Homey App listening to a port: EADDRNOTAVAIL

Developers
1

I get an error ‘EADDRNOTAVAIL’ when I try to listen to a port on homey. I tried all addresses of homey (ip4,ip6), but ended up always with the same result.

error message:------------------------------------------------------------------------------------------------------------------------------ Error: listen EADDRNOTAVAIL: address not available 10.0.0.111:1025 at Server.setupListenHandle [as _listen2] (node:net:1446:21) at listenInCluster (node:net:1511:12) at doListen (node:net:1660:7) at processTicksAndRejections (node:internal/process/task_queues:84:21) Emitted ‘error’ event on Server instance at: at emitErrorNT (node:net:1490:8)
at processTicksAndRejections (node:internal/process/task_queues:83:21) {
code: ‘EADDRNOTAVAIL’, errno: -99, syscall: ‘listen’, address: ‘10.0.0.111’, port: 1025}
coding: ---------------------------------------------------------------------------------------------------------------------------------------
const Homey = require(‘homey’);
const net = require(‘node:net’);

// installation of a TCP/IP Server
const server = net.createServer();

class MyApp extends Homey.App {
async onInit() { // homey starts it, when app initialized
this.log(‘App has been initialized’);
// server.on(‘connection’,(sock) => { … });

 **server.listen(1025, '10.0.0.111', () => {              //<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<**
      console.log('server bound',server.address());
  });// server ---- listen -------------------------------

} // ----------On Init Homey.app
}
module.exports = MyApp;

…

“platforms”: [ “local” ],
“category”: [ “tools” ],
“permissions”: ,
…

I posted it on GitHub but got no answer. Maybe somebody here has got an idea, what the reason is?

2

Unless Homey’s IP address is 10.0.0.111, you will get that error.

Any reason why you’re explicitly setting a host?

3

My homey has got this LAN-address plus a Wifi Address. Both create the error. Homey should act as the receiver of smtp messages as a server because the devices are only able to send smtp. There is no cloud necessary.

4

Are you running your app using homey app run or using homey app run --remote?

That doesn’t answer my question though: why are you explicitly setting a host? Not setting one will fix your issue, and it’s unrelated to cloud.

5

I use “homey app run”. I tried already a version without setting a host-ip, but no connection to the my homey was possible.

6

If you have a HP2023, that will run your app in a local Docker container (which would explain the error, since that container will not have the 10.0.0.111 address), not on your actual Homey.

7

Yes, that makes sense. Thank you for that hint. I am not familiar with docker containers. Is it possible to map to an external IP address?

8

You can try if you can access port 1025 of the machine you’re running Docker on, but I don’t know how the Homey command line tool sets up the container so it might not work.

If not, run the app directly on your Homey using homey app run --remote

9

Thanks a lot! You are great!!! I will test some things and I will come back hopefully with the solution. Take care!

10

Thanks again! “homey app run --remote” works perfect! :grinning: