Error 200 on Websocket - Githubissues

hypo-thesis commented 4 years ago

I am getting

reconnecting-websocket-mjs.js:518 WebSocket connection to 'wss://ws.finnhub.io/?token=mytoken' failed: Error during WebSocket handshake: Unexpected response code: 200 on my code

const socket = new WebSocket('wss://ws.finnhub.io?token=mytoken');

// Connection opened -> Subscribe
socket.addEventListener('open', function (event) {
    socket.send(JSON.stringify({'type':'subscribe', 'symbol': 'AAPL'}))
    socket.send(JSON.stringify({'type':'subscribe', 'symbol': 'BINANCE:BTCUSDT'}))
    socket.send(JSON.stringify({'type':'subscribe', 'symbol': 'IC MARKETS:1'}))
});

// Listen for messages
socket.addEventListener('message', function (event) {
    console.log('Message from server ', event.data);
});

for the past 2 hours and I wonder if there is a problem with my code or the server. How to avoid this?

suchislife801 commented 4 years ago

Your problem if that's really your error log is that you didn't change the wss://ws.finnhub.io/?token=mytoken to your own unique token. You get this token from first, subscribing to the site.

The button to get a free one is literally on the front page of finnhub.io AKA Get Free API key

Here is a working example for ya. Hope this helps. Just uncomment the streams you wanna subscribe to.

<!DOCTYPE html>
<html>
<head>
  <title></title>
  <style type="text/css">

    body {

      background-color: #121212;
    }

  </style>
</head>
<body>

<script type="text/javascript">

  const socket = new WebSocket('wss://ws.finnhub.io?token=API_TOKEN');

  console.info('1. New websocket created.');

  // Connection opened -> Subscribe
  socket.addEventListener('open', function (event) {
    socket.send(JSON.stringify({'type':'subscribe', 'symbol': 'AAPL'}))
    // socket.send(JSON.stringify({'type':'subscribe-news', 'symbol': 'AAPL'}))
    // socket.send(JSON.stringify({'type':'subscribe', 'symbol': 'BINANCE:BTCUSDT'}))
    // socket.send(JSON.stringify({'type':'subscribe', 'symbol': 'IC MARKETS:1'}))
    console.info('2. Subscribing to symbols...');

  });

  // Listen for messages from the websocket stream...
  socket.addEventListener('message', function (event) {

    console.clear();
    console.info('1. New websocket created.');
    console.info('2. Subscribing to symbols...');
    console.info('3. Websocket streaming.');

    // stream response...
    let response = JSON.parse(event.data);

    // Determine response type.
    switch(response.type) {
      // Just a Websocket server ping.
      case 'ping':
        // ping.
        console.warn('Occasional server', response.type + '.');
        break;
      case 'trade':
        // type = trade. Obtain nodes.
        console.warn(response.data[0].t, ':', response.data[0].s, '$' + response.data[0].p);
        break;
      default:
        // anything else we haven't caught yet.
        console.log(response);
    }

  });

  // Unsubscribe
   var unsubscribe = function(symbol) {
      socket.send(JSON.stringify({'type':'unsubscribe','symbol': symbol}))
  }
</script>
</body>
</html>

hypo-thesis commented 4 years ago

I wanted to mask my token obviously and mytokenrepresents actually the api token. I get that error from time to time. Happens at least 5 hours every week. Is this a server issue?

quitrk commented 3 years ago

@suchislife801 do you need to handle ping responses? or is it implemented in the ws implementation?

landerson85 commented 3 years ago

这个问题我几个月前就已经反馈过，但没有结果，付费与免费一样，经常在晚上停机，一停就几小时

finnhubio / Finnhub-API

Error 200 on Websocket #346