feat: swap add (WIP)

Author: gkfyr

package-lock.json

@@ -9,8 +9,9 @@
   "license": "ISC",
   "description": "",
   "dependencies": {
-    "@thanpolas/univ3prices": "^3.0.2",
     "@uniswap/v3-core": "^1.0.1",
+    "@uniswap/v3-periphery": "^1.4.4",
+    "dotenv": "^16.4.5",
     "ethers": "^6.13.2",
     "ts-node": "^10.9.2"
   }

package.json

@@ -0,0 +1,6 @@
+export const address = {
+  // Arbiturm mainnet
+  poolAddress: "0xC6962004f452bE9203591991D15f6b388e09E8D0",
+  factoryAddress: "0x1F98431c8aD98523631AE4a59f267346ea31F984",
+  swapRouterAddress: "0xE592427A0AEce92De3Edee1F18E0157C05861564",
+};

src/address.ts

@@ -1,21 +1,18 @@
 import { ethers } from "ethers";
 import UniswapV3PoolArtifact from "@uniswap/v3-core/artifacts/contracts/interfaces/IUniswapV3Pool.sol/IUniswapV3Pool.json";
-import UniswapV3FactoryArtifact from "@uniswap/v3-core/artifacts/contracts/interfaces/IUniswapV3Factory.sol/IUniswapV3Factory.json";
 import ERC20ABI from "../abis/ERC20.json";
+import { address } from "./address";
 
 // Arbitrum RPC 노드 연결
 const provider = new ethers.JsonRpcProvider("https://arb1.arbitrum.io/rpc");
 
 // 유니스왑 V3 풀 컨트랙트 주소 ETH / USDC
-const poolAddress = "0xC6962004f452bE9203591991D15f6b388e09E8D0";
-const factoryAddress = "0x1F98431c8aD98523631AE4a59f267346ea31F984";
+const poolAddress = address.poolAddress;
 
 const { abi: UniswapV3PoolABI } = UniswapV3PoolArtifact;
-const { abi: UniswapV3FactoryABI } = UniswapV3FactoryArtifact;
 
 // 유니스왑 풀 컨트랙트 객체 생성
 const poolContract = new ethers.Contract(poolAddress, UniswapV3PoolABI, provider);
-const factoryContract = new ethers.Contract(factoryAddress, UniswapV3FactoryABI, provider);
 
 const getPoolInfo = async () => {
   const slot0 = await poolContract.slot0();

src/index.ts

@@ -0,0 +1,60 @@
+import "dotenv/config";
+import { ethers } from "ethers";
+import UniswapV3SwapRouterArtifact from "@uniswap/v3-periphery/artifacts/contracts/SwapRouter.sol/SwapRouter.json";
+import ERC20ABI from "../abis/ERC20.json";
+import { address } from "./address";
+// 유니스왑 V3 Router 주소 (Arbitrum)
+const swapRouterAddress = address.swapRouterAddress;
+
+// Uniswap V3 Router의 ABI (swapExactInputSingle 함수)
+const { abi: uniswapV3SwapRouterABI } = UniswapV3SwapRouterArtifact;
+
+async function swapTokens() {
+  // RPC 노드 연결
+  const provider = new ethers.JsonRpcProvider("https://arb1.arbitrum.io/rpc");
+
+  // 사용자의 지갑
+  const privateKey = "YOUR_PRIVATE_KEY"; // 사용자 개인키
+  const wallet = new ethers.Wallet(privateKey, provider);
+
+  // 유니스왑 V3 Router 컨트랙트 객체 생성
+  const routerContract = new ethers.Contract(swapRouterAddress, uniswapV3SwapRouterABI, wallet);
+
+  // 스왑할 토큰 정보 (예: WETH -> USDC)
+  const tokenIn = ""; // WETH 주소
+  const tokenOut = ""; // USDC 주소
+  const fee = 3000; // 0.3% 풀 사용
+  const recipient = wallet.address; // 스왑 결과를 받을 주소 (보통 사용자 본인의 주소)
+  const deadline = Math.floor(Date.now() / 1000) + 60 * 10; // 10분 후 트랜잭션 마감
+  const amountIn = ethers.parseUnits("0.1", 18); // 스왑할 0.1 WETH (단위: 18 decimals)
+  const amountOutMinimum = ethers.parseUnits("1", 6); // 최소 1 USDC 수령 (단위: 6 decimals)
+
+  try {
+    // 토큰 승인: 먼저 WETH를 유니스왑 V3 Router에 사용하도록 승인
+    const tokenInContract = new ethers.Contract(tokenIn, ERC20ABI, wallet);
+
+    const approvalTx = await tokenInContract.approve(swapRouterAddress, amountIn);
+    await approvalTx.wait();
+    console.log("Token approved");
+
+    // 스왑 트랜잭션 생성
+    const swapTx = await routerContract.exactInputSingle({
+      tokenIn,
+      tokenOut,
+      fee,
+      recipient,
+      deadline,
+      amountIn,
+      amountOutMinimum,
+      sqrtPriceLimitX96: 0, // 가격 제한 없음
+    });
+
+    // 트랜잭션 대기
+    const receipt = await swapTx.wait();
+    console.log("Swap completed: ", receipt);
+  } catch (error) {
+    console.error("An error occured during swap:", error);
+  }
+}
+
+swapTokens();