[v6] Can't listen for event

[viac92]

Hi everybody!

I don't understand how to get events with ethers v6, I tried in this way following the docs

if (window.ethereum == null) {
  console.log("Metamask is not installed; using read-only defaults");
  const provider = ethers.getDefaultProvider();
  // ...
} else {
  const provider = new ethers.BrowserProvider(window.ethereum);
  const signer = await provider.getSigner();
  const abi = BiteIDNFT_abi;
  const contractNFT = new ethers.Contract("contractaddress", abi, signer);

  await contractNFT.safeMint("contractaddress", "ipfs://test");

  contractNFT.on("*", (from, to, tokenId, event) => {
    console.log(`${ from } => ${ to }: ${ tokenId }`)

      // Optionally, convenience method to stop listening
      event.removeListener();
  });
}

and the nft was correctly minted on the blockchain with the correct Transfer event.

But on the browser console I get this [object Object] => undefined: undefined

I'm using Metamask and the contract is on Polygon Testnet.

Any tips?

[ricmoo]

You can’t destruct events that are emitted from "*", since every event has a potentially different signature. So you only get the Event payload, that object you are getting.

So it should look like provider.on("*", (log, evt) => { console.log(log); }).

[viac92]

Uh you're right! Thank you so much! :)

[bomb-on]

So it should look like provider.on("*", (log, evt) => { console.log(log); }).

Why did you switch from contract.on() to provider.on()? Which one is correct?

I'm struggling to make events listener working (opened a question #3810), if I switch to provider.on() I get an error:
Uncaught (in promise) TypeError: unknown ProviderEvent (argument="event", value="Transfer", code=INVALID_ARGUMENT, version=6.0.8)

Could you please assist with it? Thanks!

[ricmoo]

Oh, sorry. Yes, contract.on("*", (event) => { console.log(event.eventName, event.args, event.log); }). The event object will be a ContractPayload.

[crycime]

Did the 'error' event listener get removed in v5, like provider.on('error', () => {})?