WebRequest will not pass headers

问题

i have trolled and tried everything, i have done this 100's of times before without issues but now im stumped.

I simply want to pass header info from a webrequest.

The client runs separately and connects to a wcf rest service. The service has this code which gets hit:

HttpContext.Current.Response.AddHeader("Access-Control-Allow-Headers", "Authorization, Origin, Content-Type, Accept, X-Requested-With");

The client has this:

    var client = WebRequest.Create(url);
    client.Method = type.ToString().ToUpper();
    client.ContentType = "application/json";
    client.ContentLength = bytes.Length;
    client.Headers.Add(String.Format("Authorization: {0}", "test12345"));

I have also tried for example:

    client.Headers["X-Requested-With"] = "test1234";
    client.Headers["Authorization"] = "test1234";

No matter how i try and set the headers they are never passed. When I look at the request in fiddler, Authorization is NEVER there. I have also tried to send X-Requested-With, etc... but no matter what the header will not pass.

Thanks in advance.

UPDATE: I found the issue, but not the solutions: WebRequest will not pass headers when used from within ASP.NET MVC controller

回答1:

Does the server require authentication? According to this answer the WebRequest will not send credentials until challenged. If you want to send it regardless you may need to use a different class than WebRequest to send the request, eg RestSharp

回答2:

Instead of using WebRequest you can use RestSharp. It has a simple abstraction and API.

回答3:

I know that it is maybe a little too late (found this when looking for some answers to my question).

Don't know if it will help you, but mine is like this and I have the Authorization header in the server side and I'm using 4.5.1.

Client Side

HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
req.Headers[HttpRequestHeader.Authorization] = "basic " +
            Convert.ToBase64String(
            Encoding.ASCII.GetBytes(
            string.Format("{0}|{1}", "login", "password")));

string result = string.Empty;
using (WebResponse resp = (HttpWebResponse)req.GetResponse())
{
    using (StreamReader sr = new StreamReader(resp.GetResponseStream()))
    {
        result = sr.ReadToEnd();
    }
}

Server side

WebOperationContext.Current.IncomingRequest.Headers[HttpRequestHeader.Authorization]

回答4:

Use DefaultRequestHeaders

client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("test12345")

来源：https://stackoverflow.com/questions/27005799/webrequest-will-not-pass-headers

标签

webrequest