Fixed linter errors

arn/ShopItem.go

@@ -21,6 +21,7 @@ const (
 
 // ShopItem is a purchasable item in the shop.
 type ShopItem struct {
+	ID          string `json:"id" primary:"true"`
 	Name        string `json:"name"`
 	Description string `json:"description"`
 	Price       uint   `json:"price"`
@@ -28,8 +29,11 @@ type ShopItem struct {
 	Rarity      string `json:"rarity"`
 	Order       int    `json:"order"`
 	Consumable  bool   `json:"consumable"`
+}
 
-	hasID
+// GetID returns the ID.
+func (item *ShopItem) GetID() string {
+	return item.ID
 }
 
 // GetShopItem ...

arn/User.go

@@ -175,11 +175,11 @@ func (user *User) SendNotification(pushNotification *PushNotification) {
 	expired := []*PushSubscription{}
 
 	for _, sub := range subs.Items {
-		resp, err := sub.SendNotification(pushNotification)
+		response, err := sub.SendNotification(pushNotification)
 
-		if resp != nil && resp.StatusCode == http.StatusGone {
+		// It is possible to receive a non-nil response with an error, so check the status.
+		if response != nil && response.StatusCode == http.StatusGone {
 			expired = append(expired, sub)
-			continue
 		}
 
 		// Print errors
@@ -188,10 +188,13 @@ func (user *User) SendNotification(pushNotification *PushNotification) {
 			continue
 		}
 
+		// Response body must be closed if no error was returned
+		defer response.Body.Close()
+
 		// Print bad status codes
-		if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusCreated {
-			body, _ := ioutil.ReadAll(resp.Body)
-			fmt.Println(resp.StatusCode, string(body))
+		if response.StatusCode != http.StatusOK && response.StatusCode != http.StatusCreated {
+			body, _ := ioutil.ReadAll(response.Body)
+			fmt.Println(response.StatusCode, string(body))
 			continue
 		}