SocketIO version in 2021:14360

General TouchDesigner Discussion
1

Hi

Is the SocketIO DAT in the current build still using v2.x version of SocketIO?

I’m not getting a connection to my server buts its made with 4.x

I don’t really need the features so could roll back if needed but want to make sure its that and not something else first.

2

Its 2.x and not camptaible with 3.x+

3

adding this for the benefit of those in the future - to get a socketIO DAT working (using a node.js server setup), you just need to add an arguement to your server declaration to force backward compatibility with socketio v2

full server code below, sending a message with dummy data to port 3001 (on localhost in this case)

const { Server } = require("socket.io");

let testObject = {
  name: "sensordata",
  numbers: {
      a: 0.5656456456,
      b: 0.4534534534,
      c: 0.3452352352,
      d: 0.2423423423,
      e: 0.2312412412
  }
}

const io = new Server(3001, {
  allowEIO3: true  // THIS IS WHAT YOU NEED TO ADD TO ENSURE TD COMPATIBILITY
});

io.on("connection", (socket) => {
  console.log("Received socket connection!");
  setTimeout(sendData, 16);
});

function sendData() {
  io.emit("tdstream", testObject);
  testObject.numbers.a += .0001;
  testObject.numbers.b += .0001;
  testObject.numbers.c += .0001;
  testObject.numbers.d += .0001;
  testObject.numbers.e += .0001;
  setTimeout(sendData, 16);
}

then just listen for an event called ‘tdstream’ in your socketIO dat by connecting a table dat with ‘tdstream’ as the only entry to the socketIO dat’s second input

1 Like