What is the correct way to use getUpdates?

Question

Telegram

How can I use the getUpdates method so that it only returns unread messages?
Like now:
{"ok": true, "result": [{...},{...}, {...}, {...}, {...}, {...} , {...}, {...}]}
(All messages read and unread here)
As I want:
{"ok": true, "result": [{...}, {...} ]}
(These two messages have not yet been read)

Answer 1

Read messages sequentially and use the offset parameter