Ethereum: “‘Promise {
As a developer building smart contracts on the Ethereum blockchain using the popular Hardhat framework, you may encounter difficulties deploying your contract. A common issue is receiving an error response that indicates that the deployment succeeded but has not actually been deployed yet (i.e., it is in a waiting state).
In this article, we will explore why this might happen and how to fix it.
What does “Waiting” mean?
When you use ethers.getContractFactory().deploy(), Hardhat creates an Ethereum smart contract factory that allows you to deploy contracts to the blockchain. The contract is created using Solidity, a programming language used to write smart contracts on the Ethereum network.
In some cases, the deployment script may not finish creating and deploying the contract in time before it is called by other code. This can cause issues when trying to access or interact with the deployed contract.
Why is my contract still “Pending”?
There are several reasons why your contract may be stuck in a waiting state:
- Transaction Timeout – If a transaction takes longer than expected to complete, Hardhat may reject it and delay the deployment process.
- Contract Creation Issues
}’ Response When Deploying Smart Contract Using Hardhat – How to Resolve?”
” src=”https://citymartstores.com/wp-content/uploads/2025/02/98d62d20.png”>– Contracts can sometimes take a while to create, especially if you use advanced settings or complex code.
- Network Congestion – If multiple nodes are attempting to deploy contracts at the same time, network congestion can cause delays.
Troubleshooting
To resolve this issue, follow these steps:
1. Check transaction timeouts
If the deployment script takes too long to create and deploy the contract, Hardhat may reject it. You can check if transactions have expired by examining the transactionHash output of the getContractFactory().deploy() call.
const factory = ethers.getContractFactory('BinaryvilleRobotsNFT');
const deployment = await factory.deploy();
const transactionHash = await deployment.wait();
// Check if transaction has expired
if (transactionHash && transactionHash.timestamp < block.timestamp - 30000) {
// Handle timeout error
} else {
// Deployment succeeded, but contract is still pending
}
2. Optimize your deployment script
To speed up deployment time:
- Reduce the complexity of your Solidity code.
- Use a more efficient build configuration.
- Minimize the number of dependencies.
3. Control network congestion
If multiple nodes are attempting to deploy contracts at the same time, consider using a distributed deployment strategy or optimizing the contract compilation process to reduce network contention.
4. Handle timeouts explicitly
Instead of relying on wait() to handle timeouts implicitly, you can use a timeout callback function:
const factory = ethers.getContractFactory('BinaryvilleRobotsNFT');
const deployment = await factory.deploy({
// More parameters...
}, (error: any) => {
if (error && error.code === 8) {
// Deployment timeout
} else {
// Deployment succeeded, but contract still pending
}
});
Following these steps and troubleshooting tips should resolve the issue “Receiving response ‘Promise {