Use concrete Item rather than an interface. Removes unnecessary dupe structs

store/store.go

@@ -1,10 +1,14 @@
 package store
 
 type Store interface {
-	Get(string) (Item, error)
+	Get(string) (*Item, error)
 	Del(string) error
-	Put(Item) error
-	NewItem(string, []byte) Item
+	Put(*Item) error
+}
+
+type Item struct {
+	Key   string
+	Value []byte
 }
 
 type options struct{}
@@ -19,7 +23,7 @@ func NewStore(addrs []string, opt ...Option) Store {
 	return newConsulStore(addrs, opt...)
 }
 
-func Get(key string) (Item, error) {
+func Get(key string) (*Item, error) {
 	return DefaultStore.Get(key)
 }
 
@@ -27,10 +31,6 @@ func Del(key string) error {
 	return DefaultStore.Del(key)
 }
 
-func Put(item Item) error {
+func Put(item *Item) error {
 	return DefaultStore.Put(item)
 }
-
-func NewItem(key string, value []byte) Item {
-	return DefaultStore.NewItem(key, value)
-}