Expose ws.onclose method to client

[sOm2y]

when there aren't many events on subscribed address the websocket seems to close the session probably due to default os/firewall/network setting tcp keep alive: 7200 - 2 hours
For example, I use this function to monitor/subscribe my block rewards when my validator has been elected in current epoch, I can see events coming in but when it's not elected and you have to wait 12 hours to be elected again, the websocket timed out already, have to manually restart the process.

const { next, close } = await client.blockchainStreams.subscribeForLogsByAddressesAndTypes(
      {
        addresses: [validatorAddresss],
        types: [], 
        withMetadata: true,
      },
      { once: false }
    )

proposed way to mitigate that:
expose ws.onclose to client, so we can pass callback function to reset the subscribe function

   ws.onclose = function(){
        setTimeout(subscribeFunctionAgain, 1000);
    };

[onmax]

Hey, just released v0.5.5. ea39457

Now you should be able to access the WebSocket instance as follows

const { next, close, ws } = await client.blockchainStreams.subscribeForLogsByAddressesAndTypes(...)

ws.onclose()

Let me know if this solution works for you, specially if you find any issues with the types. Thank you!

PS: I am planning to refactor the WebClient implementation to use a WebSocket library to take advantage of features like auto-reconnect, timeout... You can follow #64 to find out when this will be available :)

[sOm2y]

Hey, just released v0.5.5. ea39457

Now you should be able to access the WebSocket instance as follows

const { next, close, ws } = await client.blockchainStreams.subscribeForLogsByAddressesAndTypes(...)

ws.onclose()

Let me know if this solution works for you, specially if you find any issues with the types. Thank you!

PS: I am planning to refactor the WebClient implementation to use a WebSocket library to take advantage of features like auto-reconnect, timeout... You can follow #64 to find out when this will be available :)

thanks @onmax great work!