IServiceProvider in ASP.NET Core

Question

I starting to learn changes in ASP.NET 5(vNext) and cannot find how to get IServiceProvider, for example in \"Model\"\'s method

public class Entity 
{
     publ         


        

Answer 1

Do not use GetService()

The difference between GetService and GetRequiredService is related with exception.

GetService() returns null if a service does not exist. GetRequiredService() will throw exception.

public static class ServiceProviderServiceExtensions
{
    public static T GetService(this IServiceProvider provider)
    {
        return (T)provider.GetService(typeof(T));
    }

    public static T GetRequiredService(this IServiceProvider provider)
    {
        return (T)provider.GetRequiredService(typeof(T));
    }
}