Laravel 安卓 retrofit ｜发布自定义对象(将 json 发送到服务器)

我想知道如何使用改型将自定义对象发送到我的API，比如:

@POST(URL_ORDERS)
public void newOrder(Order order, Callback<Boolean> success);

下面是我在服务器上解析它的方法

public function store()
    {
    if(Auth::check()){
        $order = Input::get();
        $table = $order->table;
        $items = $order->items;

        if(!$table->taken){
            $table->taken = true;

            $order->push();
            $table->push();

            return true;
        }
    }

    return false;
}

因为某种原因我变得

06-04 20:45:59.275    6085-6306/com.tesis.restapp.restapp W/dalvikvm﹕ threadid=11: thread exiting with uncaught exception (group=0x40aae210)
06-04 20:45:59.285    6085-6306/com.tesis.restapp.restapp E/AndroidRuntime﹕ FATAL EXCEPTION: Retrofit-Idle
    java.lang.IllegalArgumentException: RestAppApiInterface.newOrder: No Retrofit annotation found. (parameter #1)
            at retrofit.RestMethodInfo.methodError(RestMethodInfo.java:120)
            at retrofit.RestMethodInfo.parameterError(RestMethodInfo.java:124)
            at retrofit.RestMethodInfo.parseParameters(RestMethodInfo.java:443)
            at retrofit.RestMethodInfo.init(RestMethodInfo.java:131)

我想我想要它做的是以某种方式将我的对象转换成json并发送到我的服务器.我这样做对吗？