Deploy Contract
Opera utilizes a major part of the Ethereum Virtual Machine (EVM) in the backend. Smart contracts are written in Solidity and they can function on Opera as they do on Ethereum.
To deploy a smart contract, you send an Opera transaction containing your bytecode without specifying any recipients. You will need FTM tokens to pay the gas fees when deploying smart contracts. To request your testnet FTMs on the testnet, you can use the testnet faucet.
After the contract is deployed, it will be available to all users of the Opera network. Smart contracts have an Opera address like other accounts.
Requirements
Bytecode (compiled code) of your smart contract
FTM for gas costs
Deployment script/plugin
Access to an Opera node, either by running your own node or API access to a node
Example of Smart Contract Deployment
If you are deploying a smart contract on Opera for the first time, you may take a look at the example given here.
The repository contains the materials to deploy a smart contract using Hardhat and Truffle tools. Instructions to work with the mainnet and testnet are included.
Deployment Using Remix
If you want to deploy a smart contract using Remix to the Opera testnet, you just need to connect MetaMask to the Opera Testnet and choose Injected Provider - MetaMask in the Environment option.
You can see that the network ID is set to 4002, which is the Opera testnet's chain ID. When you deploy the contract, it will be deployed to the Fantom testnet.
Additional Resources
Tools
Hardhat: Development environment for editing, compiling, debugging, and deploying your smart contracts using the EVM.
Truffle: Development environment, testing framework, and asset pipeline for blockchains using the EVM.
Remix: IDE that’s used to write, compile, debug, and deploy Solidity code in your browser.
Solidity: Solidity is an object-oriented, high-level programming language for implementing smart contracts.
OpenZeppelin: OpenZeppelin Contracts helps you minimize risk by using battle-tested libraries of smart contracts for Ethereum and other blockchains.
thirdweb: Complete Web3 development framework that provides everything you need to connect your applications and games to decentralized networks.