Fixed caching

vk/handlers.go

@@ -1,7 +1,6 @@
 package vk
 
 import (
-	"encoding/json"
 	"errors"
 	"log"
 	"net/http"
@@ -42,35 +41,29 @@ func handleSearch(req *MessageRequest) {
 		Message(req.Object.UserId, "Карта не найдена")
 		log.Printf("[info] Could not find card. User input: %s", req.Object.Body)
 	} else {
-		prices, err := GetPrices(cardName)
+		message, err := GetMessage(cardName)
 		if err != nil {
 			Message(req.Object.UserId, "Цены временно недоступны, попробуйте позже")
 			log.Printf("[error] Could not find SCG prices. Message: %s card name: %s", err.Error(), cardName)
 			return
 		}
-		priceInfo := cardsinfo.FormatCardPrices(cardName, prices)
-		Message(req.Object.UserId, priceInfo)
+		Message(req.Object.UserId, message)
 	}
 }
 
-func GetPrices(cardName string) ([]cardsinfo.CardPrice, error) {
+func GetMessage(cardName string) (string, error) {
 	client := caching.GetClient()
 	val, err := client.Get(cardName)
-	var prices []cardsinfo.CardPrice
 	if err != nil {
-		prices, err = cardsinfo.GetPrices(cardName)
+		prices, err := cardsinfo.GetPrices(cardName)
 		if err != nil {
-			return nil, err
+			return "", err
 		}
-		serialized, err := json.Marshal(prices)
-		if err != nil {
-			return nil, err
-		}
-		client.Set(cardName, string(serialized))
-		return prices, nil
+		message := cardsinfo.FormatCardPrices(cardName, prices)
+		client.Set(cardName, message)
+		return message, nil
 	}
-	_ = json.Unmarshal([]byte(val), &prices)
-	return prices, nil
+	return val, nil
 }
 
 func getCardNameByCommand(command string) (string, error) {