How Do I Return Jsonp From Web API?

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

What is the disadvantage of “Other Return Types” in Web API.


The main disadvantage of this approach is that you cannot directly return an error code like 404 error..

What are the types of Web API?

Multiple web APIs can be combined into a composite API – a collection of data or service APIs.🔗 Open APIs. Open APIs, also known as external or public APIs, are available to developers and other users with minimal restrictions. … 🔗 Internal APIs. … 🔗 Partner APIs. … 🔗 Composite APIs. … 🔗 REST. … 🔗 JSON-RPC and XML-RPC. … 🔗 SOAP.

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.

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 return an Excel file from Web API?

Export the Excel File in ASP.Net Web APIAdd the Model Class “Record. cs” in the model folder. In the “Solution Explorer”. Right-click on the “Model folder”. … In the “HomeController” write some code to export the Excel file. This Excel file exists: In the “Solution Explorer”. … Now write some HTML code in the “index. cshtml” file. This file exists:More items…•

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.

Is it true that ASP Net Web API has replaced WCF?

4) Is it right that ASP.NET Web API has replaced WCF? It’s a not at all true that ASP.NET Web API has replaced WCF. In fact, it is another way of building non-SOAP based services, i.e., plain XML or JSON string.

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.


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.

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

What is Web API return?

A Web API controller action can return any of the following: void. HttpResponseMessage. IHttpActionResult.

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.

Can we return view from Web API?

An API controller is a controller which provides a RESTful response. You cannot return a view from it. … A web API should return just information. An HTTP response about what the action should do.

How do I return a web API file?

Open Visual Studio and create New Web API project. Create Book folder at root level in the project. Add any sample pdf, word, excel, zip (name them as sample) files into it. Create a new API controller and Copy the content of EbookController from the downloaded project into it.

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…•

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.