NFT Badge for staking

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【Introduction of the NFT Badge for staking】

• This repo is the smart contract for NFT Badge for staking.
  • This smart contract give a staker a NFT depends on staking period (= vesting period ) which a staker chose.
    • Staking period that a staker can choose are 3 options: 3 months, 6 months, 1 year)
    • Each NFT works as a proof of deposit and represents staking period (= vesting period ) which a staker chose.
    • A staker can not unstake until chosen-period. (When a staker try to unstake, smart contract check whether staking period is passed or not by a NFT which a staker has)

• This smart contract has been deployed on Polygon (mumbai).
  • By deploying on Polygon, a staker can reduce cost for each transactions and get a higher speed transaction.

 

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【Workflow】

• Diagram of workflow

 

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【Remarks】

• Version
  • Solidity (Solc): v0.6.11
  • Truffle: v5.1.60
  • web3.js: v1.2.9
  • @openzeppelin/contracts: v3.4.0
  • ganache-cli: v6.9.1 (ganache-core: 2.10.2)

 

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【Setup】

① Install modules

• Install npm modules in the root directory

npm install

② Compile contracts

• on Polygon (Matic) mumbai testnet

npm run compile:polygon_mumbai

【Script for demo】on Polygon (Matic) mumbai testnet

• ① Get API-key from Infura
  https://infura.io/

• ② Add .env to the root directory.

  • Please reference how to write from .env.example . (Please write 3 things below into .env )
    • MNEMONIC (Mnemonic)
    • INFURA_KEY (Infura key)
    • DEPLOYER_ADDRESS (Deployer address)
      https://github.com/masaun/Something-on-polygon/blob/main/.env.example

• ③ In advance, Please check MATIC token balance of executor's (user's) wallet address .
  • Idealy, MATIC tokens balance is more than 1 MATIC .
  • Matic fancet: https://faucet.matic.network/ (Please select Mumbai network)

• ③ Execute script on Polygon (Matic) mumbai testnet (※ This script uses deployed-contract addresses on Polygon mumbai)

npm run script:StakingManager

【Deployed-contract addresses】

• Smart contract addresses below are deployed on Polygon mumbai testnet:
  • LP Token: 0xCB9e421b1bF2f20E3EEbd3d16A8F44D50B7f56ad
  • Reward Token: 0xD68cE6B14d4E5f8ed28F6eb9b92A63f48FFDc0a7
  • StakingNFTBadgeFor3Months: 0x19bC3A74BB8de091fE4a76af093b031395cE17f2
  • StakingNFTBadgeFor6Months: 0xe5273E5D1bf82e60125968B6C9c3476A70E1FCaF
  • StakingNFTBadgeFor1Year: 0xBF3463C0def89691d765aB95d456402463310Ef3
  • StakingPool: 0xB8faeCcdF3Ce5Dc470720B212b7056113dbA386f
  • StakingManager: 0x404735352a45fc40fb1d10316e037219e1ADe25B
  • Fancet: 0xB786Ee2f65C6fec7568CA565Be9958713Ac24C18

【Demo】

• Demo video that script above is executed
  https://youtu.be/0APV4cNICDc

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【References】

• Polygon (Matic)
  • Website: https://polygon.technology/
  • Doc: https://docs.matic.network/docs/develop/getting-started
  • MATIC fancet：https://faucet.matic.network/
  • Network setting for MetaMask：https://github.com/masaun/tokenized-carbon-credit-marketplace#setup-wallet-by-using-metamask
  • Polygon (Open Defi Hackathon)：https://gitcoin.co/issue/maticnetwork/matic-bounties/20/100025642