How do I specify if I want JSON or XML in ASP.NET Web API?

Question

I\'ve written two ASP.NET Web API applications this week which both contain a single simple controller; I\'ve tweaked each to get them to work, include exceptions, and so on

Answer 1

It is defined by what the calling client (eg the browser or your .NET client) passes in the Accept header:

Accept: application/json, application/xml, text/json, text/xml

Will have a preference for JSON (if possible)

So your client that returns XML needs to set the Accept header to be the above or simply

Accept: application/json

should do the trick