Question

I have the following mapping in my URLMappings

addPurchase:"/addPurchase" {
            controller = "cart"
            action = "addPurchase"
        }

I make an AJAX call from my GSP

function addPurchase(purchaseJSON, amount) {
            $.ajax({
                url: 'addPurchase',
                data: {
                    purchase: purchaseJSON
//                    quantity: amount
                },
                type : "POST",
                complete:function(data) {
                    updateCart();
                    updateOrderSummary(data);
                }
            });
        }

My controller code is

def addPurchase = {

      def result = cartService.addPurchase(session,params)

      log.debug"Results from addPurchase" + result
      response.status = 200
      return result as JSON

    }

Eventhough I see the output in my console, I get an error 404 in my browser. Why is it happening ? My version of grails is @ 1.3.7

Answer 1

You’re actually returning a result whereas the required response is a ‘text/html’ or ‘text/json’

So in your controller you should render the result instead of returning it; like :

def addPurchase = {
    def result = cartService.addPurchase(session,params)
    log.debug"Results from addPurchase" + result
    response.status = 200
    render result as JSON
}