1 files changed, 11 insertions, 4 deletions
diff --git a/finished-application/frontend/lib/withData.js b/finished-application/frontend/lib/withData.js
index 0256ba9..c5cce8d 100644
--- a/finished-application/frontend/lib/withData.js
+++ b/finished-application/frontend/lib/withData.js
@@ -1,11 +1,11 @@
 import withApollo from 'next-with-apollo';
 import ApolloClient from 'apollo-boost';
+import { endpoint, prodEndpoint } from '../config';
 import { LOCAL_STATE_QUERY } from '../components/Cart';
-import { endpoint } from '../config';
 
 function createClient({ headers }) {
   return new ApolloClient({
-    uri: process.env.NODE_ENV === 'development' ? endpoint : endpoint,
+    uri: process.env.NODE_ENV === 'development' ? endpoint : prodEndpoint,
     request: operation => {
       operation.setContext({
         fetchOptions: {
@@ -14,12 +14,19 @@ function createClient({ headers }) {
         headers,
       });
     },
+    // local data
     clientState: {
       resolvers: {
         Mutation: {
           toggleCart(_, variables, { cache }) {
-            const { cartOpen } = cache.readQuery({ query: LOCAL_STATE_QUERY });
-            const data = { data: { cartOpen: !cartOpen } };
+            // read the cartOpen value from the cache
+            const { cartOpen } = cache.readQuery({
+              query: LOCAL_STATE_QUERY,
+            });
+            // Write the cart State to the opposite
+            const data = {
+              data: { cartOpen: !cartOpen },
+            };
             cache.writeData(data);
             return data;
           },