diff --git a/src/dao/token.rs b/src/dao/token.rs
index 362df2f..00c6060 100644
--- a/src/dao/token.rs
+++ b/src/dao/token.rs
@@ -15,4 +15,7 @@ pub async fn update_token(conn: &PgPool, token_id: &i32, auth_token: String) ->
     WHERE id = $1 RETURNING *;"#)
         .bind(token_id).bind(auth_token).bind(Utc::now())
         .fetch_one(conn).await
-}
\ No newline at end of file
+}
+// TODO: add validate_user token (user_id, auth_token)
+// Update user token (refresh_token, user_id)
+// Delete user token (token_id)
\ No newline at end of file