How to send GET request with parameters?

Question

How can I send the parameters with GET request?

using (HttpClient client = new HttpClient())
{

    List<KeyValuePair<string, string>> queryParameters = new List<KeyValuePair<string, string>>
    {
        new KeyValuePair<string, string>("client_id", clientId),
        new KeyValuePair<string, string>("response_type", "code"),
        new KeyValuePair<string, string>("redirect_uri", redirectUri),
        new KeyValuePair<string, string>("state", "qwe123"),
    };

    HttpContent content = new FormUrlEncodedContent(queryParameters);

    client.

    HttpResponseMessage resp = await client.GetAsync("https://uri", content); //here is mistake

    string responseBody = await resp.Content.ReadAsStringAsync();

    Console.WriteLine(responseBody);
}

I tried to use KeyValuePair for configuring parameters. Thanks!

Check out this one https://stackoverflow.com/questions/17096201/build-query-string-for-system-net-httpclient-get — Leonid Ershov, Mar 14 '22 at 21:31
That's [not how to use HttpClient](https://www.aspnetmonsters.com/2016/08/2016-08-27-httpclientwrong/). — Dour High Arch, Mar 14 '22 at 21:54

score 0 · Answer 1 · answered Mar 15 '22 at 05:53

GetAsync doesn't take HttpContent as a second param in any of its overloaded methods, please check supported overloaded methods ms doc here

Have a look at similar case here

But, if you can change the api portion then better to change this to POST instead of GET

var response = await httpClient.PostAsync("https://uri", new FormUrlEncodedContent(queryParameters));
var contents = await response.Content.ReadAsStringAsync();

How to send GET request with parameters?

1 Answers1