[doc]:How to add custom route on express level - upward proxy

[mercs600]

Describe the request
Hi, I would like to create custom endpoint on express server for robots.txt file - solution from venia it doesn't fit for us, because this is one static file and I need multiple configuration of robots per environment.
Generally I have stuck. There is no problem to express config, but what should I setup in upward.yml to allow connect to node server directly ?

My server.js with upward config

 const upwardServerOptions = Object.assign(
        // defaults
        {
            bindLocal: true,
            logUrl: true
        },
        config.section('upwardJs'),
        stagingServerSettings, // overrides upward options
        {
            env: process.env,
            before(app) {
                addImgOptMiddleware(app, {
                    ...config.section('imageOptimizing'),
                    ...config.section('imageService')
                });
                app.use(bestPractices());
                app.get('/robots.txt', function(req, res) {
                    res.sendStatus(200);
                    res.send('Test')
                });
            }
        }
    );

[m2-assistant]

Hi @mercs600. Thank you for your report.
To help us process this issue please make sure that you provided sufficient information.

Please, add a comment to assign the issue: @magento I am working on this

---

• Join Magento Community Engineering Slack and ask your questions in #github channel.

[jcalcaben]

@mercs600
you may get the answer you need by posting this question in our community slack channel:

https://magentocommeng.slack.com/archives/C71HNKYS2

[TheRealHunzik]

Hello There @mercs600 & @jcalcaben

do you have found any solution for this?