Websocket closes connection after few ping messages

[Becherman]

• Time: 2023-07-12T09:16:59.236Z

• Which endpoints are you having problems with
  https://finnhub.io/docs/api/websocket-press-releases

• How to reproduce the error and what is the expected result?
  Take an example from respective part of documentation and run the code. I assume connection should live as expected

After successful open event server sends me ping messages. After very random number such messages connection closes despite i emit pong in response

Code example

const WebSocket = require("ws");
const socket = new WebSocket(
  "wss://ws.finnhub.io?token=<my-api-token>"
);

// Connection opened -> Subscribe
socket.addEventListener("open", function (event) {
  console.log("WebSocket is opened");
  socket.send(JSON.stringify({ type: "subscribe-pr", symbol: "AAPL" }));
  socket.send(JSON.stringify({ type: "subscribe-pr", symbol: "MSFT" }));
  socket.send(JSON.stringify({ type: "subscribe-pr", symbol: "AMZN" }));
});

// Listen for messages
socket.addEventListener("message", function (event) {
  console.log("Message from server ", event.data, new Date().toISOString());
  
  if (event.data.type === 'ping') {
    socket.send(JSON.stringify({ type: 'pong' }))
  }
});

socket.addEventListener("close", () => {
  console.log("Connection closed");
});

// Unsubscribe
var unsubscribe = function (symbol) {
  socket.send(JSON.stringify({ type: "unsubscribe-pr", symbol: symbol }));
};

[mcigorli]

Raising the topic! I have exactly the same problem!
Will anyone help?

[Zedron]

Same issue although I'm using Java not python. Closes with code 1006 randomly. I've gotten around it by reconnecting when it closes unexpectedly, but not a great solution.

[bacarin]

bumping up , having the same problem in java implementation

[jjjachyty]

+1 golang

[skyheights]

+1 golang. connection just goes silent. gorilla client returns 1006