Returning an image from a RESTful WCF service

I have this very simple DTO:

public class DTO
    public byte[] Image {get; set; }

And this very simple service:

public interface IFooService
        UriTemplate = "", 
        RequestFormat = WebMessageFormat.Json, 
        ResponseFormat = WebMessageFormat.Json)]
    List<DTO> GetDTOs();

In my global.asax, I have:

RouteTable.Routes.Add(new ServiceRoute("foo", 
    new WebServiceHostFactory(), typeof(FooService)));

Now, when I call this from my browser, I am getting an array of bytes in JSON format. Good so far. Now, how do I turn that array of bytes into an image?

Or, is there a better way of going about this? I tried changing byte[] to Stream, but then when I call the service from Firefox, the response is empty despite an HTTP status code of 200. I am using Firebug and Fiddler.

I don't think it's relevant, but since too much information never hurt anybody who wasn't a robot, here's the web.config:

<?xml version="1.0"?>
                    <serviceMetadata httpGetEnabled="true"/>
                    <serviceDebug includeExceptionDetailInFaults="false"/>
        <serviceHostingEnvironment multipleSiteBindingsEnabled="true" aspNetCompatibilityEnabled="true" />
        <modules runAllManagedModulesForAllRequests="true">
            <add name="UrlRoutingModule" type="System.Web.Routing.UrlRoutingModule, System.Web, Version=, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
        <compilation debug="true" targetFramework="4.0" />

Ultimately, I guess the question is: how do you return a bitmap from a WCF RESTful service so JavaScript running in the browser can throw it up on the screen?


Here's an article with sourcecode on doing exactly what you want!

Hope this helps

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