Function getClientHeaders

packages/sdks/nextjs/createNextRouteHandler.ts:14–43

(req: Request)

const SCRIPT_PATH = '/op1.js';

function getClientHeaders(req: Request): Headers {
  const headers = new Headers();
  const ip =
    req.headers.get('cf-connecting-ip') ??
    req.headers.get('x-forwarded-for')?.split(',')[0] ??
    req.headers.get('x-vercel-forwarded-for');

  headers.set('Content-Type', 'application/json');
  headers.set(
    'openpanel-client-id',
    req.headers.get('openpanel-client-id') ?? '',
  );

  // Construct origin: browsers send Origin header for POST requests and cross-origin requests,
  // but not for same-origin GET requests. Fallback to constructing from request URL.
  const origin =
    req.headers.get('origin') ??
    (() => {
      const url = new URL(req.url);
      return `${url.protocol}//${url.host}`;
    })();
  headers.set('origin', origin);

  headers.set('User-Agent', req.headers.get('user-agent') ?? '');
  if (ip) {
    headers.set('openpanel-client-ip', ip);
  }

  return headers;
}

async function handleApiRoute(
  req: Request,