Unexpected Provider Listener Timeout

[zobront]

I have a listener on the provider listening for a specific topic.

const filter = { topics: ['TOPIC'] }

provider.on(filter, (log) => {
        console.log(log)    
})

This works fine for approximately 45-60 minutes, but then errors out with the following:

repo/node_modules/undici/lib/core/connect.js:106
  util.destroy(socket, new ConnectTimeoutError())
                       ^
ConnectTimeoutError: Connect Timeout Error
    at Timeout.onConnectTimeout [as _onTimeout] (/repos/splits/node_modules/undici/lib/core/connect.js:106:24)
    at listOnTimeout (node:internal/timers:561:11)
    at processTimers (node:internal/timers:502:7)

I am using Hardhat and connected to Infura via JSON RPC.

Is there a way to keep the script running (or automatically reset it) instead of crashing on the timeout error?

[ricmoo]

I’m not sure what undici Is, but it looks like the problem is inside that library?

[zobront]

I thought that was the library ethers relied on for polling but looks like that's only the case when ethers is imported by hardhat.

I imported ethers directly and it solved it. Thank you!