nft.test.js, Make sure your accounts have balances. Now in url we add the url with the project id provided by Infura and in accounts we add the private address of our wallet. # What. Twitter: https://twitter.com/manelferreira_. Give Hardhat a star on Github if you're enjoying it! Why does the narrative change back and forth between "Isabella" and "Mrs. John Knightley" to refer to Emma's sister? //Using already intilized contract facotry object with our contract, we can invoke deploy function to deploy the contract. I got the same error. https://github.com/NomicFoundation/hardhat, // This is a sample Hardhat task. Taught myself how to code in 2021 building webXR projects. In this guide we'll explain how to do this in the Etherscan explorer, but there are other ways to verify a contract, for example with Sourcify. Hardhat is a development environment to compile, deploy, test, and debug your smart contract. You have successfully deployed Greeter Smart Contract. There's nothing new that needs to be done when compared to testing, given that when you're testing your contracts you're actually making a deployment to your development network. Token address: 0x5FbDB2315678afecb367f032d93F642f64180aa3, // Go to https://infura.io, sign up, create a new API key, // in its dashboard, and replace "KEY" with it, // Replace this private key with your Sepolia account private key, // To export your private key from Coinbase Wallet, go to, // Settings > Developer Settings > Show private key, // To export your private key from Metamask, open Metamask and, // go to Account Details > Export Private Key, // Beware: NEVER put real Ether into testing accounts, // Go to https://alchemy.com, sign up, create a new App in, // its dashboard, and replace "KEY" with its key, npx hardhat run scripts/deploy.js --network sepolia. Blockchain & Crypto enthusiast Congratulations! Here are the command lines to deploy with npm: If you use yarn, you can configure your package.json file as follows for a faster development process: You can then deploy with yarn with these command lines: If your deployment has been successful, you will see something like this in your console: Additionally, you can find your deployed smart contracts on their block explorer here: Im an undergrad student developer at the University of Washington, Bothell. Ethereum networks value essentially comes from its EVM architecture which are used by a ton of dependent and independent networks who make use of the open source code and customize it to fit their needs. Deployment to a testnet or mainnet Setup environment variabltes You'll want to set your SEPOLIA_RPC_URL and PRIVATE_KEY as environment variables. These testnets provide shared staging environments that do a good job of mimicking the real world scenario without putting real money at stake, and Ethereum has several, like Sepolia and Goerli.