Configuring a Telegram Bot Menu Button

Set the lower-left menu button to open a Web App:

import { Bot } from "https://deno.land/x/grammy@v1.25.0/mod.ts";

const bot = new Bot('BOT_TOKEN');

await bot.api.setChatMenuButton({
  menu_button: {
    type: 'web_app',
    text: 'Open Web App',
    web_app: { url: 'https://example.com' }
  }
});

bot.start();

Alternatively, publish bot commands:

await bot.api.setMyCommands([
  { command: 'one', description: 'First action' },
  { command: 'two', description: 'Second action' },
  { command: 'three', description: 'Third action' },
]);

console.log(await bot.api.getMyCommands());

Changes may not appear immediately because Telegram clients cache menu configuration.