Hi. I'm trying to put Node-red and Grafana behind a reverse proxy with nodejs express and http-proxy-middleware. My situation: I have a 4G router that sits between a linux machine running Node-red and Grafana and the WAN net. I portforward :8080 -> LAN_IP:9000. Grafana listens on: 3000. http No…

Couple of things. You need to tell Node-RED to trust your proxy. You need to proxy websockets not just HTTP for Node-RED. Not sure why you would try to use a Node.js/ExpressJS tool for the proxy? Using something like NGINX, Caddy or HAProxy would be far more efficient and would let you do other th…

[image] peterda: Traefik Seems a bit heavier to run as it prefers a containerised install (e.g. Docker) ? The advantage of the others is that they easily install on bare metal and are configured via simple config files. I can see that Traefik might be better though if you had a server just r…

My instance of Traefik runs in Docker without any problems, as it has for several years now.

[image] peterda: Traefik runs in Docker Not everyone wants or needs the overheads of Docker. :wink:

Thanks for your answers. I use nodejs for most of my use cases, so I want to continue using it, except if there is an advices against it, or if it isn't possible using nodejs. I have failed to find resources on how to tell Node-red to trust my proxy. I didn't even know that Node-red would be the…

[image] stgj: I have failed to find resources on how to tell Node-red to trust my proxy. I didn't even know that Node-red would be the wiser. In settings.js /** If you need to set an http proxy to reach out, please set an environment variable * called http_proxy (or HTTP_PROXY) out…

Some update: Ended up using the http-proxy npm package. Which is the package that http-proxy-middleware wraps around. As mentioned by TotallyInformation you need to tell Node-red to trust the proxy. In the settings.js file of the Node-red: httpServerOptions: { trustProxy: true }, And in my…

[image] stgj: And of course, depending on how you want to do it make sure that your proxy.js file fires at boot. I typically use systemd. I assume that you have adjusted Node-RED's systemd script to wait for your proxy? And set your proxy to wait on the network? systemd is good for ensuring …

I haven’t had the chance to make the systemd service yet. I tell all network-dependent applications to wait for network. I hadn’t considered your first point, but I’ll look into it. Thanks for bringing it up! Best regards Steffen

Node-red behind reverse proxy with http-proxy-middleware

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peterda 12 July 2025 08:34 3

In my setup i use Traefik for this.
Easy to setup, lightweight and with good and extensive documentation.
It does acme (certificates) with let’s encrypt on the fly.

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Node-red behind reverse proxy with http-proxy-middleware

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