Microsoft.Extensions.DependencyInjection support for Hangfire

DependencyInjectionActivator.cs

using Microsoft.Extensions.DependencyInjection;
using Hangfire;
using System;

public class DependencyInjectionActivator
    : JobActivator
{
    readonly IServiceProvider _serviceProvider;

    public DependencyInjectionActivator(IServiceProvider serviceProvider)
    {
        if (serviceProvider == null)
            throw new ArgumentNullException(nameof(serviceProvider));

        _serviceProvider = serviceProvider;
    }

    public override JobActivatorScope BeginScope(JobActivatorContext context)
    {
        if (context == null)
            throw new ArgumentNullException(nameof(context));

        return new Scope(
            _serviceProvider.CreateScope()
        );
    }

    class Scope
        : JobActivatorScope
    {
        readonly IServiceScope _serviceScope;

        public Scope(IServiceScope serviceScope)
        {
            if (serviceScope == null)
                throw new ArgumentNullException(nameof(serviceScope));

            _serviceScope = serviceScope;
        }

        public override object Resolve(Type jobType) => _serviceScope.ServiceProvider.GetRequiredService(jobType);

        public override void DisposeScope() => _serviceScope.Dispose();
    }
}