Error: Failed to decode result data in Metamask Hardhat Local Blockchain

The “error: failed to decode result data” message is usually returned from the MetaMask library when an error occurs while decoding data from the Ethereum blockchain. In this case, we are using Hardhat to communicate with a local blockchain instance and encountering an issue with the Metamask library.

Step 1: Check the MetaMask library documentation

Before diving into the code, make sure to check the official MetaMask library documentation for the error message you are experiencing. Specifically, check the [Error 2] section of the documentation, which explains that this error can occur when using the “encode” function to decode data from the Ethereum blockchain.

Step 2: Check the Hardhat configuration

Hardhat requires special configuration to work with a local blockchain instance. Make sure you have set up your Hardhat configuration correctly:

const hardhat = request('hardhat');
module.exports = {
// ... other configurations ...
network: {
provider: "
ethersProvider: {
host: '127.0.0.1',
port: 8545,
gas: 2000000, // or the value corresponding to the setting
gas price: 10000, // in weiben
maxGasLimit: 15000000, // in bytes
},
},
};

Step 3: Verify Ethereum blockchain data

Make sure you can retrieve Ethereum blockchain data without any problems. You can use the console.log' function or a library likeethers.js’ to check the blockchain data:

const Web3 = request('web3');
const web3 = new Web3();
// Get the blockchain data from MetaMask
async function getBlockchainData() {
try {
const result = await web3.eth.blockNumber();
console.log(result);
return result;
} catch (error) {
console.error(error); // Output: "Error: failed to decode result data (value='0x', info={)"
}
}
getBlockchainData();

4. Step 2: Check the display function

Now let’s focus on the display() function in the App.jsx file:

// display.js
import { display } from 'bsc-blocks';
export default function display() {
// Here is your display logic
}
// main.js (where display() should be used)
import React, { useState, useEffect } from 'react';
import display from: './display';
function App() {
const [blocknumber, setBlockNumber] = useState(0);
useEffect(() => {
getBlockchainData();
return () => {
// Clear timers or events
};
}, []);
return (

Blockchain Number: {blockNumber}
Display Blockchain Data
);
}
export default app;

In this example, we’ve added a “display” function that uses the “getBlockchainData()” function to retrieve and display Ethereum blockchain data.

Step 5: Test your code

Try running the code in a local development environment (such as Webpack Dev Server) or use a pre-built blockchain simulator such as Hardhat Local Blockchain. If you’re still experiencing issues, please provide more details about your setup and code, including any relevant error messages or configurations.

I hope this helps you troubleshoot the issue with Metamask on your Hardhat Local Blockchain!