在下一个js

Question

im试图在nextjs应用中设置自定义快递服务器以托管到Firebase。

./ server.js

const express = require('express');
const next = require('next');
const path = require('path');
const bodyParser = require('body-parser');
const product = require('./server/routes/product');
const productHover = require('./server/routes/product-hover');
const checkout = require('./server/routes/checkout');
const { https } = require('firebase-functions')

const dev = process.env.NODE_ENV !== 'production';

const app = next({ dir: '.', dev });
const handle = app.getRequestHandler();

app.prepare().then(() => {
    const server = express();
    // Static files
    // https://github.com/zeit/next.js/tree/4.2.3#user-content-static-file-serving-eg-images
    server.use('/images', express.static(path.join(__dirname, 'images'), {
        maxAge: dev ? '0' : '365d'
    }));

    server.use(bodyParser.json());

    /**
     * @route POST api/upload
     * @route POST api/upload-hover S
     * @desc Upload post image
     * @access public
     */
    server.use('/api/upload', product);
    server.use('/api/upload-hover', productHover);
    server.use('/api/checkout', checkout);

    server.get('*', (req, res) => {
        return handle(req, res)
    });

    const PORT = process.env.PORT || 3001;

    server.listen(PORT, (err) => {
        if (err) throw err
        console.log(`> Read on http://localhost:${PORT}`)
    });
})

在本地可以正常工作，因此请遵循有关以下内容的教程：

https://itnext.io/deploying-next-js-app-to-firebase-functions-eb473791d79e

https://medium.com/wesionary-team/deploying-next-js-application-on-firebase-platform-using-cloud-function-with-firebase-hosting-920157f03267

我确实尝试过：

const express = require('express');
const next = require('next');
const path = require('path');
const bodyParser = require('body-parser');
const product = require('./server/routes/product');
const productHover = require('./server/routes/product-hover');
const checkout = require('./server/routes/checkout');
const { https } = require('firebase-functions')

const dev = process.env.NODE_ENV !== 'production';

const app = next({ dir: '.', dev });
const handle = app.getRequestHandler();

exports.server = https.onRequest(async (req, res) => {
    return app.prepare().then(() => {
        const server = express();
        // Static files
        // https://github.com/zeit/next.js/tree/4.2.3#user-content-static-file-serving-eg-images
        server.use('/images', express.static(path.join(__dirname, 'images'), {
            maxAge: dev ? '0' : '365d'
        }));
    
        server.use(bodyParser.json());
    
        /**
         * @route POST api/upload
         * @route POST api/upload-hover S
         * @desc Upload post image
         * @access public
         */
        server.use('/api/upload', product);
        server.use('/api/upload-hover', productHover);
        server.use('/api/checkout', checkout);
    
        server.get('*', (req, res) => {
            return handle(req, res)
        });
    
        const PORT = process.env.PORT || 3001;
    
        server.listen(PORT, (err) => {
            if (err) throw err
            console.log(`> Read on http://localhost:${PORT}`)
        });
    })
})

但是响应是服务器无法处理请求，请有人可以帮助我！