pagination

Multi-page inline keyboard for browsing a list. No server-side session required — page state is encoded in callback data.

What it shows

OnCommand("/list") sends the first page with inline navigation buttons
OnCallback("^page:(\\d+)$") parses page number from callback data via c.Values["regex_match"]
api.EditMessageText edits the message in-place on each page turn
api.AnswerCallbackQuery dismisses the loading spinner

Pattern

Callback data format: page:<n> where n is the 0-based page index.

The renderPage helper builds both the text content and the keyboard in one call. Only [« Prev] or [Next »] buttons that make sense for the current page are rendered, so the keyboard is always minimal.

Running

export TELEGRAM_BOT_TOKEN=123456:ABC...
go run ./examples/pagination

Send /list to the bot. Tap Next/Prev to navigate 20 sample items, 5 per page.

Extending

To paginate dynamic data (database results, API responses), replace sampleItems with a function that takes (page, pageSize) and returns items + total count.