- A Basic NFT
- IPFS Hosted NFT
- That uses Randomness to generate a unique NFT
- SVG NFT (Hosted 100% on-chain)
- Uses price feeds to be dynamic
- BasicNft - 0x41Ac0A6ca3AEd9F04EA04DD1A31D5E77328eF65d
- DynamicSvgNft - 0xf53Bc92aadd748296Cf2b5c5AD33B447d2930e6D
- RandomIpfsNft - 0x9a360514C7FA30C23a4ab84bBC004Be12E3f869d
git clone https://github.com/Nedick/hardhat-nft.git
cd hardhat-nft
yarn
Deploy:
yarn hardhat deploy
yarn hardhat test
yarn hardhat coverage
- Setup environment variabltes
You'll want to set your RINKEBY_RPC_URL
and PRIVATE_KEY
as environment variables.
PRIVATE_KEY
: The private key of your account (like from metamask). NOTE: FOR DEVELOPMENT, PLEASE USE A KEY THAT DOESN'T HAVE ANY REAL FUNDS ASSOCIATED WITH IT.- You can learn how to export it here.
RINKEBY_RPC_URL
: This is url of the rinkeby testnet node you're working with. You can get setup with one for free from Alchemy
- Get testnet ETH
Head over to faucets.chain.link and get some tesnet ETH & LINK. You should see the ETH and LINK show up in your metamask. You can read more on setting up your wallet with LINK.
- Setup a Chainlink VRF Subscription ID
Head over to vrf.chain.link and setup a new subscription, and get a subscriptionId. You can reuse an old subscription if you already have one.
You can follow the instructions if you get lost. You should leave this step with:
-
A subscription ID
-
Your subscription should be funded with LINK
-
Deploy
In your helper-hardhat-config.js
add your subscriptionId
under the section of the chainId you're using (aka, if you're deploying to rinkeby, add your subscriptionId
in the subscriptionId
field under the 4
section.)
Then run:
yarn hardhat deploy --network rinkeby --tags main
We only deploy the main
tags, since we need to add our RandomIpfsNft
contract as a consumer.
- Add your contract address as a Chainlink VRF Consumer
Go back to vrf.chain.link and under your subscription add Add consumer
and add your contract address. You should also fund the contract with a minimum of 1 LINK.
- Mint NFTs
Then run:
yarn hardhat deploy --network rinkeby --tags mint
To get a USD estimation of gas cost, you'll need a COINMARKETCAP_API_KEY
environment variable. You can get one for free from CoinMarketCap.
Then, uncomment the line coinmarketcap: COINMARKETCAP_API_KEY,
in hardhat.config.js
and set REPORT_GAS
environment variable to get the USD estimation. Just note, everytime you run your tests it will use an API call, so it might make sense to have using coinmarketcap disabled until you need it. You can disable it by just commenting the line back out.
If you deploy to a testnet or mainnet, you can verify it if you get an API Key from Etherscan and set it as an environemnt variable named ETHERSCAN_API_KEY
. You can pop it into your .env
file.
In it's current state, if you have your api key set, it will auto verify rinkeby contracts!
However, you can manual verify with:
yarn hardhat verify --constructor-args arguments.ts DEPLOYED_CONTRACT_ADDRESS
To check linting / code formatting:
yarn lint
or, to fix:
yarn lint:fix