Change default JSON Serializer

Question

ASP.NET default json serializer is slow, and I need a lot of performance, so I want to use ServiceStack.Text Serializer , is there a way I can use that serializer instead of the one by default?

If I send a JSON request to my ASMX file, and return an object it will serialize it using Microsoft's slow implementation.

I guess I could always return a string, and serialize manually, but I just want to know if it's possible.

Answer 1

Check out this link: http://msdn.microsoft.com/library/bb763183%28v=vs.100%29.aspx

Basically you need to put your custom converter in configuration tag on web.config:

<configuration>
  <system.web.extensions>
    <scripting>
      <webServices>
        <jsonSerialization maxJsonLength="50">
          <converters>
            <add name="MyCustomConverter" 
              type="MyCompany.ConvertersNameSpace.MyTypeConverter"/>
          </converters>
        </jsonSerialization>
      </webServices>
    </scripting>
  </system.web.extensions>
</configuration>

Since JavascriptSerializer needs to inform which classes are supported, i think asp.net will assume your serializer instead of default serializer.