Use this link: https://rollkit.dev/docs/tutorials/ethermint/
If it runs successfully, the screen will show the same below:
Get your PRIVATE_KEY to deploy your smartcontract by using the following script:
ethermintd keys unsafe-export-eth-key mykey --keyring-backend test
The output will look like:
I use Hardhat to write smart contract, deploy, run tests, and debug your code.
Follow the script below to:
mkdir Celestia-NFT-Collection
cd Celestia-NFT-Collection
mkdir hardhat-tutorial
cd hardhat-tutorial
npm init --yes
npm install --save-dev hardhat
Install some dependencies:
npm install --save-dev @nomicfoundation/hardhat-toolbox
npm install @openzeppelin/contracts
I wrote a Whitelist smartcontract and deployed it for first 30 users to sign and get whitelisted.
My Contract: 0x3937629E2Ff82eE9F44835077885f9013f5dE4C5
You can see two of this repo for more informations:
https://github.com/DuyVo96/Whitelist-Contract
https://github.com/DuyVo96/Whitelist-UI
The link of UI: https://whitelist-ui-six.vercel.app/
Cause I deployed this contract so now just create interface for this IWhitelist.sol, detail in repo below:
https://github.com/DuyVo96/Celestia-nft-collection-contract/blob/master/contracts/IWhitelist.sol
Create CelestiaNft.sol contract mint the NFT:
- Total supply is 30 NFT.
- Only deployer can start the period of mint.
- Mint price is: 0.01 CTE.
- Whitelist can only mint in 5 minutes after deployer start.
- The whitelist address from IWhitelist.sol will mint first, if the whitelist mint < 30, the NFT left will move to public mint after 5 minutes.
Detail of contract: https://github.com/DuyVo96/Celestia-nft-collection-contract/blob/master/contracts/CelestiaNft.sol
Create a .env to put your PRIVATE_KEY and HTTP_URL,PRIVATE_KEY is the key of address you export above when start Ethermint, HTTP_URL is such as [HTTP_URL](http://149.102.158.186:8545), 149.102.158.186 is my light node ip and 8545 is the port, make sure to replace with your own.
Install dotenv:
npm install dotenv
Your .env file will look like:
HTTP_URL="rpc"
PRIVATE_KEY="add-the-private-key-here"
Create a constants folder with index.js in it like this one:
https://github.com/DuyVo96/Celestia-nft-collection-contract/blob/master/constants/index.js
Write deploy.js:
https://github.com/DuyVo96/Celestia-nft-collection-contract/blob/master/scripts/deploy.js
Set up Ethermint network in hardhat.config.js:
https://github.com/DuyVo96/Celestia-nft-collection-contract/blob/master/hardhat.config.js
In the terminal run this following script to compile a deploy:
npx hardhat compile
npx hardhat run scripts/deploy.js --network ethermint
My Contract: 0xd401068fE1822E293Fff936320Ed90832CB160dD
The output in terminal will look like:
Save this address to use on UI part.
In terminal now back to Celestia-NFT-Collection root and create a Nextjs app:
npx create-next-app@latest
Go to this app and run:
npm install web3modal
npm install ethers@5
Replace your index.js with the file below:
https://github.com/DuyVo96/CELESTIA-NFT-COLLECTION/blob/main/pages/index.js
Create a constants folder with index.js in it like this one:
https://github.com/DuyVo96/CELESTIA-NFT-COLLECTION/blob/main/constants/index.js
abi and NFT_CONTRACT_ADDRESS from contract that we deployed above.
Do the same with Home.module.css:
https://github.com/DuyVo96/CELESTIA-NFT-COLLECTION/blob/main/styles/Home.module.css
Start your app:
npm run dev
- Set up your metamask with Ethermint network:
- Network Name: Ethermint
- New RPC URL: http://localhost:8545 or https://your.custom.ip.address:port
- Chain ID: 9000
- Currency symbol: CTE
- Go this link to register to be whitelisted
https://whitelist-ui-six.vercel.app/
Connect your wallet and click JOIN THE WHITELIST button
Confirm tx and waiting:
After tx confirmed the screen will look like:
You can try with another accounts cause total whitelist is 30 slots.
I tried with another 2 wallets and the number increased to 3 joined the Whitelist.
- Go this link to mint NFT
Connect with the wallet that you used to deployed contract in last part to START PRESALE
Confirm tx and waiting:
Now the whitelist addresses can mint NFT:
I start to mint:
Now you can add Contract address and tokenId to metamask to see your NFT infor:
After 5 minutes public will start and everyone can mint untill 30 slots are over 🔥🔥🔥🔥🔥🔥🔥🔥🔥