masaun / geyser-on-polygon

Geyser's smart contract integration with Polygon (Matic)

Geyser on Polygon

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【Introduction of the Geyser on Polygon】

• This repo is the Geyser's smart contract integration with Polygon (Matic) network.
  • Geyser ( https://www.gysr.io/ ) is an open platform for yield farming and token distribution.
  • But, that is only deployed on Mainnet. Therefore, users need to pay high gas fees and wait for long time to finalize transactions.
  • To solve this issue from user perspective, I try to do that Geyser's smart contract works on Polygon. (Polygon mumbai testnet)

 

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【Workflow】

• Diagram of workflow

 

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【Remarks】

• Version for following the Geyser smart contract
  • Solidity (Solc): v0.6.11
  • Truffle: v5.1.60
  • web3.js: v1.2.9
  • openzeppelin-solidity: v3.2.0
  • 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_testnet

【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/geyser-on-polygon/blob/main/.env.example

• ③ In advance, Please check MATIC token balance of executor'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 include deployment of smart contracts on Polygon)

npm run script:Geyser

【Demo】

• Demo video that script above is executed
  https://youtu.be/nwyNV8b0XyI

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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

• Geyser
  • Website: https://www.gysr.io/
  • Doc: https://www.gysr.io/docs
  • Smart contract：https://github.com/gysr-io/core