FAQs related to Integrating your Smart Contract with Frontend

1. What is the purpose of using Hardhat in this tutorial?

Hardhat is used as the Ethereum development environment to compile, deploy, and test the smart contract. It provides tools and features that make it easier to develop and manage smart contracts on a local blockchain.

2. Why do we need a separate file to connect the smart contract with the frontend?

A separate file, such as CrowdFunding.js in the Context folder, acts as a bridge between the smart contract and the frontend. This separation helps organize the code, making it easier to manage and maintain the integration logic.

3. What should I do if I encounter dependency conflicts during installation?

Dependency conflicts can arise due to version mismatches. To avoid these, use the specific versions of dependencies provided in the tutorial. If issues persist, consider checking for updated compatibility notes or seeking help from the package documentation or community forums.

4. How can I ensure my wallet is properly connected to the application?

Use the connectWallet function in your CrowdFunding.js file to connect the wallet. Ensure you have the MetaMask extension installed and configured. When you click the “Connect Wallet” button, MetaMask should prompt you to select an account. Once connected, the wallet address will be displayed on the frontend.

5. What steps are necessary if I redeploy my smart contract?

After redeploying your smart contract, you need to update the contract address in the Constants.js file. Additionally, you should delete the old Contract.json file from the Context folder and replace it with the new one from the artifacts folder generated by the deployment process. This ensures your frontend is interacting with the correct contract instance.

In this article, we are going to learn how to connect a smart contract to the front end. To keep the process less complex and focus on the integration process, the smart contract in itself is kept simple. You can easily introduce multiple complex functions once you understand the basics.

For this tutorial, we are simply putting a campaign on the local blockchain, and once it has been mined it will be shown on the front end. I have taken this example because to take in the data from the front and put it back is the most basic thing, once you learn that, you can, of course, perform any required function on the data and then show it on the front page.