Transfer ERC20 on deploy (truffle migrate)

Support
2

Hi @poshdan,

I find it much easier to read migrations using async/await, so I recommend using that.

I created a simple example (based on Example on how to use ERC20 token in another contract)

SimpleToken.sol

// contracts/SimpleToken.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.2;

import "@openzeppelin/contracts/GSN/Context.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";

/**
 * @title SimpleToken
 * @dev Very simple ERC20 Token example, where all tokens are pre-assigned to the creator.
 * Note they can later distribute these tokens as they wish using `transfer` and other
 * `ERC20` functions.
 */
contract SimpleToken is Context, ERC20 {

    /**
     * @dev Constructor that gives _msgSender() all of existing tokens.
     */
    constructor () public ERC20("SimpleToken", "SIM") {
        _mint(_msgSender(), 10000 * (10 ** uint256(decimals())));
    }
}

TokenReceiver.sol

// contracts/TokenReceiver.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.2;

contract TokenReceiver {
}

2_deploy.js

// migrations/2_deploy.js
const SimpleToken = artifacts.require('SimpleToken');
const TokenReceiver = artifacts.require('TokenReceiver');

module.exports = async function (deployer) {
  await deployer.deploy(SimpleToken);
  const token = await SimpleToken.deployed();

  await deployer.deploy(TokenReceiver, token.address);
  const receiver = await TokenReceiver.deployed();

  await token.transfer(receiver.address, "100000000");
};

Truffle Develop

Deploy the contracts using migrations and then check the balance manually

$ npx truffle develop
Truffle Develop started at http://127.0.0.1:9545/
...

truffle(develop)> migrate

Compiling your contracts...
===========================
...

1_initial_migration.js
======================

   Deploying 'Migrations'
   ----------------------
...

2_deploy.js
===========

   Deploying 'SimpleToken'
   -----------------------
...
   Deploying 'TokenReceiver'
   -------------------------
...

truffle(develop)> token = await SimpleToken.deployed()
undefined
truffle(develop)> receiver = await TokenReceiver.deployed()
undefined
truffle(develop)> (await token.balanceOf(receiver.address)).toString()
'100000000'