public interface IService
    {
        void Sample();
    }
    [ServiceConfiguration(ServiceType = typeof(IService))]
    public class TransientService : IService
    {
        public void Sample()
        {
            throw new NotImplementedException();
        }
    }
    [ServiceConfiguration(ServiceType = typeof(IService), Lifecycle = ServiceInstanceScope.Singleton)]
    public class SingletonService : IService
    {
        public void Sample()
        {
            throw new NotImplementedException();
        }
    }

[InitializableModule]
    public class ModuleWithServices : IConfigurableModule
    {
        public void ConfigureContainer(ServiceConfigurationContext context)
        {
            //Register IService1 with implementation Service1, create new instance every time
            context.Services.AddTransient<IService, Service>();
            //Register IService1 with implementation Service1, re-use a single instance
            context.Services.AddSingleton<IService, Service>();
            //Register IService1 with custom factory
            context.Services.AddTransient<IService>((locator) => new Service());
            //Register IService1 to be cached per HTTP request or per thread if no HTTP request exist
            context.Services.AddHttpContextOrThreadScoped<IService, Service>();
        }
        public void Initialize(InitializationEngine context)
        {
        }
        public void Uninitialize(InitializationEngine context)
        {
        }
    }

using EPiServer.Framework;
using EPiServer.Framework.Initialization;
using EPiServer.ServiceLocation;
using EPiServer.ServiceLocation.Compatibility;
namespace EPiServerSamples
{
   [InitializableModule]
   public class ModuleWithServices : IConfigurableModule
   {
       public void ConfigureContainer(ServiceConfigurationContext context)
       {
           //Remove code using Container (StructureMap)
           //context.Container.Configure(c =>
           //{
           //    c.For<IService>().Use<Service>();
           //});
           context.Services.Configure(c =>
           {
               c.For<IService>().Use<Service>();
           });
       }
       public void Initialize(InitializationEngine context)
       {
       }
       public void Uninitialize(InitializationEngine context)
       {
       }
   }
}

ServiceLocator

To get an instance of a service without using dependency injection, use the ServiceLocator class and its Current property. Example:

var myService = ServiceLocator.Current.GetInstance<IService>();

Intercept existing services [New in 9.10]

There are occations where it is useful to intercept calls to a service. For example to debug or to add logging. By using IServiceConfigurationProvider.Intercept<T> method it is possible to replace existing services with an other implementation. The provided factory method will have access to the default instance of the service.

In case there are several implementations registered for a service then all registrations will be intercepted. The interceptor service will have the same scope as the intercepted service was registered with.

This example shows an interceptor registration of the ISynchronizedObjectInstanceCache where the interceptor logs remote removals.

using EPiServer.Framework;
using EPiServer.Framework.Cache;
using EPiServer.Framework.Initialization;
using EPiServer.Logging;
using EPiServer.ServiceLocation;
using System;

namespace EPiServerSamples
{
    [ModuleDependency(typeof(EPiServer.Web.InitializationModule))]
    public class LoggingInitializer : IConfigurableModule
    {
        public void ConfigureContainer(ServiceConfigurationContext context)
        {
            context.Services.Intercept<ISynchronizedObjectInstanceCache>(
                (locator, defaultCache) => new LoggingSynchronizedCache(defaultCache));
        }
        public void Initialize(InitializationEngine context) { }
        public void Uninitialize(InitializationEngine context) { }
    }
    public class LoggingSynchronizedCache : ISynchronizedObjectInstanceCache
    {
        private readonly ISynchronizedObjectInstanceCache _defaultCache;
        private readonly ILogger _log = LogManager.GetLogger(typeof(LoggingSynchronizedCache));

        public LoggingSynchronizedCache(ISynchronizedObjectInstanceCache defaultCache)
        {
            _defaultCache = defaultCache;
        }
        public void RemoveRemote(string key)
        {
            if (_log.IsDebugEnabled())
                _log.Debug($"Remote removal called at '{DateTime.Now}' with key '{key}'");

            _defaultCache.RemoveRemote(key);
        }
        public IObjectInstanceCache ObjectInstanceCache => _defaultCache.ObjectInstanceCache;
        public FailureRecoveryAction SynchronizationFailedStrategy
        {
            get { return _defaultCache.SynchronizationFailedStrategy; }
            set { _defaultCache.SynchronizationFailedStrategy = value; }
        }
        public object Get(string key) => _defaultCache.Get(key);
        public void Insert(string key, object value, CacheEvictionPolicy evictionPolicy)
            => _defaultCache.Insert(key, value, evictionPolicy);
        public void Remove(string key) => _defaultCache.Remove(key);
        public void RemoveLocal(string key) => _defaultCache.RemoveLocal(key);
    }
}

Integration with MVC 5 dependency resolver

Templates developed on Episerver can set StructureMap to resolve dependencies in controllers in MVC 5. The following code provides an example of integrating StructureMap. This sample is used in the Alloy sample templates.

    [InitializableModule]
    [ModuleDependency(typeof(EPiServer.Web.InitializationModule))]
    public class DependencyResolverInitialization : IConfigurableModule
    {
        public void ConfigureContainer(ServiceConfigurationContext context)
        {
            DependencyResolver.SetResolver(new StructureMapDependencyResolver(context.Container));
        }
        public void Initialize(InitializationEngine context)
        {
        }
        public void Uninitialize(InitializationEngine context)
        {
        }
        public void Preload(string[] parameters)
        {
        }
    }
    public class StructureMapDependencyResolver : IDependencyResolver
    {
        readonly IContainer _container;
        public StructureMapDependencyResolver(IContainer container)
        {
            _container = container;
        }
        public object GetService(Type serviceType)
        {
            try
            {
                return _container.GetInstance(serviceType);
            }
            catch (StructureMapException)
            {
                return null;
            }
        }
        public IEnumerable<object> GetServices(Type serviceType)
        {
            return _container.GetAllInstances(serviceType).Cast<object>();
        }
    }