Metamask: RPC error: execution canceled” when calling a function from next.js

Metamask RPC Error: Execution Revoked – Next.js Function Call Troubleshooting Guide

As a Next.js developer, you are no stranger to working with complex API calls and asynchronous workflows. However, when it comes to interacting with decentralized applications (dApps) like MetaMask on the Ethereum blockchain, things can get a little more complicated. Specifically, you have encountered an error message that looks like this: “RPC Error: Execution Revoked”.

At first glance, this may seem like a simple issue related to contract addresses or ABI versions. However, before jumping to conclusions, let’s dive deeper into what is happening and explore possible solutions.

What is RPC Error: Execution Revoked?

In Ethereum blockchain transactions, the executionRevoked error occurs when the execution of an Ethereum transaction fails for some reason. This can be due to a number of factors, including:

• Smart contract logic errors

• Transaction validation issues

• Interoperability issues with other blockchains

When a smart contract execution is canceled, it means that the blockchain rejected the transaction or function call due to an internal conflict or error.

Why might this error occur?

To better understand what’s happening, let’s take a closer look at the code. Assuming you’ve set up your Next.js project with MetaMask integration, here are a few potential causes:

• Contract address mismatch: If the contract address specified in your useMetaMask hook doesn’t match the actual contract address deployed on the blockchain, this can lead to an execution cancellation error.

• ABI version mismatch: Even if you’re using the correct ABI contract, there can be a conflict between the ABI version required by MetaMask and the one used by your code. Make sure you import the latest ABI versions for all involved contracts.

• Smart Contract Logic Errors: Intentionally or unintentionally writing incorrect smart contract logic can cause execution cancellation errors.

Troubleshooting Steps:

To resolve this issue, try the following:

• Check contract addresses and ABIs: Double-check that your contract addresses are correct and that the ABI versions match MetaMask’s requirements and yours.

• Update Next.js code to match MetaMask’s contract address

  

  : Make sure your useMetaMask hook is using the correct contract address, even if it is different from the one you specified in your code.

• Check smart contract logic errors: Review your code to make sure there are no syntax or logic errors that could cause execution cancellation errors.

Example use cases:

Here’s an example of how you can modify your useMetaMask hook to validate the contract address and ABI:

“`jsx

import { MetaMask } from “@metamask-connect”;

import { useContract } from “next-use-contract”;

const metamask = () => {

const { account, setAccount } = useMetaMask();

const executeSmartContract = async (contractName) => {

// Verify the contract address and ABI

if (!account || !account.abi || account.abi.length !== contractName.length) {

console.error(“Invalid contract name or ABI.”);

return;

}

try {

const result = await executeContract(account, contractName);

console.log(result);

} catch (error) {

console.error(error);

}

};

// Example function for testing

async function executeContract(account, contractName) {

// Replace with your actual implementation of the function

return new Promise((resolve, discard) => {

const { tx } = await account.functions[contract name].