How to properly configure fly.toml file for socket.io server

Questions / Help Build debugging
1

I am listening on port 3000 for http requests and 4000 for requests for socketio. The socketio request just hang though, never connecting.

Here is my fly.toml:

app = 'walk-visualization-backend'
primary_region = 'sjc'

[build]

[[services]]
  internal_port = 3000
  protocol = "tcp"

  [[services.ports]]
    handlers = ["http"]
    port = "80"

  [[services.ports]]
    handlers = ["tls", "http"]
    port = "443"

[[services]]
  internal_port = 4000
  protocol = "tcp"

  [[services.ports]]
    handlers = ["tls"]
    port = "443"

Here is my socket config as well:

import { Socket } from "socket.io";
import envConfig from "./envConfig.js";
import { corsOptions } from "./corsOptions.js";

import getFrameFromIndex from "../utils/getNextFrame.js";
import { walkData } from "../data/walkData.js";
import { terrainData } from "../data/terrainData.js";

function socketConfig() {
  const SOCKET_PORT = 4000;
  const { Server } = require("socket.io");
  const io = new Server({
    cors: {
      origin: corsOptions.origin
    }
  });


  io.on("connection", (socket: Socket) => {
    let intervalId: NodeJS.Timeout;
    console.log("user connected")

    socket.on("agent", (id) => {
      console.log("agent was selected!")
      clearInterval(intervalId)
      socket.emit("terrain", terrainData)
      let index = 0
      intervalId = setInterval(() => {
        socket.emit("frame", getFrameFromIndex(index))
        index+=1;
        if (index > walkData.length-1) {
          index = 0;
        }
      }, 20)
    })
    
    socket.on('disconnect', () => {
      clearInterval(intervalId);
      console.log("a user disconnected");
    })
  });

  io.listen(SOCKET_PORT);

}

export default socketConfig
2

Do you see anything odd in your ports?

3

yeah its fixed now haha