fix bug in websocketProviderV2 docs

[Vojtch159]

What was wrong?

The documentation example doesn't work.

How was it fixed?

Changed the documentation.

Todo:

• Add entry to the release notes

Cute Animal Picture

[Vojtch159]

The issue exists because the iterator yields the object itself but the enter method returns the connected object.

[fselmo]

I don't believe this addition is necessary. If there is no connection by the time the first call is made, the connection is initiated.

async def wsV2_example():
    async for w3 in AsyncWeb3.persistent_websocket(
        WebsocketProviderV2(f"wss://mainnet.infura.io/ws/v3/{INFURA_PROJECT_ID}")
    ):
        try:
            subscription_id = await w3.eth.subscribe("newHeads")
        
            while True:
                async for response in w3.listen_to_websocket():
                    print(response)
                    ...
         
         except websockets.ConnectionClosed:
             continue

asyncio.run(wsV2_example())

Do you have issues running the above example? What is the specific issue you are seeing?

[Vojtch159]

Oh, then I apologise for wasting your time here. I investigated, and when I don't connect manually my code gets stuck at creating filters (I'm subscribing to specific "logs"). At the moment I'm not sure why it happens but it seems like a different issue and I'll have to investigate it more deeply. Everything starts working perfectly fine when I do the connection manually right at the start 😕 Anyway, thank you for the response!