Function createMiddleware

packages/sdks/express/index.ts:22–49

(options: OpenpanelOptions)

};

export default function createMiddleware(options: OpenpanelOptions) {
  return function middleware(req: Request, res: Response, next: NextFunction) {
    const sdk = new OpenPanel(options);
    const { ip } = getClientIpFromHeaders(req.headers);
    if (ip) {
      sdk.api.addHeader('openpanel-client-ip', ip);
    }
    if (req.headers['user-agent']) {
      sdk.api.addHeader('user-agent', req.headers['user-agent'] as string);
    }

    if (options.trackRequest?.(req.url)) {
      const profileId = options.getProfileId
        ? options.getProfileId(req)
        : undefined;
      sdk.track('request', {
        url: req.url,
        method: req.method,
        query: req.query,
        profileId,
      });
    }

    req.op = sdk;

    return next();
  };
}