Work with EVM-compatible chains

Tronbox supports deploying contracts to EVM-compatible blockchains.

TIP

NOTE: This feature requires TronBox v4.0.0 or later.

Configuration file

The configuration file for EVM related configurations is named tronbox-evm-config.js and is located in the root directory of the project directory. The file content is as follows:

JavaScript

module.exports = {
  networks: {
    bttc: {
      privateKey: process.env.PRIVATE_KEY_BTTC,
      fullHost: 'https://rpc.bt.io',
      gas: 8500000, // Gas sent with each transaction
      gasPrice: '500000000000000', // 500,000 gwei (in wei)
      network_id: '1'
    },
    development: {
      privateKey: process.env.PRIVATE_KEY_DEV,
      fullHost: 'http://127.0.0.1:8545',
      network_id: '*'
    }
  },
  compilers: {
    solc: {
      version: '0.8.7',
      // An object with the same schema as the settings entry in the Input JSON.
      // See https://docs.soliditylang.org/en/latest/using-the-compiler.html#input-description
      settings: {
        // optimizer: {
        //   enabled: true,
        //   runs: 200
        // },
        // evmVersion: 'istanbul',
        // viaIR: true,
      }
    }
  }
};

Compile contracts

To deploy to an EVM-compatible blockchain, you must compile your contracts using an EVM solidity compiler. Run the following command:

Terminal

tronbox compile --evm

When you add the --evm flag to the compile command, the solc version configured in the tronbox-evm-config.js file will be used for compilation.

Deploy contracts

To deploy to an EVM-compatible blockchain such as the BTTC network, configure your network settings in tronbox-evm-config.js and run the following command:

Terminal

tronbox migrate --network bttc --evm

When you add the --evm flag to the migrate command, the network settings configured in the tronbox-evm-config.js file will be used for deployment.

For details on the deployment script, pleaase see Deploy contracts .

Test contracts

To run tests on an EVM-compatible blockchain, use the following command:

Terminal

tronbox test --evm

When you add the --evm flag to the test command, the network settings configured in the tronbox-evm-config.js file will be used for testing.

For more information about the test script, please see Testing contracts .