Contract template

Lock up after issuing tokens

noted

Place the contract in accordance with the method of issuing ERC20 tokens, record the contract address, and then execute the placement script of issuing first and then locking up.

Instead of doing this in practice, you can replace the code that instantiates the contract with the contract address, and then transfer the token to the lock-in contract address via an externally called method.

To run this example, the deployed ERC20 contract is directly instantiated in the deployed script.

Contract Document: ERC20WithTokenTimelock.sol (opens new window)

Test script: ERC20WithTokenTimelock.js (opens new window)

Deployment script: 8_deploy_IssueTokenBeforeTimelock.js (opens new window)

define the following variables when deploying the contract

IERC20 token            //ERC20 token address
address beneficiary     //can be another account than the sender
uint256 releaseTime     //Unlock timestamp

Calling methods (omitted ERC20 call method)

token() public view returns (IERC20)            //Returns ERC20 contract
beneficiary() public view returns (address)     //Return beneficiary's address
releaseTime() public view returns (uint256)     // Returns the unlock time
release() public                                //Triggers the unlock, which can be called by anyone but can only be released to the beneficiary