How to call API from controller with multiple json parameter

Question

I want to call Web API from controller with multiple json parameter. I don't want to use ajax call for get result.

 

 

var jsonData = "{\"jsonrpc\":2.0," +
                "\"method\":eth_blockNumber," +
                "\"params\":[]," +
                "\"id\":83}";

            HttpWebRequest webreq = (HttpWebRequest)WebRequest.Create(string.Format("https://mainnet.infura.io/qhggowRXK7HIgXB0NEyw",jsonData));
            webreq.Method = "POST";
            webreq.ContentType = "application/json";
            using (var streamWriter = new StreamWriter(webreq.GetRequestStream()))
            {
                JavaScriptSerializer serializer = new JavaScriptSerializer();
                //var resToWrite = serializer.Deserialize<Dictionary<string, object>>(jsonData);
                //streamWriter.Write(jsonData);
                streamWriter.Flush();
                streamWriter.Close();
            }
            WebResponse response = webreq.GetResponse();
            var streamReader = new StreamReader(response.GetResponseStream());
            var result = streamReader.ReadToEnd();