restserver.cs

This example can be found in examples\csharp\restserver\restserver.cs. When the PST SDK has been installed through the PST Software Suite installer the examples can be found in the Development folder.

This example shows how to enable the REST server using the PST SDK. The REST server enables network-based access to the PST Tracker using the HTTP protocol. GET and POST requests can be made to the server to send and receive data and change parameters. The REST interface offers a programming language independent interface to the PST Tracker. Besides accessing the REST server directly using a browser, a networking library like Curl can be used to interface with the server programatically.

When compiling and running this example, please make sure that the required dependencies can be found by the executable (e.g. by copying the Redist directory into the build directory. When the PST SDK has been installed through the PST Software Suite installer the Redist folder can be found in the Development folder.).

// Copyright PS-Tech B.V. All Rights Reserved.
 
using System;
using System.Runtime.InteropServices;
using System.Threading;
using PSTech.Pstsdk;
 
namespace PSTech.RestServer
{
    public class RestServer
    {
        //Registering control handler function.
        [DllImport("Kernel32")]
        private static extern bool SetConsoleCtrlHandler(ConsoleEventHandler handler, bool add);
 
        private delegate bool ConsoleEventHandler(CtrlType sig);
        static ConsoleEventHandler ConsoleCtrlEventHandler;
 
        public enum CtrlType
        {
            CtrlCEvent = 0,
            CtrlBreakEvent = 1,
            CtrlCloseEvent = 2,
            CtrlLogOffEvent = 5,
            CtrlShutdownEvent = 6,
        }

        private static bool ConsoleHandler(CtrlType sig)
        {
            Exithandler((int)sig);
            return true;
        }

        static void Exithandler(int sig)
        {
            Tracker.DisableRestServer();
            Tracker.Shutdown(); // Cleans up native resources only; does NOT remove listeners
            Environment.Exit(0);
        }
 
        static int Main(string[] args)
        {
            // Register the exit handler with the application
            ConsoleCtrlEventHandler += new ConsoleEventHandler(ConsoleHandler);
            SetConsoleCtrlHandler(ConsoleCtrlEventHandler, true);
 
            // Implement error handling of PSTech.TrackerException exceptions to prevent
            // improper PST Tracker shutdown on errors.
            try
            {
                // Create an instance of the Tracker object using the default configuration path and file names.
                // Wrap the Tracker in a using statement to ensure Dispose() is called automatically
                using (Tracker tracker = new Tracker())
                {
 
                    // Start the tracker server.
                    tracker.StartTracker();
 
                    // Enable the REST server. To check if the REST server is started correctly, browse to
                    // http://localhost:7278/PSTapi/SystemCheck
                    // In order to use 127.0.0.1 an an address on Windows 7, execute the following command
                    // on an elevated command prompt to allow communication to this address:
                    // "netsh http add urlacl url=http://127.0.0.1:7278/ user=EVERYONE listen=yes delegate=no"
                    Tracker.EnableRestServer("localhost", "7278");
 
                    Console.Write("PST REST server enabled. See the PST SDK Manual for example commands.\n");
 
                    // Wait for one minute before terminating this application.
                    Thread.Sleep(60000);
 
                    // Disable the REST server
                    Tracker.DisableRestServer();
                }
            }
            catch (Exception e)
            {
                Console.Write(e + "\n");
                // Handle the error.
            }
 
            return 0;
        }
    }
}