Marko Ivanković

Web3 Developer Crash Course

Master the core Web3 stack in one session. Learn to build, test, and deploy a custom NFT collection using Hardhat, Solidity, and Ethers.js.

Web3 Developer Crash Course
#1about 7 minutes

Understanding the core components of a blockchain transaction

A transaction's key fields like hash, status, gas price, and value are explained as the fundamental building blocks of the blockchain.

#2about 7 minutes

Exploring the basics of smart contracts and Solidity

Smart contracts are defined as immutable code on the blockchain, with a line-by-line breakdown of a basic Solidity contract's syntax and structure.

#3about 2 minutes

Following the lifecycle of a smart contract deployment

The process of developing a smart contract involves writing Solidity code, compiling it to bytecode, and sending it to the blockchain via a signed transaction.

#4about 2 minutes

Breaking down the architecture of a decentralized application

A dApp typically consists of an on-chain smart contract for logic and an off-chain front-end for user interaction, sometimes supplemented by a traditional back-end.

#5about 3 minutes

Differentiating between fungible and non-fungible tokens

Token standards like ERC-20 for fungible assets, ERC-721 for unique non-fungible tokens (NFTs), and ERC-1155 for semi-fungible assets are explained.

#6about 6 minutes

Setting up a development environment with Hardhat

A step-by-step guide shows how to initialize a new smart contract project using the Hardhat framework and explains its default folder structure.

#7about 11 minutes

Analyzing the structure of an ERC-721 NFT contract

A practical ERC-721 contract is examined, highlighting the use of OpenZeppelin libraries for security and standard functionality like ownership control.

#8about 6 minutes

Implementing core functions for an NFT minting contract

Key functions like `mint`, `withdraw`, and `tokenURI` are detailed, covering concepts such as `payable` functions, visibility modifiers, and transaction reverts.

#9about 5 minutes

Minting an NFT through a front-end application

A live demonstration shows how to mint an NFT by interacting with a deployed smart contract via a front-end, confirming the transaction with MetaMask.

#10about 7 minutes

Answering common questions about web3 development

The discussion covers beginner resources, real-world blockchain use cases like supply chain, the importance of security, and future trends such as ZK proofs.

Related jobs
Jobs that call for the skills explored in this talk.

Featured Partners

Related Videos

See all videos
​Road to Web342:19

​Road to Web3

Soumaya Erradi

Testing web3 applications53:58

Testing web3 applications

Soumaya Erradi

Blockchain, NFT and smart contracts for my application57:38

Blockchain, NFT and smart contracts for my application

Hendrik Ebbers

Why chain abstraction is the best way to build successful web3 solutions for users49:33

Why chain abstraction is the best way to build successful web3 solutions for users

Alen Meštrov

Debunking the Top 10 Myths about Web 330:32

Debunking the Top 10 Myths about Web 3

Ed Marquez

Web3: Embracing the Next Era of the Internet Within a Web2 Landscape26:34

Web3: Embracing the Next Era of the Internet Within a Web2 Landscape

Darrel Idiagbor

Trust as the Key Concept in Future Mobility56:45

Trust as the Key Concept in Future Mobility

Peter Busch

Connect Metamask with web3js49:40

Connect Metamask with web3js

Wisdom Nwokocha

From learning to earning

Jobs that call for the skills explored in this talk.