How to build a Dapp - Writing your first solidity contract

Overview

Are you interested in blockchain development but don’t know where to start? This three-part tutorial will guide you through building your first decentralized application (Dapp) using Solidity, Truffle, Ethers, and Three.js. By the end of the series, you’ll have created and deployed your own smart contract, interacted with it through a web interface, and even visualized it in 3D.

This first video focuses on writing and deploying a simple smart contract on the Ethereum blockchain using Solidity and Truffle. If you’re ready to start your journey into Web3 development, let’s dive in!

Why Learn Smart Contracts?

Blockchain technology allows developers to create decentralized applications that run without the need for a central authority. But to build these applications, you need smart contracts—self-executing agreements that enforce rules on the blockchain.

In this tutorial, we’ll:

Write a simple Solidity smart contract.
Deploy it on a test network.
Interact with it using blockchain tools like MetaMask and Infura.

Insights and Skills

Throughout this tutorial, you’ll gain hands-on experience with:

Writing your first Solidity smart contract.
Using Remix IDE for quick contract development.
Setting up a development environment with Truffle.
Deploying smart contracts to a test network.
Using Infura for blockchain interactions without running a full node.
Setting up MetaMask and getting test Ether.

Tech Stack

Solidity
Remix IDE
Truffle
MetaMask
Infura
Ethers.js & useDapp

Code link

Source code 🔗
Final result 🔗

Resources

The Smart Contract (InfinityTower.sol)
Rinkeby Faucet to get your free test ethers
[To get further :

The excellent CryptoZombies courses](https://cryptozombies.io/en/course)

#solidity #web3 #dapps

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