Create a Full Stack NFT Marketplace on the Polygon Network

Learn how to create NFT Marketplace using hardhat, IPFS, and Next js

credit: robotos nft

Functions

1. Web3 authentication using metamask/walletconnect/coinbase
2. Create & list tokens for sale
3. Using IPFS for uploading the file
4. Marketplace owner can set platform fee
5. Buyer can purchase token and list it again for sale
6. Contract is deployed on Matic mumbai testnet (https://mumbai.polygonscan.com/address/0x0E1Ee61D5C435C1320E3fb766328F35263E41Bff)

How Does Polygon Work?

Polygon is a multi-level platform with the aim to scale Ethereum thanks to a plethora of sidechains, all of which aim to unclog with the main platform in an effective and cost-efficient manner.

Polygon’s main chain is a Proof of Stake (PoS) sidechain in which network participants can stake MATIC tokens to validate transactions and vote on network upgrades.

Setting-up Playground

1. Create a next-js app

git clone https://github.com/ac12644/NFT-Marketplace.git

2. Install packages

yarn

Back-end

Initiate hardhat by the following code

npx hardhat

If given an error for README.md file delete it and retry

3. Configure hardhat.config.js file as given:

4. We will now create the Marketplace.sol contract. This contract will be used to store listings of items for sale, as well as to track bids and purchases. The contract will also include a function to add new items to the marketplace. The listingPricewill be used to define the platform listing fee. It can be changed later, and the seller’s address will be stored as well.