NFT-Market

NFT Marketplace built on top of Ethereum to permit my fellow engineering students @INSAT publish and sell their art

Demo

This demo demonstrates how:

• User1 mints an NFT
• User1 pays the listing fee to have his NFT listed on the marketplace
• User1 can see his created NFTs
• User2 can see available NFTs
• User2 buys an NFTs and make sure ownership is transfered
• User1 and User2 can both see available NFTs and owned NFTs

Stack used

• Web App : Next.js
• Solidity development : Hardhat
• File Storage : IPFS
• Ethereum Web Client Library : Ethers.js
• Deployment : Polygon

Run locally

1. install dependencies

npm install

2. copy your private key to a .secret file : this is needed for when to deploy your smart contract on other network than localhost.

echo "<your_private_key>" > .secret

PS : obviously this not the best way to do this bcause your private key will be saved in the shell history, but we just test locally.

3. run a local ethereum node with hardhat

npx hardat node

4. run tests (will also compile smart contracts)

npx hardhat test

5. create a new config.js file to hold the smart contracts addresses when you deploy

cp config.example.js config.js

6. deploy to local node

npx hardhat run scripts/deploy.js --network localhost

7. run the next js server

npm run dev

Known Issues

1. When creating the first transaction on the blockchain

Nonce too high. Expected nonce to be 0 but got 2. Note that transactions can't be queued when automining.

solution: this happens because of old history saved in the accocunt from previous tests => open advanced options in Metamask and reset the account.