nextServer.ts

import next from "next";
import express from "express";
import { parse } from "url";
import logger from "@server/logger";
import config from "@server/lib/config";

const nextPort = config.getRawConfig().server.next_port;

export async function createNextServer() {
    //   const app = next({ dev });
    const app = next({ dev: process.env.ENVIRONMENT !== "prod" });
    const handle = app.getRequestHandler();

    await app.prepare();

    const nextServer = express();

    nextServer.all("*", (req, res) => {
        const parsedUrl = parse(req.url!, true);
        return handle(req, res, parsedUrl);
    });

    nextServer.listen(nextPort, (err?: any) => {
        if (err) throw err;
        logger.info(
            `Next.js server is running on http://localhost:${nextPort}`
        );
    });

    return nextServer;
}