How do I return JSON from an action in FW/1?

Question

FW/1 seems to be oriented to returning complete web pages what if JSON data is needed? A typical layout looks like:

Answer 1

I have used code that overrides the onMissingView() method of Framework.cfc.

I wrap my response up in a variable named rc.json then use code similar to this in my Application.cfc.

function onMissingView( rc ){
    if( structKeyExists( rc, 'json' ){
        var response = getPageContext().getresponse()
        response.setContentType( 'application/json' );
        return serializeJSON( rc.json );
    }
    else{
        //we need this to fire off valid onMissignView error.
        raiseException( "FW1.viewNotFound", "Unable to find a view for '#request.action#' action.", " '#request.missingView#' does not exist.");
    }
}

I use other logic to do a cfdump of rc.json when request is not an AJAX request. But this is scaled down to bare minimum.