fix: fixed low level call and hardhat fork issues

VGabriel45 · Aug 19, 2024 · 201762e · 201762e
1 parent 58b50c8
commit 201762e
Show file tree

Hide file tree

Showing 5 changed files with 13 additions and 16 deletions.
diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -7,6 +7,7 @@
   "dependencies": {
     "@nomicfoundation/hardhat-chai-matchers": "^2.0.6",
     "@nomicfoundation/hardhat-ethers": "^3.0.5",
+    "@nomicfoundation/hardhat-network-helpers": "^1.0.11",
     "@openzeppelin/contracts": "^5.0.0",
     "@openzeppelin/contracts-upgradeable": "^5.0.0",
     "@typechain/ethers-v6": "^0.5.1",

diff --git a/scripts/arbitrage.ts b/scripts/arbitrage.ts
@@ -1,17 +1,19 @@
-import { ethers, parseEther } from "ethers"
+import { ethers, parseEther, parseUnits } from "ethers"
 import { Protocols, Routers, dodoV2Pool, factories } from "../constants"
 import { ERC20Token } from "../constants/tokens"
 import { getPriceInUSDC } from "../utils/getPriceInUSDC"
 import flashloan from "../artifacts/contracts/FlashLoan.sol/Flashloan.json";
 import { FlashLoanParams } from "../types";
 import { findRouterByProtocol } from "../utils/findRouterByProtocol";
 import { executeFlashloan } from "./executeFlashloan";
+import * as helpers from "@nomicfoundation/hardhat-network-helpers";
 
 const MIN_PRICE_DIFF = 1000000 // $10;
 
 async function main() {
-    // WETH / USDC POOLS
     const checkArbitrage = async () => {
+        // This line is a temporary fix for https://github.com/NomicFoundation/hardhat/issues/5511
+        await helpers.mine()
 
         const provider = new ethers.JsonRpcProvider(process.env.PROVIDER_URL!);
 
@@ -49,20 +51,19 @@ async function main() {
             // execute arbitrage flashloan
             const wallet = new ethers.Wallet(process.env.PRIVATE_KEY!, provider);
             const Flashloan = new ethers.Contract(process.env.FLASHLOAN_ADDRESS!, flashloan.abi, provider);
-
+            
             const params: FlashLoanParams = {
                 flashLoanContractAddress: Flashloan.target.toString(),
                 flashLoanPool: dodoV2Pool.WETH_USDC,
-                loanAmount: parseEther("1"), // Loaning 1 WETH
-                loanAmountDecimals: 18,
+                loanAmount: parseUnits("0.0001", 18), // Loaning 0.0001 WETH 
                 hops: [
                     {
                         protocol: max.protocol,
                         data: ethers.AbiCoder.defaultAbiCoder().encode(
                             ["address"],
                             [findRouterByProtocol(min.protocol)]
                         ),
-                        path: [ERC20Token.USDC?.address, ERC20Token.WETH?.address],
+                        path: [ERC20Token.WETH?.address, ERC20Token.USDC?.address],
                         amountOutMinV3: 0,
                         sqrtPriceLimitX96: 0
                     },
@@ -72,7 +73,7 @@ async function main() {
                             ["address"],
                             [findRouterByProtocol(min.protocol)]
                         ),
-                        path: [ERC20Token.WETH?.address, ERC20Token.USDC?.address],
+                        path: [ERC20Token.USDC?.address, ERC20Token.WETH?.address],
                         amountOutMinV3: 0,
                         sqrtPriceLimitX96: 0
                     },

diff --git a/test/index.test.ts b/test/index.test.ts
@@ -52,7 +52,6 @@ describe("DODO Flashloan", () => {
             flashLoanContractAddress: Flashloan.target.toString(),
             flashLoanPool: dodoV2Pool.WETH_ULT,
             loanAmount: ethers.parseEther("0.1"),
-            loanAmountDecimals: 18,
             hops: [
                 {
                     protocol: Protocols.QUICKSWAP,

diff --git a/types/index.ts b/types/index.ts
@@ -5,7 +5,6 @@ export type FlashLoanParams = {
     flashLoanContractAddress: string;
     flashLoanPool: string;
     loanAmount: number | ethers.BigNumberish;
-    loanAmountDecimals: number;
     hops: Hop[];
     gasLimit: number;
     gasPrice: number | bigint;