Name		Name	Last commit message	Last commit date
parent directory ..
contracts		contracts
src/types		src/types
tasks		tasks
CHANGELOG.md		CHANGELOG.md
LICENSE.md		LICENSE.md
README.md		README.md
hardhat.config.ts		hardhat.config.ts
package.json		package.json
tsconfig.json		tsconfig.json
tsconfig.prod.json		tsconfig.prod.json

README.md

Hifi Proxy Target

DSProxy target contract with stateless scripts.

The build artifacts can be browsed via unpkg.com.

Installation

With yarn:

$ yarn add @hifi/proxy-target

Or npm:

$ npm install @hifi/proxy-target

Usage

The node package that you just installed contains both Solidity and JavaScript code. The former is the smart contracts themselves; the latter, the smart contract ABIs and the TypeChain bindings.

Solidity

You will likely never need to interact with the smart contracts from Solidity. Though for the sake of completeness, here is a code snippet for how to do that:

// SPDX-License-Identifier: Unlicense
pragma solidity >=0.8.4;

import "@hifi/proxy-target/contracts/IHifiProxyTarget.sol";
import "@hifi/protocol/contracts/core/balance-sheet/IBalanceSheetV2.sol";

contract YourContract {
    // Find the address on https://docs.hifi.finance
    IHifiProxyTarget hifiProxyTarget = IHifiProxyTarget(0x...);

    function depositCollateral(
      IBalanceSheetV2 balanceSheet,
      IErc20 collateral,
      uint256 depositAmount
    ) external {
      hifiProxyTarget.depositCollateral(balanceSheet, collateral, depositAmount);
    }
}

JavaScript

This code snippet shows how to interact with a DSProxy contract that is already deployed. For guidance on how to deploy the DSProxy itself, refer to Maker's guide Working with DSProxy.

import { parseUnits } from "@ethersproject/units";
import { HifiProxyTarget__factory } from "@hifi/protocol/dist/types/factories/contracts/HifiProxyTarget__factory";

async function depositCollateral() {
  const signer = "..."; // Get hold of an ethers.js Signer
  const hifiProxyTargetFactory = new HifiProxyTarget__factory(signer); // Find the address on https://docs.hifi.finance
  const hifiProxyTarget = hifiProxyTargetFactory.attach("0x...");
  const balanceSheet = "0x...";
  const collateral = "0x...";
  const depositAmount = parseUnits("100", 18);
  const accountLiquidity = await hifiProxyTarget.depositCollateral(balanceSheet, collateral, depositAmount);
}

Deployment