Created
September 2, 2021 00:22
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Get prices from the NEST Oracle and then provide the prices for free
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| import 'https://raw.githubusercontent.com/NEST-Protocol/NEST-Oracle-V3.5/main/contracts/iface/INestQuery.sol'; | |
| pragma solidity ^0.6.12; | |
| contract NESTBootleg { | |
| struct Price { | |
| uint ethAmount; | |
| uint erc20Amount; | |
| uint blockNum; | |
| } | |
| mapping(address => mapping(uint => Price)) prices; | |
| INestQuery iNestQuery; | |
| constructor(_nestQueryAddress) { | |
| iNestQuery = INestQuery(_nestQueryAddress); | |
| } | |
| function updatePrice(address token) public payable { | |
| (uint ethAmount, uint erc20Amount, uint blockNum) = iNestQuery.query(token, msg.sender); | |
| Price newPrice = Price(ethAmount, erc20Amount, blockNum); | |
| prices[token][blockNum] = newPrice; | |
| } | |
| function getPrice(address token, uint blockNum) public view returns(Price) { | |
| return prices[token][blockNum]; | |
| } | |
| } |
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