How to Create a DApp Using Solidity in 20 Minutes

Blockchain DApp Development

Decentralized applications (DApps) are the future of web development, offering trustless and secure solutions using blockchain technology. In this tutorial, we will create a simple DApp using Solidity and integrate it with React + TypeScript.

Step 1: Set Up the Project

Run the following command to create a React + TypeScript project:

npx create-react-app my-dapp --template typescript

Step 2: Install Hardhat

Hardhat is a development tool for smart contracts. Install it using:

npm install --save-dev hardhat

Step 3: Create a Smart Contract

Inside the Hardhat project, create a Solidity smart contract (MyContract.sol):

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract MyContract {
    uint public count;

    function increment() public {
        count += 1;
    }
}

Step 4: Deploy the Contract

Deploy the contract using a Hardhat script:

const hre = require("hardhat");

async function main() {
  const MyContract = await hre.ethers.getContractFactory("MyContract");
  const contract = await MyContract.deploy();
  await contract.deployed();
  console.log("Contract deployed to:", contract.address);
}

main().catch((error) => {
  console.error(error);
  process.exit(1);
});

Conclusion

Congratulations! You have successfully created and deployed a simple Solidity-based DApp using React and TypeScript. You can now build more advanced applications and explore blockchain integration further.