asp.net - What kind of datatypes should I use for the return value of a Web API method? -

I have a web API controller that gives data to my clients the code looks like this:

  [http gate] [action name ("retrieve")] public inenemable & lt; Reference & gt; Recover (intisID) {returns _referseva Retrieve (Topic ID); }   
 Can anyone tell me that it is necessary to specify ActionName?  
 In addition, should I return an IEEEMERABLE, an ILIT or something else?   
 
 
 I assume that your ASP.NET routing setup is correct, you  ActionName  
  secure void Application_Start () {RouteTable.Routes MapHttpRoute ("0", "{controller} / {action} / {arg1} "); }   
 match        
 Whatever you return, Fully based on your MediaType formatter, the default of which is  XmlFormatter  and  JsonFormatter . These can be found in the  global configuration. Configuration. Formats will be selected on the basis of  and the client provided by the  accepted  header.  
 We, for example, use our feedback for formatting, configured by:  
  secure void Application_Start () {RouteTable.Routes.MapHttpRoute ("0" , "{Controller} / {action} / {arg1}"); MediaTypeFormatterCollection Formats = Global Configuration. Configuration. Formats; Formatters.Remove (formatters.XmlFormatter); Var jsonFormatter = Global Configuration. Configuration. Formats. Jason Format Serializer settings; JsonFormatter.Formatting = formatting. Indented; JsonFormatter.ContractResolver = New CamelCasePropertyNamesContractResolver (); }   
 This tells WebApi to reject any XML formatting and returns JSON only using JSON.Net contract resolver. JSON.Net supports serialing  IEnumerable .  
 However, I would recommend returning a  HttpResponseMessage  instead. It also allows you to set the status code (it still uses the media type formatter, it's just a clean cover). You can use it like this:  
  [HTTPGet] Recover Public HTTPPPS Passage (IntecId) {var reaction _referseva. Retrieve (topic id); Return request. Create Response (HTTPTas Code. OK, Feedback); }