How to post JSON to a server using C#?

Question

Here\'s the code I\'m using:

// create a request
HttpWebRequest request = (HttpWebRequest)
WebRequest.Create(url); request.KeepAlive = false;
request.Protoco         


        

Answer 1

Ademar's solution can be improved by leveraging JavaScriptSerializer's Serialize method to provide implicit conversion of the object to JSON.

Additionally, it is possible to leverage the using statement's default functionality in order to omit explicitly calling Flush and Close.

var httpWebRequest = (HttpWebRequest)WebRequest.Create("http://url");
httpWebRequest.ContentType = "application/json";
httpWebRequest.Method = "POST";

using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
{
    string json = new JavaScriptSerializer().Serialize(new
                {
                    user = "Foo",
                    password = "Baz"
                });

    streamWriter.Write(json);
}

var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
    var result = streamReader.ReadToEnd();
}