demo.cs

using System;
using System.Threading;
using Hangfire.Common;
using MediatR;
using Microsoft.Practices.Unity;
using Newtonsoft.Json;

namespace Hangfire.Demo
{
    class Program
    {
        static void Main(string[] args)
        {
            var container = new UnityContainer();
            container.RegisterType<IMediator>(new InjectionFactory(x => new Mediator(type => x.Resolve(type), type => x.ResolveAll(type))));
            container.RegisterType<IRequestHandler<Command, Unit>>(new InjectionFactory(x => new Handler()));

            HangfireHelpers.Mediator = container.Resolve<IMediator>();

            GlobalConfiguration.Configuration
                .UseColouredConsoleLogProvider()
                .UseSqlServerStorage("MyHangfireConnection");

            JobHelper.SetSerializerSettings(new JsonSerializerSettings { TypeNameHandling = TypeNameHandling.Objects });

            using (var server = new BackgroundJobServer())
            {
                BackgroundJob.Enqueue(() => HangfireHelpers.Send(new Command { Message = "Hello World!" }));

                Console.WriteLine($"Hangfire Server started on Thread {Thread.CurrentThread.ManagedThreadId}.");
                Console.WriteLine("Press any key to exit...");
                Console.ReadKey();
            }
        }
    }

    public static class HangfireHelpers
    {
        public static IMediator Mediator { private get; set; }

        public static void Send(IRequest command)
        {
            Mediator.Send(command);
        }
    }

    public class Command : IRequest
    {
        public string Message { get; set; }
    }

    public class Handler : IRequestHandler<Command, Unit>
    {
        public Unit Handle(Command command)
        {
            Console.WriteLine($"{command.Message} from Thread {Thread.CurrentThread.ManagedThreadId}");
            return Unit.Value;
        }
    }
}