How to handle MetaMask disconnecting from dapp?

Question

How do you detect when a MetaMask user disconnects their wallet from your dapp? I see there is a disconnect event, but this is a for disconnecting from RPC - I want to know when the user has explicitly disconnected their wallet.

Answer 1

Use the accountschanged event.

ethereum.on('accountsChanged', handler: (accounts: Array<string>) => void);

Answer 2

Verify if has any account.

ex: the accounts variable return an array, if has any account on array your dapp is conneted.

Use this code bellow:

const accounts = await ethereum.request({ method: "eth_accounts" });
const isConnected = !!accounts.length;