DESCRIPTION

A DApp for music NFT storage, listing, sale and purchase.

STACK

• ReactJS
• NPM
• Hardhat
• IPFS
• Ethereum

QUICKSTART COMMANDS

npm run start to fire up the React f/e app.

npx hardhat node to start the local hardhat network at http://127.0.0.1:8545/, and the HTTP + WebSocket JSON-RPC server at atop it. Note the 20 "canned" accounts created by Hardhat.

npm run local:deploy to deploy contracts onto the local hardhat node. Note the contract address.

From another terminal connect to hardhat console with npx hardhat console --network localhostso you can interact with a contract deployed to the local HH network, using ethersJSand helpers added by the hardhat-ethers plugin.

The, in the console prompt run the following:

const c = await ethers.getContractAt("<<CONTRACT_NAME>>","<<CONTRACT_ADDRESS>>")

# call methods on the contract, such as:
await c.owner()
await c.baseURI() # public state variable declared in the contract
await c.name() # returns the token name as per ERC721 constructor args
await c.symbol() # returns the symbol name as per ERC721 constructor args

Classes and Objects

MusicNFTMarketplace

• State Variables

  • token name & token symbol (public strings)
  • baseURI (public string)
  • baseFileExtension (public string)
  • artist address (public address)
  • royaltyFee (public uint256) marketItems (public marketItem[])

• Structs

  • MarketItem:
    • tokenId (uint256)
    • seller (address payable)
    • price (uint256)

• Methods

Questions I want to research

1. what's the difference between _mint() and _safeMint()?