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Deploy Contracts

This guide explains how to deploy a smart contract to the Artela EVM++ chain using Remix. Follow these steps to ensure a smooth deployment.

Prerequisites​

Before starting, make sure you have:

  1. MetaMask Wallet

    • Installed and configured.
    • Connected to the Artela EVM++ chain with the correct RPC endpoint.

    Example configuration:

    • Network Name: Artela EVM++
    • RPC URL: https://rpc.artela.network
    • Chain ID: 11820 (Note that the chain ID of the artela EVM++ chain is the middle part of the chain ID in the configured cosmos format, such as artroll_11820-1)
    • Currency Symbol: ART

  2. Remix IDE

  3. Test Funds

    • Acquire ART tokens for gas fees via the Artela faucet or other sources.

Step 1: Write or Import Your Contract​

  1. Open Remix IDE.
  2. In the "File Explorer" panel, create a new file or import an existing contract. For example, a simple HelloWorld.sol contract:
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract HelloWorld {
    string public message;

    constructor(string memory _message) {
        message = _message;
    }

    function updateMessage(string memory _newMessage) public {
        message = _newMessage;
    }
}
  1. Save the file.

Step 2: Compile the Contract​

  1. Go to the "Solidity Compiler" plugin in Remix.
  2. Select the appropriate compiler version (e.g., 0.8.0) to match your contract's pragma.
  3. Click "Compile HelloWorld.sol."
    • Ensure there are no errors before proceeding.

Step 3: Connect MetaMask to Remix​

  1. Open the "Deploy & Run Transactions" plugin in Remix.
  2. Under the "Environment" dropdown, select "Injected Provider - MetaMask."
  3. MetaMask will prompt you to connect to Remix. Approve the connection.

Step 4: Deploy the Contract​

  1. Verify the "Account" dropdown in Remix shows your MetaMask account.
  2. Select the compiled contract from the "Contract" dropdown (e.g., HelloWorld).
  3. Provide any constructor arguments in the input field, if required.
    • For the HelloWorld contract, you can enter "Hello, Artela!".
  4. Click "Deploy."

MetaMask will display a transaction confirmation dialog. Review the details and confirm the transaction.

Step 5: Verify Deployment​

  1. After deployment, the contract address will appear in the Remix "Deployed Contracts" section.
  2. Copy the contract address and verify it using Artela's blockchain explorer (e.g., Blockscout).

Step 6: Interact with the Contract​

  1. In Remix, expand the deployed contract.
  2. Use the available functions to interact with the contract. For example:
    • Call message() to view the current message.
    • Call updateMessage("New message") to update the message.

Troubleshooting​

  • Gas Errors: Ensure your wallet has enough ART tokens.
  • Compilation Errors: Check for syntax or version mismatches in the Solidity code.
  • RPC Errors: Verify your MetaMask network configuration matches the Artela EVM++ settings.