NFT Minting

This application is a simple example to understand the process of creating an NFT.

MumbaiTestNet Metamask Network Parameters:

Network Name: Mumbai Testnet
New RPC URL: https://rpc-mumbai.maticvigil.com
Chain ID: 80001
Currency Symbol: MATIC
Block Explorer URL: https://polygonscan.com/

API Endpoints

http://localhost:3011/store

This endpoint posts image to IPFS by using nft.storage API

Method: POST
Payload: None

Response:

{
    "metadata": {
        "name": "TOGGNFTTest2",
        "description": "TOGG NFT Test2",
        "image": "ipfs://bafybeiatlrvoolbn5m5bxeua5hramuuuemc44w26cjevktd7yc6hy5qxiq/TOGGNFTTest.png"
    },
    "ipnft": "bafyreifddym57uuvki275ndmcx4dzjc6yrp5askoeyjd2lzzpn2ibixkhm",
    "url": "ipfs://bafyreifddym57uuvki275ndmcx4dzjc6yrp5askoeyjd2lzzpn2ibixkhm/metadata.json"
}

http://localhost:3011/mintNFT

This endpoint mints the image and returns the tx id

Method: POST

Payload:

{
  "metadata": "ipfs://bafyreifddym57uuvki275ndmcx4dzjc6yrp5askoeyjd2lzzpn2ibixkhm/metadata.json"
}

Response:

{
  "txHash": "0x8f7defd844434f954d1d15b94b9e654ac2944883f1d48c0bb8ca880b110d6986"
}

Hardhat CLI

https://hardhat.org/hardhat-runner/docs/getting-started#overview

Deploy contract

npx hardhat run scripts/deploy-contract.mjs --network PolygonMumbai

Output:

nft-builder-backend % npx hardhat run scripts/deploy-contract.mjs --network PolygonMumbai
ContractAddress:  0x245Ad6929537c872ff6Aa6124f3557Ea2782d9f3

Mint NFT

You can also use this cli to mint your NFT

npx hardhat run scripts/mint-nft.mjs --network PolygonMumbai

Output:

NFT minted to:  0x8B8590761d9a27f9abffCa684610Cd02a61a4B5B

Verify Your NFT

For this example you can see the result: https://testnets.opensea.io/0x8B8590761d9a27f9abffCa684610Cd02a61a4B5B

Minting Transaction Example

https://mumbai.polygonscan.com/tx/0x8f7defd844434f954d1d15b94b9e654ac2944883f1d48c0bb8ca880b110d6986

References

https://nftschool.dev/tutorial/mint-nftstorage-polygon/#introduction

alcnsahin / nft-builder