fix: cache bug

src/dip/main.go

@@ -51,16 +51,16 @@ func (ip *IP) GetIPInfo(c echo.Context) (cached bool, err error) {
 		item, err := mc.Get(ip.IP)
 		if err != nil {
 			log.Println("error from cache", ip.IP, err)
-			return false, err
+			cached = false
+		} else {
+			cachedip := IP{}
+			err = json.Unmarshal(item.Value, &cachedip)
+			if err != nil {
+				log.Println(err)
+			}
+			*ip = cachedip
+			return true, nil
 		}
-		cachedip := IP{}
-		err = json.Unmarshal(item.Value, &cachedip)
-		if err != nil {
-			log.Println(err)
-			return false, err
-		}
-		*ip = cachedip
-		return true, nil
 	}
 
 	err = ip.CheckIPAddress()
@@ -82,12 +82,12 @@ func (ip *IP) GetIPInfo(c echo.Context) (cached bool, err error) {
 		log.Println(err)
 	}
 
-	if mcenabled {
+	if mcenabled && !cached {
 		go func() {
 			dt, err := json.Marshal(*ip)
 			err = mc.Set(&memcache.Item{Key: ip.IP, Value: dt, Expiration: cacheMaxTime})
 			if err != nil {
-				log.Println(err)
+				log.Println(err, "test")
 			}
 		}()
 	}