Foundry Setup for Metis

Foundry is a fast and powerful framework for Ethereum development, written in Rust. It’s great for developers who prefer more control and speed in their development workflows.

1. Install Foundry: Install Foundry by running the following command in your terminal:

curl -L https://foundry.paradigm.xyz | bash

Then, initialize Foundry:

foundryup

1. Create a Foundry Project: Start a new project:

forge init my-foundry-project

1. Configure Foundry for Metis: You will need to edit the foundry.toml file to include Metis network details:

[profile.default]
rpc_endpoints = { 
    metis = "https://andromeda.metis.io/?owner=1088",  # Andromeda Mainnet
    sepolia = "https://sepolia.metisdevops.link"  # Sepolia Testnet
}

1. Compile and Deploy: Compile your contracts:

forge build

Deploy using Foundry:

forge create --rpc-url https://andromeda.metis.io/?owner=1088 --private-key PRIVATE_KEY src/MyContract.sol:MyContract

This section is for developers who are ready to deploy smart contracts or decentralized applications on the Metis network. The guides provided will walk you through deploying contracts via different tools like Remix, Hardhat, and Truffle, offering flexibility based on your preferred development environment.

Set Up Your Environment

Choose Development Framework

Hardhat Setup for Metis

Hardhat is a popular Ethereum development environment that enables you to compile, deploy, test, and debug your smart contracts easily.

1. Install Hardhat: First, make sure you have Node.js installed. Then, in your project directory, run:

npm install --save-dev hardhat

1. Create a Hardhat Project: Initialize a new Hardhat project:

npx hardhat

Choose "Create a basic sample project" and follow the prompts.

1. Configure Hardhat for Metis: Edit the hardhat.config.js file to connect to the Metis network (either Andromeda Mainnet or Sepolia Testnet):

require("@nomiclabs/hardhat-waffle");

module.exports = {
  solidity: "0.8.4",
  networks: {
    metis: {
      url: "https://andromeda.metis.io/?owner=1088",  // Andromeda Mainnet
      accounts: [`0x${PRIVATE_KEY}`],  // Replace with your private key
    },
    sepolia: {
      url: "https://sepolia.metisdevops.link",  // Sepolia Testnet
      accounts: [`0x${PRIVATE_KEY}`],  // Replace with your private key
    },
  },
};

1. Compile and Deploy: Compile your contract:

npx hardhat compile

Deploy it with a simple script:

npx hardhat run scripts/deploy.js --network metis

Once you've connected to Metis and obtained your testnet tokens, you're ready to set up your development environment. Metis supports multiple frameworks for smart contract development, allowing you to choose the one that fits your workflow. Here, we’ll guide you through setting up Hardhat, Truffle, and Foundry for development on the Metis network.

The Metis protocol consists of several contracts that are deployed on some specific addresses. The contracts have been deployed on L2, L1, Andromeda, and Stardust testnet. You can use the etherscan explorer to see full details about deployed contract addresses. The Metis Github page shows all the deployed contract addresses.

1. Install MetaMask and Connect to Metis

MetaMask is the most commonly used wallet to interact with dApps on networks like Metis. Here’s how to set it up:

Install Metamask

• Download and install the MetaMask extension for your browser.

• Create a new wallet or import an existing wallet using your seed phrase.

Add Metis Network to MetaMask:

To connect to the Metis Andromeda (Mainnet) or Sepolia (Testnet) network, you’ll need to manually add it to MetaMask.

MetaMask will now be connected to the Metis network.

2. Get Testnet Tokens (Sepolia)

If you’re developing on the Metis Sepolia Testnet, you’ll need sMetis tokens to test your transactions and smart contracts.

1. Visit the Metis Faucet:

   • You can get free testnet tokens by visiting the official Metis Sepolia Testnet Faucet