How do I set a cookie on HttpClient's HttpRequestMessage

Question

I am trying to use the web api's HttpClient to do a post to an endpoint that requires login in the form of an HTTP cookie that identifies an account (this is only something that is #ifdef'ed out of the release version).

How do I add a cookie to the HttpRequestMessage?

Answer 1

Here's how you could set a custom cookie value for the request:

var baseAddress = new Uri("http://example.com"); var cookieContainer = new CookieContainer(); using (var handler = new HttpClientHandler() { CookieContainer = cookieContainer }) using (var client = new HttpClient(handler) { BaseAddress = baseAddress }) {     var content = new FormUrlEncodedContent(new[]     {         new KeyValuePair<string, string>("foo", "bar"),         new KeyValuePair<string, string>("baz", "bazinga"),     });     cookieContainer.Add(baseAddress, new Cookie("CookieName", "cookie_value"));     var result = await client.PostAsync("/test", content);     result.EnsureSuccessStatusCode(); }