Can't open peerSocket

[Jesperskate]

Hi All, 

I am trying to make an companion app that can send some commands, but I do not succeed making any connection. Here is my code to just make the first connection:

app/index.js:

// Import the messaging module
import * as messaging from "messaging";

// Check peerSocket values
console.log("app messaging.peerSocket.readyState: "+ messaging.peerSocket.readyState);
console.log("app messaging.peerSocket.OPEN: "+ messaging.peerSocket.OPEN);

// Request weather data from the companion
function fetchWeather() {
if (messaging.peerSocket.readyState === messaging.peerSocket.OPEN) {
// Send a command to the companion
messaging.peerSocket.send({
command: 'weather'
});
}
}

// Listen for the onopen event
messaging.peerSocket.onopen = function() {
// Fetch weather when the connection opens
fetchWeather();
}

// Listen for messages from the companion
messaging.peerSocket.onmessage = function(evt) {
if (evt.data) {
console.log("Data found: "+evt.data);

}
}

// Listen for the onerror event
messaging.peerSocket.onerror = function(err) {
// Handle any errors
console.log("Connection error: " + err.code + " - " + err.message);
}

// Fetch the weather every 30 minutes
setInterval(fetchWeather, 30 * 1000 * 60);

Companion/index.js

// Import the messaging module
import * as messaging from "messaging";

// Send the weather data to the device
function returnWeatherData(data) {
if (messaging.peerSocket.readyState === messaging.peerSocket.OPEN) {
// Send a command to the device
messaging.peerSocket.send("hello from companion");
} else {
console.log("Error: Connection is not open");
}
}

// Listen for messages from the device
messaging.peerSocket.onmessage = function(evt) {
if (evt.data && evt.data.command == "weather") {
// The device requested weather data
console.log("The device requested weather data");
}
}

// Listen for the onerror event
messaging.peerSocket.onerror = function(err) {
// Handle any errors
console.log("Connection error: " + err.code + " - " + err.message);
}

Console:

[11:55:42 AM]App Started

app/index.js:4,1[11:55:42 AM]app starts

app/index.js:5,1[11:55:42 AM]app messaging.peerSocket.readyState: 1

app/index.js:6,1[11:55:42 AM]app messaging.peerSocket.OPEN: 0

[HOST][11:55:42 AM]Launch complete - durations: foregrounding(942ms), first paint(24ms), total(969ms).

Build output:

This project is being built without a settings component. Create a file named settings/index.tsx, settings/index.ts, settings/index.jsx or settings/index.js to add a settings component to your project.

(It this required?)

 It's mystery to me, why the peerSocket doesn't open. I also have tried the BART example, Bluetooth is on, dev bridge is connected, I restarted the app, and also read the other two topics about this problem. The suggestions in these two topics doesnt help me, because I cant get peerSocket ready at all. 

I am looking forward to your replies!

Jesper

[JonFitbit]

Here's a minimal example, check it's working for you:

device/index.js

import * as messaging from "messaging";

messaging.peerSocket.onopen = function() {
  console.log(`Device OPEN`);
  sendMessage();
}

messaging.peerSocket.onerror = function(err) {
  console.log(`Device ERROR: ${err.code} ${err.message}`);
}

function sendMessage() {
  console.log(`Device SEND`);
  if (messaging.peerSocket.readyState === messaging.peerSocket.OPEN) {
    messaging.peerSocket.send({cmd: "ping!"});
  } else {
    console.log("Dude, where's my peerSocket?");
  }
}

companion/index.js

import * as messaging from "messaging";

messaging.peerSocket.onopen = function() {
  console.log(`Companion OPEN`);
}

messaging.peerSocket.onerror = function(err) {
  console.log(`Companion ERROR: ${err.code} ${err.message}`);
}

messaging.peerSocket.onmessage = function(evt) {
  console.log(`Companion MESSAGE: ${JSON.stringify(evt.data)}`);
}

[jimability]

Actually I have the same problem.

When connecting to the simulator, your minimal example works.

However, using my Versa 2, it no longer works. The onopen isn't even called.

[jimability]

Remark to my own post: I solved the issue. 'Solved', since I removed the dev apps, restarted my iPhone and reinstalled the app again. Then it works.

Something to look at for the fitibit devs! 😉