public static IWebHost BuildWebHost(string[] args)
{
var host = WebHost.CreateDefaultBuilder(args)
.UseConfiguration(new ConfigurationBuilder()
.AddCommandLine(args)
.Build())
.UseStartup <Startup>()
.Build();
using var scope = host.Services.CreateScope();
var services = scope.ServiceProvider;
var context = services.GetRequiredService <MandoContext>();
DemoData.Seed(services);
return(host);
}