first commit

storage/kvhandler.go

@@ -0,0 +1,15 @@
+package storage
+
+import (
+	"github.com/spf13/viper"
+)
+
+type KVHandler interface {
+	Put(k string, v any) error
+	Get(k string) (any, error)
+	Delete(k string) error
+}
+
+func NewKVHandler(cfg *viper.Viper) (KVHandler, error) {
+	return NewRedisHandler(cfg)
+}

storage/redis.go

@@ -0,0 +1,43 @@
+package storage
+
+import (
+	"context"
+	"github.com/go-redis/redis/v9"
+	"github.com/spf13/viper"
+)
+
+type RedisHandler struct {
+	client *redis.Client
+}
+
+func NewRedisHandler(cfg *viper.Viper) (*RedisHandler, error) {
+	redisClient := redis.NewClient(&redis.Options{
+		Addr: cfg.GetString("storage.kv.redis.addr"),
+		DB:   cfg.GetInt("storage.kv.redis.db"),
+	})
+
+	_, err := redisClient.Ping(context.Background()).Result()
+	if err != nil {
+		return nil, err
+	}
+
+	return &RedisHandler{
+		client: redisClient,
+	}, nil
+}
+
+func (rh *RedisHandler) Put(k string, v any) error {
+	return rh.client.Set(context.Background(), k, v, 0).Err()
+}
+
+func (rh *RedisHandler) Get(k string) (any, error) {
+	value, err := rh.client.Get(context.Background(), k).Result()
+	if err != nil {
+		return nil, err
+	}
+	return value, nil
+}
+
+func (rh *RedisHandler) Delete(k string) error {
+	return rh.client.Del(context.Background(), k).Err()
+}