Creating an NFT Marketplace

Using DApp (Decentralized Application)

NFT minting, listing for sale, purchasing, and deletion all in one place!

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NFT Marketplace DApp - My Own NFT Trading Platform

Key Features

✅ NFT Minting
✅ Sale Registration
✅ NFT Purchase
✅ NFT Deletion (Burning)

💡 Why jQuery?

Reasons for using jQuery instead of React:

• Low Entry Barrier: No need to learn frameworks like React, Vue, etc.

• Ready to start immediately: Just add one CDN line to HTML and use right away

• Focus on blockchain learning: Concentrate on DApp development without complex frontend build configurations

• Just basic JavaScript knowledge is OK: knowing functions, variables, and basic syntax is enough

🛠 Core Technology Stack to Learn

1. jQuery

• DOM Manipulation and Event Handling

• User Interface Implementation

2. web3.js

• Connect with MetaMask

• Reading Blockchain Data

• Sending Transactions

• Smart contract function call

3. ERC-721 Standard

• NFT Token Creation (mint)

• Ownership transfer (transfer)

• Token burn

• Implementing Sales Logic

4. IPFS

• NFT Image Storage

• Metadata Upload

• Decentralized File Management

📱 Supported Blockchain Networks

In this course, we deploy to 3 testnets:

NetworkFeaturesReason for UseEthereum SepoliaMost common testnetTesting before mainnet deploymentPolygon AmoyFast and cheap transactionsExperiencing real-world environmentKaia KairosKakao blockchain testnetIntegration with domestic ecosystem

It's a testnet, so no real money is involved!

You'll learn this kind of content

🤔 Have you ever had these concerns?

I'm interested in blockchain development, but...

❓ "Frameworks like React are difficult, so DApp development feels overwhelming"

❓ "I want to write smart contracts with Solidity but I don't know where to start"

❓ "I want to mint NFTs myself but I don't know how"

❓ "I've heard of what IPFS is, but I don't know how to actually use it"

❓ "I installed MetaMask but I don't know how to connect it to a DApp"

❓ "I'm curious about how to read and write blockchain data with web3.js"

❓ "I want to create an NFT marketplace using the ERC-721 standard"

❓ "I want to try deploying to multiple blockchain networks (Ethereum, Polygon, Kaia)"

✨ You can solve everything in this course!

📚 What you can learn through this course:

✅ Developing DApp with jQuery

• React is not necessary! Start with familiar JavaScript

✅ Writing Solidity Smart Contracts

• ERC-721 Standard-Based NFT Contract Implementation

• Development of minting, selling, purchasing, and burning functions

✅ IPFS File Upload

• Store images and metadata in decentralized storage

• Learning Methods for Permanent Storage of NFTs

✅ NFT Minting Implementation

• Form data collection → IPFS upload → Blockchain recording

• Building a Real Working NFT Minting System

✅ NFT Trading Features

• Listing for Sale: Putting My NFT on the Market

• Purchase Feature: Buying NFTs with Ethereum

• Delete Function: Implementing Token Burn

✅ web3.js blockchain communication

• Connect MetaMask

• Smart Contract Function Call

• Transaction Processing

✅ Multi-chain deployment

• Ethereum Sepolia Testnet

• Polygon Amoy Testnet

• Kaia Kairos testnet

✅ Complete NFT Marketplace

• Practical Full-Stack DApp Ready for Real Use

• Projects that can be used as a portfolio

Introducing Our Instructors 👩‍💻

Hello, I'm Kyung-il In.