It assumes you're returning a certain model that might be transformed. In this article, the subsequent course is inherited in the ActionFilterAttribute and overrides the OnActionExecuted technique.
Initialization of Stopwatch: A Stopwatch is instantiated and commenced to evaluate some time taken to execute the motion consequence. This is beneficial for overall performance monitoring.
Exception Filters are applied to handle any unhandled exceptions that arise inside our application. They do not have in advance of or following procedures. They only put into action the OnException() process. This method is going to be referred to as When an unhandled exception takes place inside our software.
It isn't really reinventing the wheel. Many of the extensions have now been suggested. You might rewrite your logic as follows.
be reused beyond the request scope it absolutely was made in. The ASP.Web Core runtime does not warranty: That one instance in the filter will probably be established.
For testing functions, let’s believe which the hypothetical user often has just the Examine authorization and no Write permission. Once the consumer will not be licensed, we can easily set the Result home on the HTTP Context as UnauthorizedResult that may shorter circuit the execution pipeline.
Making use of encryption tactics in both of those transit and at rest will Guantee that all of the sensitive data stays safeguarded and private.
The OnActionExecuting approach operates prior to the motion method, so it may manipulate the inputs to your motion by altering ActionExecutingContext.ActionArguments or manipulate the controller via ActionExecutingContext.Controller. An OnActionExecuting system can shorter-circuit execution from the action approach and subsequent action filters by placing ActionExecutingContext.
End result filters are only executed when an motion or motion filter makes an action final result. Outcome filters are not executed when:
Create a class file named CustomValidationFilter.cs within the Designs folder, after which duplicate and paste the following code. This filter performs custom validation of motion parameters.
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ActionExecutedContext.Exception is going to be established to some non-null price if the action or maybe a subsequent motion filter threw an exception. Placing ActionExecutedContext.Exception to null successfully ‘handles’ an exception, and ActionExectedContext.End result will then be executed like it ended up returned in the action strategy normally.
OnActionExecutionAsync runs ahead of any of the action's filters. Code after a simply call to subsequent runs following the action's filters.
You may make your custom made filters or attributes either by employing the ASP.Web MVC filter interface or by inheriting and overriding methods of the ASP.NET MVC filter attribute course if out there.