C# RestSharp的http連接

using RestSharp;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using LitJson;

namespace WarehouseManager
{
    class HttpSend
    {
        /// <summary>
        /// Post連接服務器
        /// </summary>
        /// <param name="postUrl">後綴地址</param>
        /// <param name="keyValue">表單參數</param>
        /// <param name="Token">cookie</param>
        /// <returns></returns>
        public JsonData SendPost(string postUrl, Dictionary<string, string> keyValue = null, string Token = null)
        {
            var restClient = new RestClient(PathTypes.IP + postUrl);
            var request = new RestRequest(Method.POST);
            request.AddHeader(KeyTypes.ContentType, PathTypes.contentType);
            if (Token != null)
            {
                request.AddHeader(KeyTypes.token, Token);
            }
            if (keyValue != null)
            {
                foreach (var item in keyValue)
                {
                    request.AddParameter(item.Key, item.Value);
                }
            }
            var response = restClient.Execute(request).Content;
            return JsonMapper.ToObject(response);
        }
    }
}