Gravis Evervoid Staking ERC20

This contract provides ERC20 token stacking for the award in ERC20 tokens. ERC20 Stacking URL: https://evervo.id/resources/grvx-staking/

Deployment And Configuration

Compile

Copy .env.example to a new file called .env and fill the values in it.

npx hardhat compile

Test

npx hardhat test

Deploy GRVX Staking

Copy file example.env to .env and replace empty address variables with correct values. Then run:

npx hardhat run scripts/deploy-grvx.ts --network [Your Network]

GRVX Staking

This contracts allows users to stake GRVX and get FUEL rewards.

Stake

This function is used to stake GRVX to contract. Approval for staked amount should be given in prior.

function stake(uint256 amount)

Parameters

• uint256 amount - amount of GRVX (as wei) being staked

Unstake

This function is used to unstake previously staked GRVX. Amount should not exceed stake size. Rewards are collected separately.

function unstake(uint256 amount)

Parameters

• uint256 amount - amount of GRVX (as wei) being unstaked

Claim Reward

This function is used to claim accumulated reward of the user.

function claimReward()

Reward Of

This view function returns current reward amount for a given user.

function rewardOf(address account) public view returns (uint256)

Parameters

• address account - address to get reward for

Stake Of

This view function returns current stake size for a given user (as wei)

function stakeOf(address account) public view returns (uint256)

Parameters

• address account - address to get stake for

Set Reward Per Block

This function sets amount of fuel distributed per block. Can only be called by owner.

function setRewardPerBlock(uint256 rewardPerBlock_) external onlyOwner

Parameters

• uint256 rewardPerBlock_ - amount of FUEL (as wei) distributed between stakers per block