diff --git a/get_by_key.go b/get_by_key.go
index cb1a943..9e50613 100644
--- a/get_by_key.go
+++ b/get_by_key.go
@@ -1,6 +1,9 @@
 package redisdb
 
-import "context"
+import (
+	"context"
+	"encoding/json"
+)
 
 // GetValueByKey ...
 func GetValueByKey(ctx context.Context, key string) string {
@@ -11,3 +14,15 @@ func GetValueByKey(ctx context.Context, key string) string {
 	value, _ := cmd.Result()
 	return value
 }
+
+// GetJSON ...
+func GetJSON(ctx context.Context, key string, result interface{}) (ok bool) {
+	v := GetValueByKey(ctx, key)
+	if v == "" {
+		return false
+	}
+	if err := json.Unmarshal([]byte(v), result); err != nil {
+		return false
+	}
+	return true
+}
diff --git a/set_key_value.go b/set_key_value.go
index 5713ba0..c13a3b3 100644
--- a/set_key_value.go
+++ b/set_key_value.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
+	"time"
 )
 
 // SetKeyValue ...
@@ -15,3 +16,13 @@ func SetKeyValue(ctx context.Context, key string, value interface{}) {
 	}
 	rdb.Set(ctx, key, b, 0)
 }
+
+// SetTTL ...
+func SetTTL(ctx context.Context, key string, value interface{}, d time.Duration) {
+	b, err := json.Marshal(value)
+	if err != nil {
+		fmt.Println("redisdb - SetTTL error", err.Error())
+		return
+	}
+	rdb.Set(ctx, key, b, d)
+}