I have a problem with connecting via Websockets to Infura. I am listening on some events from my smart contract, so when some event is dispatched by calling some method from smart contract, I should catch that event and do some stuff inside callback. Actually this seems to work locally(localhost), so I am connecting to Infura via Websockets without problem and everything works fine.
The problem occurs when a backend is deployed on aws instance. So the WebSocket connection to that AWS instance cannot be done and the most strangest thing is that I don't get any errors. Here is the code:
const web3Socket = new Web3(new Web3.providers.WebsocketProvider("wss://ropsten.infura.io/ws"));
...
...
...
let instance = await new web3Socket.eth.Contract(contractAbi, address);
instance.events.transactionEvent({
fromBlock: "latest"
}, (error, event) => { console.log(event); })
.on('data', async (event) => {
// do some stuff
})
.on('changed', function(event){
console.log('CHANGED');
console.log(event);
// remove event from local database
})
.on('error', console.error);
...
...
...
So actually .on('error', console.error); is not throwing any error for example connection lost or connection refused. Any tips/suggestions on what to try next or what can cause the issue?
