@mercurial-finance/dynamic-amm-sdk/dist/esm/src/examples/swap.js

Mercurial Vaults SDK is a typescript library that allows you to interact with Mercurial v2's AMM.

var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
import { Connection, PublicKey, Keypair } from '@solana/web3.js';
import BN from 'bn.js';
import { Wallet, AnchorProvider } from '@coral-xyz/anchor';
import AmmImpl from '../amm';
import fs from 'fs';
import os from 'os';
function loadKeypairFromFile(filename) {
    const secret = JSON.parse(fs.readFileSync(filename.replace('~', os.homedir)).toString());
    const secretKey = Uint8Array.from(secret);
    return Keypair.fromSecretKey(secretKey);
}
const payerKP = loadKeypairFromFile('~/.config/solana/id.json');
const payerWallet = new Wallet(payerKP);
console.log('Wallet Address: %s \n', payerKP.publicKey);
const devnetConnection = new Connection('https://api.devnet.solana.com');
const provider = new AnchorProvider(devnetConnection, payerWallet, {
    commitment: 'confirmed',
});
function swap(poolAddress, swapAmount, swapAtoB) {
    return __awaiter(this, void 0, void 0, function* () {
        const pool = yield AmmImpl.create(provider.connection, poolAddress);
        const poolInfo = pool.poolInfo;
        const poolTokenAddress = yield pool.getPoolTokenMint();
        console.log('Pool LP Token Mint Address: %s', poolTokenAddress.toString());
        const lpSupply = yield pool.getLpSupply();
        console.log('Pool LP Supply: %s', lpSupply.toNumber() / Math.pow(10, pool.decimals));
        const LockedLpAmount = yield pool.getLockedLpAmount();
        console.log('Locked Lp Amount: %s \n', LockedLpAmount.toNumber());
        console.log('tokenA %s Amount: %s ', pool.tokenAMint.address, poolInfo.tokenAAmount.toNumber() / Math.pow(10, pool.tokenAMint.decimals));
        console.log('tokenB %s Amount: %s ', pool.tokenBMint.address, poolInfo.tokenBAmount.toNumber() / Math.pow(10, pool.tokenBMint.decimals));
        console.log('virtualPrice: %s \n', poolInfo.virtualPrice);
        let swapInToken = swapAtoB ? pool.tokenAMint : pool.tokenBMint;
        let swapOutToken = swapAtoB ? pool.tokenBMint : pool.tokenAMint;
        let inTokenMint = new PublicKey(swapInToken.address);
        let swapQuote = pool.getSwapQuote(inTokenMint, swapAmount, 100);
        console.log('🚀 ~ swapQuote:');
        console.log('Swap In %s, Amount %s ', swapInToken.address, swapQuote.swapInAmount.toNumber() / Math.pow(10, swapInToken.decimals));
        console.log('Swap Out %s, Amount %s \n', swapOutToken.address, swapQuote.swapOutAmount.toNumber() / Math.pow(10, swapOutToken.decimals));
        console.log('Fee of the Swap %s %s', swapQuote.fee.toNumber() / Math.pow(10, swapInToken.decimals), swapInToken.address);
        console.log('Price Impact of the Swap %s \n', swapQuote.priceImpact);
        console.log('Swapping...↔️ Please wait for a while😊☕️');
        const swapTx = yield pool.swap(payerWallet.publicKey, new PublicKey(swapInToken.address), swapAmount, swapQuote.minSwapOutAmount);
        const swapResult = yield provider.sendAndConfirm(swapTx);
        console.log('Swap Transaction Hash: %s ', swapResult);
    });
}
function main() {
    return __awaiter(this, void 0, void 0, function* () {
        // devnet, 9NG-SOL
        const poolAddress = 'Bgf1Sy5kfeDgib4go4NgzHuZwek8wE8NZus56z6uizzi';
        // swap 5 9NG token to SOL
        // await swap(new PublicKey(poolAddress), new BN(5000_000_000), true);
        // swap 0.01 SOL to 9NG token
        yield swap(new PublicKey(poolAddress), new BN(10000000), false);
    });
}
main();
//# sourceMappingURL=swap.js.map