feat: msg local cache

pkg/common/cachekey/friend.go

@@ -0,0 +1,27 @@
+package cachekey
+
+import "time"
+
+const (
+	friendExpireTime    = time.Second * 60 * 60 * 12
+	friendIDsKey        = "FRIEND_IDS:"
+	twoWayFriendsIDsKey = "COMMON_FRIENDS_IDS:"
+	friendKey           = "FRIEND_INFO:"
+	isFriendKey         = "IS_FRIEND:"
+)
+
+func GetFriendIDsKey(ownerUserID string) string {
+	return friendIDsKey + ownerUserID
+}
+
+func GetTwoWayFriendsIDsKey(ownerUserID string) string {
+	return twoWayFriendsIDsKey + ownerUserID
+}
+
+func GetFriendKey(ownerUserID, friendUserID string) string {
+	return friendKey + ownerUserID + "-" + friendUserID
+}
+
+func GetIsFriendKey(possibleFriendUserID, userID string) string {
+	return isFriendKey + possibleFriendUserID + "-" + userID
+}