yiminghe / next-compose-middlewares / 11857244958

import { NextRequest, NextResponse } from 'next/server';

import {

  FORWARDED_URI_HEADER,

  NEXT_BASE_PATH_HEADER,

  NEXT_URL_HEADER,

} from './constants';

/**

 * nextjs middleware

 *@public

 */

export async function middleware(req: NextRequest) {

  const { nextUrl } = req;

  const requestHeaders = new Headers(req.headers);

  requestHeaders.set(NEXT_URL_HEADER, nextUrl.toString());

  requestHeaders.set(NEXT_BASE_PATH_HEADER, nextUrl.basePath);

  if (!req.headers.get(FORWARDED_URI_HEADER)) {

    requestHeaders.set(

      FORWARDED_URI_HEADER,

      nextUrl.basePath + nextUrl.pathname + nextUrl.search,

    );

  }

  return NextResponse.next({

    request: {

      headers: requestHeaders,

    },

  });

}