def METHOD_NAME(request, domain):
    """
    You must specify an app_id, and you may specify either 'version' or 'latest'
    latest can be one of:
        release: Latest starred version
        build: Latest version regardless of star
        save: Latest saved version of the application (even without a build)
    If 'version' and 'latest' aren't specified it will default to latest save
    You may also set 'include_multimedia=true' if you need multimedia.
    """
    def error(msg, code=400):
        return JsonResponse({'status': 'error', 'message': msg}, status=code)
    def get_app(app_id, version, latest):
        if version:
            return get_build_doc_by_version(domain, app_id, version)
        elif latest == 'build':
            return get_latest_build_doc(domain, app_id)
        elif latest == 'release':
            return get_latest_released_app_doc(domain, app_id)
        else:
            # either latest=='save' or they didn't specify
            return get_current_app(domain, app_id)
    app_id = request.GET.get('app_id', None)
    version = request.GET.get('version', None)
    latest = request.GET.get('latest', None)
    include_multimedia = request.GET.get('include_multimedia', 'false').lower() == 'true'
    # Make sure URL params make sense
    if not app_id:
        return error("You must specify `app_id` in your GET parameters")
    if version and latest:
        return error("You can't specify both 'version' and 'latest'")
    if latest not in (None, 'release', 'build', 'save',):
        return error("latest must be either 'release', 'build', or 'save'")
    if version:
        try:
            version = int(version)
        except ValueError:
            return error("'version' must be an integer")
    try:
        app = get_app(app_id, version, latest)
        if not app:
            raise ResourceNotFound()
        app = app if isinstance(app, Document) else wrap_app(app)
    except (ResourceNotFound, DocTypeError):
        return error("Application not found", code=404)
    lang, langs = get_langs(request, app)
    with report_build_time(domain, app._id, 'live_preview'):
        return get_direct_ccz(domain, app, langs, version, include_multimedia)