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Remix

Intro​

Remix is a web-based Integrated Development Environment (IDE) designed for developing, testing, and deploying smart contracts on the Ethereum Network. This guide will show you how to use Remix in conjunction with MetaMask on the Sapphire Network.

info

For comprehensive details about Remix's features, consult the Remix documentation.

Prerequisites​

  1. Install the MetaMask browser extension
  2. Configure your networks:
    • Add Sapphire Mainnet or Testnet to MetaMask using the Add to MetaMask button on our network page
    • (Optional) Configure local network settings if you're using the Sapphire localnet

Getting Started​

When you first launch Remix, it creates a default project structure. Navigate to the contracts folder and open 1_Storage.sol to begin.

The initial example project in Remix - Ethereum IDE

Contract Compilation​

  1. Navigate to the Solidity Compiler tab

  2. Configure the compiler settings:

    • Compiler version: 0.8.24
    • EVM version: paris (found under Advanced Configuration)

  3. Click Compile 1_Storage.sol

Compiler Version

The Sapphire uses the Rust Ethereum EVM. This implementation is compatible with Solidity versions up to 0.8.24. However, it does not yet support some transaction types introduced in Solidity 0.8.25, such as those mentioned in rust-ethereum/evm#277, pending release of the next version.

EVM Version

EVM versions after paris (shanghai and upwards) include the PUSH0 opcode which isn't supported on Sapphire.

Solidity compiler tab

Contract Deployment​

  1. Open the Deploy and Run Transactions tab.
  2. Select Injected Web3 as environment.
  3. Accept in MetaMask the account connection to Remix.

MetaMask connection confirmation

  1. Click Deploy.
  2. Review and confirm the transaction in MetaMask.

Metamask transaction confirmation

If everything goes well, your transaction will be deployed using the selected account in the MetaMask and the corresponding Sapphire Network.

Working with Confidential Features​

Note that Remix operates without a Sapphire client, meaning transactions and queries are unencrypted and unsigned by default. To make use of Sapphire's confidential features, refer to our Quickstart Tutorial.

Should you have any questions, do not hesitate to share them with us on the #dev-central Discord channel.