CODEWITHSUNDEEP
c#asp.net-web-apihttpclientfiddler
user1174790
user1174790

Reputation: 329

HttpClient does not work with Fiddler

I have gone through the forum and tried those techniques but still Fiddler is not able capture my traffic. Any help would help.

Following works with Fiddler, so my WebAPI server is working. My C# client returns OK. 

http://localhost:49305/api/Employee/12345

.

Host file

 #localhost name resolution is handled within DNS itself.
 #127.0.0.1       localhost
 #::1             localhost

.

    static async Task GoAny()
    {
        HttpClientHandler clntHand = new HttpClientHandler()
        {
            CookieContainer = new CookieContainer(),
            Proxy = new WebProxy("http://localhost:8888", false),
            UseProxy = true,
            UseDefaultCredentials = false
        };

        HttpClient clnt = new HttpClient(clntHand)
        {
            BaseAddress = new Uri("http://localhost:49305")
        };

        clnt.DefaultRequestHeaders.Accept.Clear();
        clnt.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));


        HttpResponseMessage resp = await clnt.GetAsync("api/Employee/12345");
        if (resp.StatusCode == System.Net.HttpStatusCode.OK)
        {

            string c = resp.Content.ToString();
        }
    }

Upvotes: 1

Views: 4527

Answers (1)

Karl Gjertsen
Karl Gjertsen

Reputation: 4928

This is a known issue when using localhost.

Your url is http://localhost:49305 and you need to change it to include .fiddler after localhost: http://localhost.fiddler:49305.

Once you have done this, the request from HttpClient should then appear in Fiddler.

Please see this SO question: How can I trace the HttpClient request using fiddler or any other tool?

Upvotes: 4

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