public static IApplicationBuilder UserGreetingFunctionType(this IApplicationBuilder app, Action <GreetingOptions> configurationOptions)
{
GreetingOptions options = new GreetingOptions();
configurationOptions(options);
return(app.UseMiddleware <GreetingMiddleware>(options));
}
public GreetingMiddleware(RequestDelegate next, GreetingOptions greetOption)
{
this.next = next;
this.greetOption = greetOption;
}