Brief Discussion About RestHelper?Why We Have to Go For Rest-client?

REST web services have become mainstream and it is important as a developer to know how to communicate with the onslaught of services built using this architecture which now flood our industry. In this article I will provide you with a module I developed for making web request to REST services using C# and give you some details on how the code works.

1.Firstly you have To add 
  a.Restsharp
  b.Newtonsoftjson From nuget packages.
 After that u have to add a RestHelper class(Resthelper.cs)
and then call in ur required place.

RestHelper
    public class RestHelper
    {
        public static IRestResponse PostBasicAuthenication(string baseUrl, string resourceUrl, string userName, string password, string json)
        {
            var client = new RestClient(baseUrl);
            client.Authenticator = new HttpBasicAuthenticator(userName, password);
            var request = new RestRequest(resourceUrl, Method.POST);
            request.AddParameter("text/json", json, ParameterType.RequestBody);
            request.RequestFormat = DataFormat.Json;
            return client.Execute(request);
        }
        public static IRestResponse Post(string baseUrl, string resourceUrl, string json)
        {
            var client = new RestClient(baseUrl);
            var request = new RestRequest(resourceUrl, Method.POST);
            request.AddParameter("text/json", json, ParameterType.RequestBody);
            request.RequestFormat = DataFormat.Json;
            return client.Execute(request);
        }

        public static string ConvertObjectToJason<T>(T arg)
        {
            return JsonConvert.SerializeObject(arg);
        }
               public static IRestResponse Get(string baseUrl, string resourceUrl, List<List<string, string>> paraMeters)
        {
            string parameters = null;
            if (paraMeters.Any())
            {
                parameters = paraMeters.Aggregate(parameters, (current, param) => current + (param.Name + "=" + param.Value + "&"));
                parameters = parameters.Trim('&');
            }
            var client = new RestClient(baseUrl);
            RestRequest request;
            if (parameters == null)
            {
                request = new RestRequest(resourceUrl, Method.GET);
            }
            else
            {
                request = new RestRequest(resourceUrl + "?" + parameters, Method.GET);
            }
            request.RequestFormat = DataFormat.Json;
            return client.Execute(request);
        }
        public static IRestResponse Get(string baseUrl, string resourceUrl)
        {
            var client = new RestClient(baseUrl);
            RestRequest request;
            request = new RestRequest(resourceUrl, Method.GET);
            request.RequestFormat = DataFormat.Json;
            return client.Execute(request);
        }
    public class List<T, D>
    {
        public T Name { get; set; }
        public D Value { get; set; }
    }

        //public static ResponseObject GetResponseObject(IRestResponse response)
        //{
        //    return JsonConvert.DeserializeObject<ResponseObject>(response.Content);
        //}
    }

Program.cs

    public class Program
    {
        static void Main(string[] args)
        {
            var address = new Address();
            address.AddressLabel = "Jill's Address";
            address.City = "Rock Island";
            address.Country = "US";
            address.State = "IL";
            address.Street = "123 Main";
            address.Zip = "61201";
            var json = RestHelper.ConvertObjectToJason(address);
            try
            {
                object obj = address;
                string url = ConfigurationManager.AppSettings["IdentityBean"].ToString();
                var response = RestHelper.Post(url, "api/journal/updateposting", json);
                if (response.ErrorMessage != null)
                {
                }
            }
            catch (Exception ex)
            {
                var message = ex.Message;
            }
        }
    }
    public class Address
    {
        public string AddressLabel { get; set; }
        public string City { get; set; }
        public string Country { get; set; }
        public string State { get; set; }
        public string Street { get; set; }
        public string Zip { get; set; }

    }