chore: add store cache service

api/cache.go

@@ -0,0 +1,22 @@
+package api
+
+// CacheNamespace is the type of a cache.
+type CacheNamespace string
+
+const (
+	// UserCache is the cache type of users.
+	UserCache CacheNamespace = "u"
+	// MemoCache is the cache type of memos.
+	MemoCache CacheNamespace = "m"
+	// ShortcutCache is the cache type of shortcuts.
+	ShortcutCache CacheNamespace = "s"
+	// ResourceCache is the cache type of resources.
+	ResourceCache CacheNamespace = "r"
+)
+
+// CacheService is the service for caches.
+type CacheService interface {
+	FindCache(namespace CacheNamespace, id int, entry interface{}) (bool, error)
+	UpsertCache(namespace CacheNamespace, id int, entry interface{}) error
+	DeleteCache(namespace CacheNamespace, id int)
+}