Telegram Adapter Now Available

Vercel's Chat SDK has expanded its multi-platform support to include Telegram, allowing developers to build bots that work seamlessly across five messaging platforms using a unified codebase. This addition maintains the SDK's philosophy of write-once, deploy-everywhere functionality.

Key Features

The Telegram adapter supports:

• Message interactions: Mentions, reactions, and direct messages
• Real-time feedback: Typing indicators
• Rich content: Text cards with buttons and link buttons that render as inline keyboard elements
• File handling: Single file uploads

Getting Started

Setting up a Telegram bot requires minimal configuration:

import { Chat } from "chat";
import { createTelegramAdapter } from "@chat-adapter/telegram";

const bot = new Chat({
  userName: "mybot",
  adapters: {
    telegram: createTelegramAdapter(),
  },
});

bot.onNewMention(async (thread, message) => {
  await thread.post(`You said: ${message.text}`);
});

Important Limitations

Developers should be aware of Telegram's platform constraints:

• Message history: Not exposed via full APIs; the adapter uses caching at the adapter level
• Callback data: Limited to 64 bytes
• Unsupported features: Modals and ephemeral messages are not currently available

For complete implementation details and best practices, see the official documentation.