Example of http request C#

LocamailHttpRequest.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Collections;

namespace MailApiModule {
    public static class LocamailHttpRequest {        
        public static LocamailHttpResponse DoRequest(string url, Method method, object serializedData) {
            HttpWebRequest wb = WebRequest.Create(url) as HttpWebRequest;
            if (LocamailRequest.SERVICETICKET != null)
                wb.Headers["Service-Ticket"] = LocamailRequest.SERVICETICKET;

            if (LocamailRequest.IGNORESSLERRORS)
                ServicePointManager.ServerCertificateValidationCallback 
                    = ((sender, certificate, chain, sslPolicyErrors) => true);

            wb.Method = method.ToString();
            wb.AllowAutoRedirect = false;
            if (method != Method.GET) {
                string postData;
                // If is a primitive, then is a string otherwise must encode for post/put/delete request
                if (serializedData is string) {
                    wb.ContentType = "application/json";
                    postData = serializedData as string;
                    Console.WriteLine("POSTDATA application/json: " + postData);
                } else {
                    wb.ContentType = "application/x-www-form-urlencoded";
                    postData = UrlHelpers.UrlEncode(serializedData);
                    Console.WriteLine("POSTDATA x-www-form: " + postData);
                }


                byte[] data = Encoding.UTF8.GetBytes(postData);
                wb.ContentLength = data.Length;
                
                // Write to request body if isn't a GET request
                using (System.IO.Stream fStream = wb.GetRequestStream()) {
                    fStream.Write(data, 0, data.Length);
                }
            } else {
                //Debug
                Console.WriteLine("Serialized DATA is NULL. Method: " + method.ToString());
            }
            LocamailHttpResponse httpResponse = null;
            HttpWebResponse response = null;
            try {
                response = wb.GetResponse() as HttpWebResponse;
                httpResponse = new LocamailHttpResponse(response);
            } catch (WebException w) {
                if (w.Response == null)
                    throw;
                // Resposta da requisicao
                response = w.Response as HttpWebResponse;
                httpResponse = new LocamailHttpResponse(response);
            } finally {
                if (response != null)
                    response.Close();
            }
            return httpResponse;
        }
    }
    public enum Method {
        POST,
        PUT,
        GET,
        DELETE
    }

    public static class UrlHelpers {
        public static string UrlEncode(this object request, string separator = ",") {
            if (request == null)
                throw new ArgumentNullException("request");

            // Get all properties on the object
            var properties = request.GetType().GetProperties()
                .Where(x => x.CanRead)
                .Where(x => x.GetValue(request, null) != null)
                .ToDictionary(x => x.Name, x => x.GetValue(request, null));

            // Get names for all IEnumerable properties (excl. string)
            var propertyNames = properties
                .Where(x => !(x.Value is string) && x.Value is IEnumerable)
                .Select(x => x.Key)
                .ToList();

            // Concat all IEnumerable properties into a comma separated string
            foreach (var key in propertyNames) {
                var valueType = properties[key].GetType();
                var valueElemType = valueType.IsGenericType
                                        ? valueType.GetGenericArguments()[0]
                                        : valueType.GetElementType();
                if (valueElemType.IsPrimitive || valueElemType == typeof(string)) {
                    var enumerable = properties[key] as IEnumerable;
                    properties[key] = string.Join(separator, enumerable.Cast<object>());
                }
            }

            // Concat all key/value pairs into a string separated by ampersand
            return string.Join("&", properties
                .Select(x => string.Concat(
                    Uri.EscapeDataString(x.Key), "=",
                    Uri.EscapeDataString(x.Value.ToString()))));
        }
    }
}