Smart Contract deployment on public EVM networks

This repository provides practical example to deploy Smart Contracts in different public EVM networks, following different approaches:

Prerequisites

Node JS installed: https://nodejs.org/

DESIRED_NETWORK variable can be:

• ethereum_goerli_testnet
• polygon_mumbai_testnet
• binance_bsc_testnet

These networks are specified in networks section in both files (you can add new ones):

• Truffle/truffle-config.js
• Hardhat/hardhat.config.ts

If you have problems with RPC URLs (they change from time to time) check last ones here: https://rpc.info/

Testnet networks

Ethereum 2.0 (POS) testnet (Sepolia )

• Network: Ethereum Goerli
• New RPC URL: https://sepolia.infura.io/v3/
• Chain ID: 11155111
• Currency symbol: SepoliaETH
• Block explorer: https://sepolia.etherscan.io/
• Faucet: https://sepoliafaucet.com/

Polygon Mumbai (testnet)

• Network: Polygon Mumbai
• New RPC URL: https://rpc-mumbai.maticvigil.com/
• Chain ID: 80001
• Currency symbol: MATIC
• Block explorer: https://mumbai.polygonscan.com/
• Faucet: https://faucet.polygon.technology/

More info here: https://wiki.polygon.technology/docs/develop/metamask/config-polygon-on-metamask/

Binance Smart Chain (testnet) information

• Network: Smart Chain - Testnet
• New RPC URL: https://data-seed-prebsc-1-s1.binance.org:8545/
• Chain ID: 97
• Currency symbol: BNB
• Block explorer: https://testnet.bscscan.com
• Faucet: https://testnet.bnbchain.org/faucet-smart

More info here: https://academy.binance.com/en/articles/connecting-metamask-to-binance-smart-chain

Ethereum 1.0 Goerli (POW) testnet [To be deprecated]

• Network: Ethereum Goerli
• New RPC URL: https://goerli.infura.io/v3/
• Chain ID: 5
• Currency symbol: GoerliETH
• Block explorer: https://goerli.etherscan.io/
• Faucet: https://goerlifaucet.com/

Truffle

Installation

npm install -g truffle
cd Truffle
npm i

Deployment

truffle compile
truffle migrate --network DESIRED_NETWORK

Verification

truffle run verify DEPLOYED_CONTRACT_NAME@DEPLOYED_CONTRACT_ADDRESS --network DESIRED_NETWORK

Example with Goerli Network

truffle compile
truffle migrate --network ethereum_goerli_testnet
truffle run verify Notarization@0x... --network ethereum_goerli_testnet

Hardhat

Installation

cd Hardhat
npm install

Deployment

npx hardhat clean
npx hardhat compile
npx hardhat run ./scripts/deploy.ts --network DESIRED_NETWORK

Verification

npx hardhat verify --network DESIRED_NETWORK DEPLOYED_CONTRACT_ADDRESS

Example with Goerli Network

npx hardhat run ./scripts/deploy.ts --network ethereum_goerli_testnet
npx hardhat verify --network ethereum_goerli_testnet 0x...

Remix

Metamask: Network selection

You have to select your preffered network form Metamask.

Remix: Deployment (left side)

Just click on the "Deploy" button when your Smart Contract is ready.

Metamask: Confirm transaction

You have to confirm the transaction of the Smart Contract deployment.

Functions overview in Remix (left side)

You will see an overview of the public/external functions of your already deployed Smart Contract.

Functions execution in Remix (left side)

You can directly execute your Smart Contract functions from the Remix web IDE for test purposes.