如何使用以太坊在reactjs中注销metamask帐户

Question

我无法断开与 Metamask 帐户的连接。我附上代码片段。

export const logoutUser = () => {
    if (window.ethereum && window.ethereum.isMetaMask) {
        window.ethereum.on('accountsChanged', function (accounts) {
            return () => window.ethereum.removeListener('accountsChanged', accounts);
        });    
    }
}

Answer 1

截至目前，您无法通过 web3 或以太坊 api 注销 Metamask。您必须手动断开 Metamask。

accountChanged

监听器只会检测 Metamask 是否连接到不同的帐户。

Answer 2

到目前为止，我们无法从我们的应用程序中断开与 Metamask 的连接，但开发人员所做的是通过按断开/连接按钮在该应用程序内的变量中删除/添加该 Metamask 帐户的信息。

Answer 3

import React from 'react';

function MetaMaskLogoutButton() {
  const handleLogout = async () => {
    try {
      if (window.ethereum && window.ethereum.isMetaMask) {
        // Requesting permission to disconnect the current account
        const permissions = await window.ethereum.request({
          method: 'wallet_requestPermissions',
          params: [
            {
              eth_accounts: {},
            },
          ],
        });

        // Checking if the user approved the disconnection
        const approvedPermission = permissions.find(
          (permission) =>
            permission.parentCapability === 'eth_accounts' &&
            permission.caveats.length === 0
        );

        if (approvedPermission) {
          // Disconnecting the current account
          await window.ethereum.request({
            method: 'wallet_requestAccounts',
            params: [
              {
                eth_accounts: {},
              },
            ],
          });
          alert('Successfully logged out');
        } else {
          alert('Logout canceled');
        }
      } else {
        alert('MetaMask is not installed');
      }
    } catch (error) {
      console.error('Error during logout:', error);
    }
  };

  return (
    <button onClick={handleLogout}>
      Logout from MetaMask
    </button>
  );
}

export default MetaMaskLogoutButton;