Solidity Template

This template has been forked fom https://github.com/amanusk/hardhat-template (MIT license).

It includes an example of how to write an adapter for interacting with Ren's Gateway contracts, and a test file which sets up RenJS with the local contracts.

Notes

If you are replicating this set-up in an existing repository, here's some things to note:

• The contract GatewayFactory used in the tests requires the following hardhat config in the hardhat network:

      allowUnlimitedContractSize: true,
      blockGasLimit: 0x1fffffffffffff,

• Currently, the contracts in @renproject/gateways-sol need to be compiled with Solidity 0.5.17, due to some of its dependencies. Hardhat has been configured to use two Solidity versions - "0.8.4" and "0.5.17".

• Due to these same dependencies, there are version clashes in the npm dependency tree which require some version overrides. If using yarn, add the following to package.json:

  "resolutions": {
      "@resolver-engine/imports-fs": "^0.3.3",
      "@ethersproject/bignumber": "^5.3.0"
  },

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The rest of the README is part of the amanusk/hardhat-template template.

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Usage

Pre Requisites

Before running any command, make sure to install dependencies:

$ yarn install

Compile

Compile the smart contracts with Hardhat:

$ yarn compile

Test

Run the Mocha tests:

$ yarn test

Deploy contract to netowrk (requires Mnemonic and infura API key)

npx hardhat run --network rinkeby ./scripts/deploy.ts

Validate a contract with etherscan (requires API ke)

npx hardhat verify --network <network> <DEPLOYED_CONTRACT_ADDRESS> "Constructor argument 1"

Added plugins

• Gas reporter hardhat-gas-reporter
• Etherscan hardhat-etherscan