16

I have a Web API project that returns some product data. It negotiates the return type correctly depending on the Accept header (JSON/XML) of the request. The problem is, if no Accept header is specified it returns JSON, but I want it to return XML by default. How do I change the content negotiation defaults in Global.asax?

1 Answer 1

32

Found a solution via http://www.strathweb.com/2013/06/supporting-only-json-in-asp-net-web-api-the-right-way/

Added this in WebApiConfig.Register():

config.Formatters.Clear();
config.Formatters.Add(new XmlMediaTypeFormatter());
config.Formatters.Add(new JsonMediaTypeFormatter());
config.Formatters.Add(new FormUrlEncodedMediaTypeFormatter());

So default is XML, the first formatter, but the API still supports JSON if the request asks for it.

Sign up to request clarification or add additional context in comments.

3 Comments

Also add FormUrlEncodedMediaTypeFormatter in your above code as by default Web API has that formatter too in the collection
what this FormUrlEncodedMediaTypeFormatter does?? I see that returns nothing!
@Sunny it should return URL formatted values (msdn.microsoft.com/en-us/library/…) like myVariable=1&myOtherVariable=test

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.