public async Task Invoke(
HttpContext context,
IGreetingService greetingService)
{
var message = greetingService.Greet("World (via DI)");
await context.Response.WriteAsync(message);
}
public Task Invoke(HttpContext httpContext)
{
string cacheKey = "GreetingMiddleware-Invoke";
string greeting;
// try to get the cached item; null if not found
// greeting = _memoryCache.Get(cacheKey) as string;
// alternately, TryGet returns true if the cache entry was found
if (!_memoryCache.TryGetValue(cacheKey, out greeting))
{
// fetch the value from the source
greeting = _greetingService.Greet("world");
// store in the cache
_memoryCache.Set(cacheKey, greeting,
new MemoryCacheEntryOptions()
.SetAbsoluteExpiration(TimeSpan.FromMinutes(1)));
_logger.LogInformation($"{cacheKey} updated from source.");
}
else
{
_logger.LogInformation($"{cacheKey} retrieved from cache.");
}
return(httpContext.Response.WriteAsync(greeting));
}
public async Task Invoke(HttpContext context, IGreetingService service)
{
var message = service.Greet(" user IGreetingService");
await context.Response.WriteAsync(message);
await this.next(context);
}
public override void Process(
TagHelperContext context,
TagHelperOutput output)
{
output.TagName = "p";
output.Content.SetContent(_greetingService.Greet(Name));
}
public string Greet(string userName)
{
logger.Info($"Attempting to greet user {userName}");
var result = innerService.Greet(userName);
logger.Info($"Successfully generated greeting to user {userName}");
return(result);
}
public async Task Invoke(HttpContext context, IGreetingService service)
{
//
//var service2 = context.RequestServices.GetService<IGreetingService>();
var message = service.Greet("World (via DI)");
await context.Response.WriteAsync(message);
}
public string Index(string name)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
string result = _greetingService.Greet(name);
return($"the answer from the service: {result}");
}
public void Configure(IApplicationBuilder app, IGreetingService greetingService)
{
var routeBuilder = new RouteBuilder(app);
routeBuilder.MapGet("{route}", context =>
{
var route = context.GetRouteValue("route").ToString();
return(context.Response.WriteAsync(greetingService.Greet(route)));
});
app.UseRouter(routeBuilder.Build());
}
public void OnActionExecuting(ActionExecutingContext context)
{
object param;
if (context.ActionArguments.TryGetValue("param", out param))
{
context.ActionArguments["param"] = param.ToString().ToUpper();
}
else
{
context.ActionArguments.Add("param", service.Greet("lilei"));
}
}
static void Main(string[] args)
{
IGreetingService service = DoubleCheckedLockingGreetingService.Instance;
IGreetingService service_2 = DoubleCheckedLockingGreetingService.Instance;
service.Greet("DoubleCheckedLocking");
service_2.Greet("DoubleCheckedLocking");
IGreetingService service_3 = LazyObjectGreetingService.Instance;
IGreetingService service_4 = LazyObjectGreetingService.Instance;
service_3.Greet("LazyObject");
service_4.Greet("LazyObject");
IGreetingService service_5 = SimpleGreetingService.Instance;
IGreetingService service_6 = SimpleGreetingService.Instance;
service_5.Greet("Simple");
service_6.Greet("Simple");
}
public IActionResult Greet()
{
ViewBag.Message = _greet.Greet();
return(View());
}
public string Hello(string name) => _greetingService.Greet(name);
public string Index([FromQuery] string name)
{
return(_greetingService.Greet(name));
}
public string Hello(string id) => _greetingService.Greet(id);
public string Hello(string name)
{
return(_greetingService.Greet(name));
}
public string Index(string name) => _greetingService.Greet(name);
public string Index(string name)
{
string result = _greetingService.Greet(name);
return(result.ToUpper());
}
public string Get(string name) => _greetingService.Greet(name);
public string GetGreeting()
{
return(service.Greet());
}
public void OnActionExecuting(ActionExecutingContext context)
{
context.ActionArguments["param"] = _greetingService.Greet("Dr. No");
}
public IActionResult Index()
{
ViewData["greeting"] = _greetingSvc.Greet();
return(View());
}
public void DoGreeting()
{
string name = _nameProvider.GetName();
_greetingService.Greet(name);
}
public string Index(string id)
{
return($"<h1>{_greetingService.Greet(id)}</h1>");
}