INNER CODE UNIT · TypeScript

TelegramHandler

im4codes/imcodes · server/src/platform/handlers/telegram/index.ts:4

export class TelegramHandler implements PlatformHandler {
  getCapabilities(): PlatformCapabilities {
    return {
      maxMessageLength: 4096,
      supportsThreadedReplies: true,
      supportsMarkdown: true,
      supportsCodeBlocks: true,
      rateLimitPerMin: 30,
      requiredConfigKeys: ['botToken', 'webhookSecret'],
    };
  }

  async verifyInbound(req: Request, config: BotConfig): Promise<boolean> {
    const secret = req.headers.get('X-Telegram-Bot-Api-Secret-Token');
    const expected = config.config.webhookSecret;
    if (!secret || !expected) return false;

    // Timing-safe comparison

View source record →