Yi.Admin/CC.Yi.API/Program.cs

using Autofac.Extensions.DependencyInjection;
using CC.Yi.DAL;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace CC.Yi.API
{
    public class Program
    {
        public static void Main(string[] args)
        {
            var host = CreateHostBuilder(args).Build();
            var scope = host.Services.CreateScope();
            {
                var services = scope.ServiceProvider;
                try
                {
                    var context = services.GetRequiredService<Model.DataContext>();
                    DbContentFactory.Initialize(context);
                }
                catch (Exception ex)
                {
                    var logger = services.GetRequiredService<ILogger<Program>>();
                    logger.LogError(ex, "An error occurred while seeding the database.");
                }
            }
            host.Run();
        }

        public static IHostBuilder CreateHostBuilder(string[] args) =>
            Host.CreateDefaultBuilder(args)
                .ConfigureWebHostDefaults(webBuilder =>
                {
                    webBuilder.UseStartup<Startup>();
                }).UseServiceProviderFactory(new AutofacServiceProviderFactory());
    }
}