up vote 4 down vote favorite
5

All:

I need to add http headers to the HttpClient before I send a request to a web service. How do I do that for an individual request (as opposed to on the HttpClient to all future requests)? I'm not sure if this is even possible. 

        var client = new HttpClient();
        var task =
            client.GetAsync("http://www.someURI.com")
            .ContinueWith((taskwithmsg) =>
            {
                var response = taskwithmsg.Result;

                var jsonTask = response.Content.ReadAsAsync<JsonObject>();
                jsonTask.Wait();
                var jsonObject = jsonTask.Result;
            });
        task.Wait();

Thanks in advance for any help you provide.

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2 Answers

up vote 7 down vote accepted

Create a HTTPResponseMEssage, set the Method to GET, set your headers and then use SendAsync instead of GetAsync.

    var client = new HttpClient();
    var request = new HttpRequestMessage() {
                                               RequestUri = new Uri("http://www.someURI.com"),
                                               Method = HttpMethod.Get,
                                           };
    request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("text/plain"));
    var task = client.SendAsync(request)
        .ContinueWith((taskwithmsg) =>
        {
            var response = taskwithmsg.Result;

            var jsonTask = response.Content.ReadAsAsync<JsonObject>();
            jsonTask.Wait();
            var jsonObject = jsonTask.Result;
        });
    task.Wait();
}
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Just what I needed. Thanks! – Ryan Pfister Aug 19 '12 at 17:41
Thanks, Darrel! I was disappointed with HttpClient until I saw that you could do this. – Sam Feb 22 at 22:05
up vote 0 down vote

If you use RestSharp you can easily add them to the request (there is an example on the front page).

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