Netlify-lambda serve works and build don't in production

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1

Hello guys, I’m able to check my code in development but when I push my code to production I receive Page Not Found

Looks like you’ve followed a broken link or entered a URL that doesn’t exist on this site.

I’ve been trying to solve this problem for 2 days without success…

Here’s my package:
“scripts”: {

    "build": "netlify-lambda build express",

    "start": "netlify-lambda serve express"

  },

Here is my express>server.js
require(‘dotenv’).config()

const ACCESS_TOKEN = process.env.CLIENT_ACCESS_TOKEN;

const APIAI_SESSION_ID = process.env.DEV_ACCESS_TOKEN;

const express = require('express');

const app = express();

const path = require('path');

const serverless = require('serverless-http');

const router = express.Router();

app.use('/', express.static(path.resolve('views'))); //html

app.use('/', express.static(path.resolve('public'))); // js, css, images

app.use('/', router);

app.use('/.netlify/functions/server', router);  // path must route to lambda

const server = app.listen(process.env.PORT || 5000, () => {

  console.log('Express server listening on port %d in %s mode', server.address().port, app.settings.env);

});

const apiai = require('apiai')(ACCESS_TOKEN);

//WEB UI

app.get('/', (req, res) => {

  res.sendFile('index.html');

});

const io = require('socket.io')(server, { serveClient: false });

io.on('connection', function (socket) {

  socket.on('chat message', (text) => {

    // Get a reply from API.AI

    let apiaiReq = apiai.textRequest(text, {

      sessionId: APIAI_SESSION_ID

    });

    apiaiReq.on('response', (response) => {

      let aiText = response.result.fulfillment.speech;

      socket.emit('bot reply', aiText); // Send the result back to the browser!

    });

    apiaiReq.on('error', (error) => {

      console.log(error);

    });

    apiaiReq.end();

  });

});

module.exports = app;

module.exports.handler = serverless(app);

netlify.toml

[build]

  command = "npm install && npm run build"

  functions = "functions"
2

Have you seen this article? It’s not normal to run express like that in a function that can only run for 10 seconds at a time, but it can work:

Normally your site would need to be pretty tightly integrated with that so you aren’t ONLY deploying functions with no files, though, so maybe I’m misunderstanding your use case and you could elaborate?