Added different formatting for telegram bot

internal/caching/cache.go

@@ -1,9 +1,12 @@
 package caching
 
 import (
+	"encoding/json"
 	"time"
 
 	"github.com/go-redis/redis"
+	"github.com/pkg/errors"
+	"gitlab.com/flygrounder/go-mtg-vk/internal/cardsinfo"
 )
 
 type CacheClient struct {
@@ -22,10 +25,17 @@ func NewClient(addr string, passwd string, expiration time.Duration, db int) *Ca
 	}
 }
 
-func (client *CacheClient) Set(key string, value string) {
+func (client *CacheClient) Set(key string, prices []cardsinfo.ScgCardPrice) {
+	value, _ := json.Marshal(prices)
 	client.Storage.Set(key, value, client.Expiration)
 }
 
-func (client *CacheClient) Get(key string) (string, error) {
-	return client.Storage.Get(key).Result()
+func (client *CacheClient) Get(key string) ([]cardsinfo.ScgCardPrice, error) {
+	c, err := client.Storage.Get(key).Result()
+	if err != nil {
+		return nil, errors.Wrap(err, "No such key in cache")
+	}
+	var prices []cardsinfo.ScgCardPrice
+	json.Unmarshal([]byte(c), &prices)
+	return prices, nil
 }