diff --git a/pkg/db/kv/addInDB.go b/pkg/db/kv/addInDB.go
new file mode 100644
index 0000000..44ea19c
--- /dev/null
+++ b/pkg/db/kv/addInDB.go
@@ -0,0 +1,11 @@
+package kv
+
+import (
+	"github.com/dgraph-io/badger/v4"
+)
+
+func AddInDB(db *badger.DB, key string, value string) error {
+	return db.Update(func(txn *badger.Txn) error {
+		return txn.Set([]byte(key), []byte(value))
+	})
+}
diff --git a/pkg/db/kv/deleteInDB.go b/pkg/db/kv/deleteInDB.go
new file mode 100644
index 0000000..fe8398e
--- /dev/null
+++ b/pkg/db/kv/deleteInDB.go
@@ -0,0 +1,11 @@
+package kv
+
+import (
+	"github.com/dgraph-io/badger/v4"
+)
+
+func DeleteInDB(db *badger.DB, key string) error {
+	return db.Update(func(txn *badger.Txn) error {
+		return txn.Delete([]byte(key))
+	})
+}