window.ethereum.methods

The window.ethereum object is injected into the browser by Ethereum-enabled browser extensions like MetaMask. It exposes various methods to interact with the Ethereum network.

Here are some commonly used methods available on window.ethereum:

1. eth_requestAccounts

• Requests access to the user's Ethereum accounts (MetaMask will ask the user to allow the request).
• Usage:

  await window.ethereum.request({ method: 'eth_requestAccounts' });

2. eth_chainId

• Returns the current chain ID of the connected network.
• Usage:

  const chainId = await window.ethereum.request({ method: 'eth_chainId' });
  console.log(chainId); // Example: '0x1' for Ethereum mainnet

3. eth_accounts

• Returns a list of Ethereum accounts available in the user's wallet (MetaMask).
• Usage:

  const accounts = await window.ethereum.request({ method: 'eth_accounts' });
  console.log(accounts); // List of accounts

4. eth_gasPrice

• Returns the current gas price in wei.
• Usage:

  const gasPrice = await window.ethereum.request({ method: 'eth_gasPrice' });
  console.log(gasPrice); // Gas price in wei

5. eth_getBalance

• Returns the balance of a given address in wei.
• Usage:

  const balance = await window.ethereum.request({
    method: 'eth_getBalance',
    params: ['0xAddressHere', 'latest']
  });
  console.log(balance); // Balance in wei

6. eth_sendTransaction

• Sends a transaction to the Ethereum network (you need to pass a transaction object).
• Usage:

  const tx = await window.ethereum.request({
    method: 'eth_sendTransaction',
    params: [{
      from: '0xYourAddressHere',
      to: '0xRecipientAddressHere',
      value: '0xAmountInWei', // For example: '0x29a2241af62c0000' for 0.1 ETH
    }],
  });
  console.log(tx); // Transaction hash

7. eth_sign

• Signs a message using the selected account.
• Usage:

  const message = 'Hello, Ethereum!';
  const signature = await window.ethereum.request({
    method: 'eth_sign',
    params: ['0xYourAddressHere', message],
  });
  console.log(signature); // The signature of the message

8. eth_signTypedData (v4+)

• Used for signing typed data (e.g., for EIP-712 compatible signatures).
• Usage:

  const typedData = {
    types: {
      EIP712Domain: [
        { name: 'name', type: 'string' },
        { name: 'version', type: 'string' },
      ],
    },
    domain: { name: 'MyApp', version: '1' },
    message: { from: '0xYourAddressHere' },
  };
  const signature = await window.ethereum.request({
    method: 'eth_signTypedData',
    params: ['0xYourAddressHere', typedData],
  });
  console.log(signature); // The signature

9. eth_subscribe

• Used to subscribe to certain Ethereum events (e.g., new blocks, pending transactions, etc.).
• Usage:

  const subscription = await window.ethereum.request({
    method: 'eth_subscribe',
    params: ['newHeads']
  });
  console.log(subscription);

10. enable (deprecated in favor of eth_requestAccounts)

• This method was used in older versions of MetaMask to request account access. It is now deprecated in favor of eth_requestAccounts.

11. isConnected

• Checks if the current provider (e.g., MetaMask) is connected.
• Usage:

  const isConnected = window.ethereum.isConnected();
  console.log(isConnected); // true if connected, false if not

12. request (general method to interact with Ethereum)

• In newer versions of MetaMask (and other providers), request is a generic method that combines the functionality of previous methods like send and sendAsync.
• Usage:

  const accounts = await window.ethereum.request({ method: 'eth_accounts' });
  console.log(accounts); // List of accounts

13. on (Event Listeners)

• You can listen for various events like account changes and network changes.
• Usage:

  window.ethereum.on('accountsChanged', (accounts) => {
    console.log('Accounts changed:', accounts);
  });
  
  window.ethereum.on('chainChanged', (chainId) => {
    console.log('Chain changed:', chainId);
  });

These are some of the most commonly used methods in window.ethereum. They allow you to interact with the Ethereum blockchain and perform actions like account management, sending transactions, and subscribing to events.

let me know if there is any changes