Deploying Multiple Contracts with Truffle

Question

Hoping someone can answer a couple questions regarding deploying multiple contracts with truffle. 1.)I can create one contract in the the deploy, something like 2_deploy_contracts.js and all the contracts i am deploying can be deployed using this one file or did i need multiple deploy files?

2.)Do i also need to deploy the interface contracts and other contracts I've Imported into my contracts, like openzeppelin contracts i am using? I am guessing any interfaces/imported contracts will automatically get deployed when i deploy my main contracts right? So i don't need to actually deploy them in the deploy file?

3.)Many of the contracts i have written have constructors, so in the 2_deploy_contracts.js file i need to include everything i am passing into the constructor for each of the contracts right?

Does anyone have an examples, a github link, or anything else that shows an example of a deploy file that is written to deploy multiple contracts with Truffle? I am particularly interested in seeing how this is written when you are deploying contracts that have constructors you need to pass variables to.

Answer 1

1. You don't need multiple files, you can use only one. Here's an example of a multi-contracts deployment:

const erc20_token_template = artifacts.require("./ERC20TokenTemplate.sol");
const erc20_token_vendor = artifacts.require("./ERC20TokenVendor.sol");
const erc20_token_dealer = artifacts.require("./ERC20TokenDealer.sol");

module.exports = function(deployer) {
    var name = "coins";
    var symbol = "MTK"
    var totalSupply = "100000000000000000000";
    deployer.deploy(erc20_token_template, name, symbol, totalSupply)
    .then(() => deployer.deploy(erc20_token_vendor, erc20_token_template.address, 5));
    deployer.deploy(erc20_token_dealer, erc20_token_template.address)
};

2. You don't deploy interfaces. You should compile them for using their ABI to access the deployed contracts.

3. See the example, it's an actual code from one of my projects :)