Metamask: Metamask Connect Button Not working when adding “Deposit” function

Metamask Connect button not working with “Storage” feature

I recently ran into a frustrating issue while trying to integrate Metamask into my main application using the Ethers.js JavaScript library. Specifically, I’m having trouble adding the “Storage” functionality to my Metamask-enabled contract.

In this article, we’ll walk you through the steps to resolve this issue, ensuring your Metamask-connected app works properly with the “Storage” feature.

Problem

When you add the following code to create a new instance of your contract:

import { ethers } from './ethers-5.6.esm.min.js';
import { abi, contractAddress } from './metamask-abi.json';
const contract = new ethers.Contract(contractAddress, abi);

I get an error message that the “login” function is not defined:

Error: Connection is not defined

This error occurs because Metamask has not been configured correctly to connect to the Ethereum network. The “Archive” function relies on this connection to function.

Troubleshooting steps

To resolve this issue, you need to make sure that:

• Metamask is enabled

  : Go to the MetaMask browser extension or app and enable it for your account.

• Metamask is installed: Make sure Metamask is installed on your computer by going to Settings > Devices > Install/Update and selecting “Metamask”.

• Network connection established: Check if a network connection to the Ethereum blockchain has been established (e.g. Ethereum mainnet, Rinkeby testnet).

Code Changes

Here is an updated example of how you can modify your index.js file to include the required code for Metamask:

import { ethers } from './ethers-5.6.esm.min.js';
import { abi, contractAddress } from './metamask-abi.json';
const contract = new ethers.Contract(contractAddress, abi);
// Connect to the Ethereum network using MetaMask
async function connect() {
Attempting {
wait for ethers.connect();
} catch (error) {
console.error('Error connecting to Metamask:', error);
}
}
connect();
// Add the "Deposit" function.
contract.on('Deposit', async (deposit, receipt) => {
// Handle deposited amount logic here
console.log(${deposit.toNumber()} tokens deposited!);
});
// Add a button to trigger the submit function
function creaButton() {
const button = document.createElement('button');
button.textContent = 'Deposit';
button.addEventListener('click', async () => {
wait for contract.deposit();
// Handle successful submit logic here
});
document.body.appendChild(button);
}
createButton();

Additional recommendations

To further troubleshoot and improve integration:

• Make sure you have Metamask installed correctly on your computer.

• Verify that MetaMask is properly configured to connect to your Ethereum network (e.g. network type, wallet address).

• Consider adding logging instructions to your code. to monitor errors and troubleshoot issues.

By following these steps and tweaks, you should be able to resolve the issue with the “Deposit” feature not working when using Metamask in the main app.

ethereum binance testnet