public static ApplicationBuilder <R> UseStartup <T>(params string[] args) where T : BaseStartup
{
var configurationBuilder = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json", optional: true)
.AddEnvironmentVariables(prefix: "PREFIX_")
.AddCommandLine(args);
ConstructorInfo ctor = typeof(T).GetConstructors().First();
ObjectActivator <T> createdActivator = GetActivator <T>(ctor);
//create an instance:
BaseStartup startup = createdActivator(configurationBuilder.Build());
return(new ApplicationBuilder <R>(startup));
}
private ApplicationBuilder(BaseStartup startup)
{
this.startup = startup;
}
