Quick Answer: Should I Use ActionResult Or IActionResult?

What does IActionResult return?

IActionResult specifies how the server should respond to the request, such as writing data to the response or returning an error status code.

JsonResult serializes the object passed from the constructor and writes the serialized JSON data to the response and sets the MIME type to application/JSON ..

How do I return HttpResponseMessage in Web API?

Using HttpResponseMessage// GetEmployee action.public HttpResponseMessage GetEmployee(int id){Employee emp = EmployeeContext.Employees.Where(e => e.Id == id).FirstOrDefault();if (emp != null){return Request.CreateResponse(HttpStatusCode.OK, emp);}More items…•

What are the return types in Web API?

The Web API action method can have following return types.Void.Primitive Type/Complex Type.HttpResponseMessage.IHttpActionResult.

How do I value my IActionResult?

Get value from iactionresult Cast result into expected type and You need to await the call to GetConfiguration to get the IActionResult object back as follows: var actionResult = await controller. GetConfiguration(12); To do this you need to change the signature of your test method to be async as well.

How do I return a status code with Web API?

You can use the CreateErrorResponse extension method in your Web API controller method to return meaningful error codes and error messages. Note that the CreateErrorResponse method creates an HttpError object and then wraps it inside an HttpResponseMessage object.

What is AuthConfig Cs in MVC?

AuthConfig. cs – settings in this file allows you to login to ASP.NET MVC site using third party client credentials like fb account,google account,yahoo account etc..or you can register also.

Which ASP NET core no longer depends on the system?

Why ASP.NET Core? Supports Multiple Platforms: ASP.NET Core applications can run on Windows, Linux, and Mac. So you don’t need to build different apps for different platforms using different frameworks. Fast: ASP.NET Core no longer depends on System.

What is the difference between ApiController and controller?

Use Controller to render your normal views. ApiController action only return data that is serialized and sent to the client. Quote: … The first major difference you will notice is that actions on Web API controllers do not return views, they return data.

What is difference between IHttpActionResult and HttpResponseMessage?

IHttpActionResult contains a single method, ExecuteAsync, which asynchronously creates an HttpResponseMessage instance. If a controller action returns an IHttpActionResult, Web API calls the ExecuteAsync method to create an HttpResponseMessage. Then it converts the HttpResponseMessage into an HTTP response message.

What is .NET core used for?

NET Core is used to create server applications that run on Windows, Linux and Mac. It does not currently support creating desktop applications with a user interface. Developers can write applications and libraries in VB.NET, C# and F# in both runtimes.

What is return type in MVC?

ActionResult is a return type of a controller method in ASP.NET MVC. It help us to return models to views, other return value, and also redirect to another controller’s action method. There are many derived ActionResult types in MVC that we use to return the result of a controller method to the view.

What is the difference between IActionResult and ActionResult?

IActionResult is an interface and ActionResult is an implementation of that interface. ActionResults is an abstract class and action results like ViewResult, PartialViewResult, JsonResult, etc., derive from ActionResult. Let’s say you want to create an action result not catered to by MVC, say an XML result.

What is IActionResult in Web API?

IActionResult type. The IActionResult return type is appropriate when multiple ActionResult return types are possible in an action. The ActionResult types represent various HTTP status codes. Any non-abstract class deriving from ActionResult qualifies as a valid return type.

Why should I use IHttpActionResult instead of HttpResponseMessage?

In Web API 2, IHttpActionResult comes as a new feature which is basically the replacement of HttpResponseMessage. It creates a clean code and allows extensibility of the type of response that we create. Advantages of using the IHttpActionResult: It simplifies unit testing of controllers.

How do I return Jsonresult in Web API?

Let’s explore them:Change the default formatter for Accept: text/html to return JSON. … Change the default formatter for Accept: text/html to return JSON, and also return a valid Content-Type: application/json header. … Completely remove the XML formatter, forcing ASP.NET Web API to return JSON by default.

Is .NET core and ASP NET core same?

. NET Core is a runtime. It can execute applications that are built for it. ASP.NET Core is a collection of libraries that form a Framework for building web applications.

What is .NET core latest version?

Download .NET CoreVersionLatest releaseLatest release date.NET Core 2.22.2.82019-11-19.NET Core 2.02.0.92018-07-10.NET Core 1.11.1.132019-05-14.NET Core 1.01.0.162019-05-141 more row

What is ActionResult C#?

What is an ActionResult? An ActionResult is a return type of a controller method, also called an action method, and serves as the base class for *Result classes. Action methods return models to views, file streams, redirect to other controllers, or whatever is necessary for the task at hand.