feat: add util redis

Author: nk-akun

util/redis.go

@@ -0,0 +1,25 @@
+package util
+
+import "github.com/go-redis/redis"
+
+var rdb *redis.Client
+
+// OpenRedis create a connection of redis
+func OpenRedis() error {
+	rdb = redis.NewClient(&redis.Options{
+		Addr:     "localhost:6379",
+		Password: "", // no password set
+		DB:       0,  // use default DB
+	})
+
+	_, err := rdb.Ping().Result()
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// GetRedis return the pointer of db
+func GetRedis() *redis.Client {
+	return rdb
+}