessage Put(int id, int aid, byte[] filecontent) { WebRequestHandler handler = new WebRequestHandler() { AllowAutoRedirect = false, UseProxy = false }; using (HttpClient client = new HttpClient(handler)) { client.BaseAddress = new Uri("http://localhost:xxxxx/"); // Add an Accept header for JSON format. client

We can read here YOU'RE USING HTTPCLIENT WRONG AND IT IS DESTABILIZING YOUR SOFTWARE that we should not create and dispose HttpClient for each http request. Instead, it should be cached and reused (e.g as Singleton in DI container). As well in official .NET documentation for HttpClient : HttpClient is intended to be instantiated once and re-used throughout the life of an application. Instantiating an HttpClient class for every request will exhaust the number of sockets available under heavy loads. This will result in SocketException errors. Below is an example using HttpClient correctly. The

I want to run asynchronous uploads with a progress bar in WPF (and preferably use PCL for code reuse in Xamarin and SL too.) I've been trying to use System.Net.HttpClient. Unfortunately, PutAsync doesn't provide any progress notifications. (I know that it does for Windows.Web.Http.HttpClient, but that's not available for WPF, nor in the PCL). For downloading, its fairly easy to implement your own progress bar, as described here . You just pass the ResponseHeadersRead option, which makes the stream available as soon as the headers are returned, and then you read it in chunk by chunk,

Is there anything wrong with my code here? I keep getting this error: System.InvalidOperationException: The request message was already sent. Cannot send the same request message multiple times. My HttpRequestMessage is inside a Func so I figured I get a brand new request each time I pass in func(). public async Task<HttpResponseMessage> GetAsync(HttpRequestMessage request) { return await RequestAsync(() => request); } public async Task<HttpResponseMessage> RequestAsync(Func<HttpRequestMessage> func) { var response = await ProcessRequestAsync(func); if (response.StatusCode == HttpStatusCode

How do I access the response headers, before the entire response has been streamed back? How do I read the stream as it arrives? Is HttpClient my best choice for such granular control of receiving the http response? Here's a snip that might illustrate my question: using (var response = await _httpClient.SendAsync(request, HttpCompletionOption.ResponseHeadersRead)) { var streamTask = response.Content.ReadAsStreamAsync(); //how do I check if headers portion has completed? //Does HttpCompletionOption.ResponseHeadersRead guarantee that? //pseudocode while (!(all headers have been received)) /

I'm using the HttpClient class to communicate to a web service in my WPF application. When I make consecutive GET requests on the same connection, everything works fine. However, when I make consecutive PUT/PATCH requests on the same connection, the first request executes accurately and I receive a response but the second request does not include the body in the request and I receive the infamous error of "The server committed a protocol violation. Section=ResponseStatusLine". My requests do complete successfully if I manually close the connection after every request by adding Connection: