100 Character Limit on Accepting Payload of HTTP POST in my WCF Service?

Question

Hello,

I have a WCF Service that takes the payload of an HTTP POST and saves it as a string. However, it only seems to work when the payload is 99 characters or less. For example, I can make the payload 99 a's and it works. But, if I add on one more 'a', suddenly there is no response! This strange behavior works quite consistently.

Is there some reason for this, and more importantly, how can I make my program work for the huge payloads I am aiming for? I have included below my entire .cs file (there is no app config file)

Any help would be greatly appreciated! Thanks!


using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Net;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Activation;
using System.ServiceModel.Channels;
using System.ServiceModel.Description;
using System.ServiceModel.Dispatcher;
using System.ServiceModel.Web;
using System.Text;
using System.Web;
using System.Xml;

public class getString
{
    [ServiceContract] 
    public interface IService
    { 
        [OperationContract] 
        [WebInvoke] 
        void SaveString(Stream stream); 
    } 

        public class Service : IService 
        { 
            public void SaveString(Stream text)
            {
                /* stringText is POST payload stream converted to type string */
                string stringText = new StreamReader(text).ReadToEnd().Replace('*','\n');
                string currentTime = DateTime.Now.ToString();
                Console.WriteLine("\n{0}: Request received", currentTime);

                string currentTimeFormatted = DateTime.Now.ToString().Replace('/', '-').Replace(' ','_').Replace(':', '_');
                string currentFileName = "POSTPayload_" + currentTimeFormatted + ".xml";
                string currentDirectory = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);
                string desiredXmlFolder = "XMLResults";
               
                StreamWriter streamWriter = new StreamWriter(desiredXmlFolder + "\\" + currentFileName);
                streamWriter.WriteLine(stringText);
                streamWriter.Close();

                int currentFileSize = stringText.Length + 2;
                Console.WriteLine("HTTP POST payload saved as file:\nName: {0}\nDirectory: {1}\nExpected File Size: {2} bytes\n\n\nService running...\nPress <ENTER> To Exit\n\n", currentFileName, (currentDirectory + "\\" + desiredXmlFolder), currentFileSize);
            } 
        } 

        static Binding GetBinding() 
        { 
            BasicHttpBinding result = new BasicHttpBinding();
            return result; 
        } 

    public static void Main()
    {
        string baseAddress = "http://10.2.2.61:8004/Service";
        WebServiceHost host = new WebServiceHost(typeof(Service), new Uri(baseAddress));
        host.Open();
       
        Console.WriteLine("HTTP POST Payload Receiver\nWCF Web Service\n\nDefault Web Host: {0}\n", baseAddress);
        Console.WriteLine("1 - Modify Web Host\n2 - Exit\nPress <ENTER> To Run\n");

        string userChoice = Console.ReadLine();
        if (userChoice == "1")
        {
            Console.WriteLine("\nUSEAGE:    http://<IPv4>:<Port>/<Directory>");
            Console.Write("\nIPv4:      ");
            string ipv4 = Console.ReadLine();
            Console.Write("Port:      ");
            string port = Console.ReadLine();
            Console.Write("Directory: ");
            string directory = Console.ReadLine();
            baseAddress = "http://" + ipv4 + ":" + port + "//" + directory;
            Console.Write("\n");
        }
        else if (userChoice == "2")
            Environment.Exit(1);
        else { }

        Console.WriteLine("Web Host: {0}\n", baseAddress);

        WebClient client = new WebClient();
        client.Headers[HttpRequestHeader.ContentType] = "text/plain";
        Console.WriteLine("Service running...\nPress <ENTER> To Exit\n");
        Console.ReadLine();
        host.Close();
    }