Question: How Do I Return A Web API View?

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 Cors in Web API?

Cross-Origin Resource Sharing (CORS) is a mechanism that uses additional HTTP headers to tell browsers to give a web application running at one origin, access to selected resources from a different origin.

What is the Web API action method can have the following return types?

A Web API 2 action method return types can be any of the following : Void. HttpResponseMessage. IHttpActionResult.

How do I return a web API list?

Web API: How To Return List Of Custom Type (JSON)In the Templates pane, select Installed Templates and expand visual C# node and select web. In the list of project Templates, select ASP.NET Web Application and Click OK. … In the new ASP.NET Project dialog, select Web API and Click Ok.We got StudentApp (our Application Name) application with all needed files.

What are the return types of Web API?

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

How do I validate a Web API model?

Web API has Model Binding and Model Validation support. The techniques given below will be used for the validation….IsValid to validate the model.publicIHttpActionResultPost(Productproduct) {if (ModelState.IsValid) {//Dosomethingwiththeproduct(notshown).returnOk();} else {returnBadRequest();}}

What is difference between Web API and MVC?

Asp.Net MVC is used to create web applications that return both views and data but Asp.Net Web API is used to create full-blown HTTP services with an easy and simple way that returns only data, not view. Web API helps to build REST-ful services over the . … MVC only return data in JSON format using JsonResult.

Are MVC and Web API merged into one in MVC 6?

A prominent change in this release is the unification and combination of MVC, WEB API and Web Pages in a single programming framework called as MVC 6 which removes the overlap between the three frameworks. Also ASP.NET MVC 6 can now be self-hosted just like Web API 2 and SignalR.

Should I use ActionResult or IActionResult?

IActionResult is an interface, we can create a custom response as a return, when you use ActionResult you can return only predefined ones for returning a View or a resource. With IActionResult we can return a response, or error as well.

How do I return IHttpActionResult in Web API?

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. More often, you use the IHttpActionResult implementations defined in the System.

How do I return Jsonp from Web API?

Enable ASP.NET Web API to Return JSONP DataInstall the JSONP MediaTypeFormatter by entering the following command using NuGet Package Manager console in Visual Studio. … Add a FormatterConfig class in App_Start folder: … Add the following routes in /App_Start/RouteConfig.cs:More items…•

What is the default return type of Web API?

XML formatBy default Web API returns result in XML format.

What is the biggest disadvantage of other return types in Web API?

What is the disadvantage of “Other Return Types” in Web API? Ans. The main disadvantage of this approach is that you cannot directly return an error code like 404 error.

What is the difference between Web API and REST API?

While Web API in the time of Web 1.0 was synonymous with SOAP-based web services, today in Web 2.0, the term SOAP is edging towards REST-style web resources….Differences between REST and SOAP APIs.REST APISOAP APIMore secure since it boasts SSL and HTTPSIt only features SSL6 more rows•Sep 14, 2020

How do I return a status code in Web API core?

Quick Tip – Return HTTP Status Code from ASP.NET Core Methodsreturn Ok(); // Http status code 200.return Created(); // Http status code 201.return NoContent(); // Http status code 204.return BadRequest(); // Http status code 400.return Unauthorized(); // Http status code 401.return Forbid(); // Http status code 403.return NotFound(); // Http status code 404.

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…•


REST or RESTful API design (Representational State Transfer) is designed to take advantage of existing protocols. While REST can be used over nearly any protocol, it usually takes advantage of HTTP when used for Web APIs. … REST API Design was defined by Dr. Roy Fielding in his 2000 doctorate dissertation.

How do I get my HTTP status code back?

There’s also a catchall method, one that can return any HTTP status code: StatusCode(HttpStatusCode statusCode) : Returns the specified status code….Shortcut MethodsBadRequest() : Returns 400 – Bad Request.NotFound() : Returns 404 – Not Found.InternalServerError() : Returns 500 – Internal Server Error.