jsonrpc.cs

// credit for this goes to makerofthings7 on stack exchange

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System.Net;
using System.Web;
using System.IO;

namespace JsonRPC
{
    class Program
    {
        static void Main(string[] args)
        {
            
        }

        public JObject InvokeMethod(string url, string a_sMethod, params object[] a_params)
        {
            var webRequest = (HttpWebRequest)WebRequest.Create(url);
            webRequest.ContentType = "application/json-rpc";
            webRequest.Method = "POST";

            var joe = new JObject();
            joe["jsonrpc"] = "2.0";
            joe["id"] = "1";
            joe["method"] = a_sMethod;


            if (a_params != null)
            {
                if (a_params.Length > 0)
                {
                    JArray props = new JArray();
                    foreach (var p in a_params)
                    {
                        props.Add(p);
                    }
                    joe.Add(new JProperty("params", props));
                }
            }

            var s = JsonConvert.SerializeObject(joe);
            // serialise json for the request
            var byteArray = Encoding.UTF8.GetBytes(s);
            webRequest.ContentLength = byteArray.Length;

            try
            {
                using (var dataStream = webRequest.GetRequestStream())
                {
                    dataStream.Write(byteArray, 0, byteArray.Length);
                }
            }
            catch (WebException we)
            {
                Console.WriteLine(we.StackTrace);
            }
            WebResponse webResponse = null;
            try
            {
                using (webResponse = webRequest.GetResponse())
                {
                    using (var str = webResponse.GetResponseStream())
                    {
                        using (var sr = new StreamReader(str))
                        {
                            return JsonConvert.DeserializeObject<JObject>(sr.ReadToEnd());
                        }
                    }
                }
            }
            catch (WebException we)
            {
                using (var str = we.Response.GetResponseStream())
                {
                    using (var sr = new StreamReader(str))
                    {
                        return JsonConvert.DeserializeObject<JObject>(sr.ReadToEnd());
                    }
                }
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}