Post a string to restful webservice in C# - webservices-client

Question

I am provided a webservice url similar to:
http://ericdev35:7280/persons/persons/
and a username and password.
I want to make a post call on this web service from WPF application.
The data to be sent to the service is the first name and last name of a person in the format:
"fname=Abc&lname=Xyz"
How can I make a call for this in C#?
Here is the code that I have tried:
HttpWebRequest httpWebRequest = (HttpWebRequest) WebRequest.Create("http://ericdev35:7280/persons/persons/");
httpWebRequest.Method = "POST";
httpWebRequest.ContentType = "application/json";
httpWebRequest.Credentials = new NetworkCredential(username, password);
string data = "fname=Abc&lname=Xyz";
StreamWriter writer = new StreamWriter(httpWebRequest.GetRequestStream());
writer.Write(data);
writer.Close();
This does not give me any error but I cannot see the data that I have posted. Is there anything that needs to be corrected?
Is the Content Type correct?

Answer 1

This Method posts json.
After that it gets the response and deserialize the Json Object.
private static string PostJson<T1>(string p_url, string p_json, string p_method, out T1 p_target)
{
var httpWebRequest = (HttpWebRequest)WebRequest.Create(p_url);
httpWebRequest.UseDefaultCredentials = true;
httpWebRequest.ContentType = "application/json";
httpWebRequest.Method = p_method;
using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
{
streamWriter.Write(p_json);
streamWriter.Flush();
streamWriter.Close();
}
HttpWebResponse httpResponse;
try
{
httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
}
catch (WebException ex)
{
httpResponse = ex.Response as HttpWebResponse;
}
using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
var a_result = streamReader.ReadToEnd();
//If you dont need a Json object delete anything behind here
try
{
p_target = JsonConvert.DeserializeObject<T1>(a_result);
}
catch { p_target = default(T1); }
return a_result;
}
}