@jup-ag/core

@jup-ag/core

Jupiter core typescript library

Installation

Yarn

yarn add @jup-ag/core

NPM

npm install @jup-ag/core

Usage

import { Connection, PublicKey } from '@solana/web3.js';
import { Jupiter } from '@jup-ag/core';
import { Wallet } from '@project-serum/anchor';

const wallet = Wallet.local()
const main = async () => {
    const connection = new Connection('https://solana-api.projectserum.com');
    const wallet = new Wallet
    
    // load Jupiter
    const jupiter = await Jupiter.load({
        connection,
        cluster: 'mainnet-beta',
        user: wallet.payer // or public key
    })

    // RouteMap which map each tokenMint and their respective tokenMints that are swappable
    const routeMap = jupiter.getRouteMap();
    const possibleSOLPairs = routeMap.get('So11111111111111111111111111111111111111112'); // return an array of token mints that can be swapped with SOL

    // Calculate routes for swapping 1 SOL to USDC with 1% slippage
    // routes are sorted based on outputAmount, so ideally the first route is the best.
    const routes = jupiter.computeRoutes(new PublicKey('So11111111111111111111111111111111111111112'), new ublicKey('EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v'), 1_000_000_000, 1);


    console.log('Quoted out amount', routes[0].outAmount);

    // Prepare execute exchange
    const { execute } = await jupiter.exchange({
        route: routes[0]
    })

    // Swap for keypair
    const swapResult = await execute()

    // Swap for publicKey
    // const swapResult = await execute({
    //     wallet: SignerWalletAdapter // from @solana/wallet-adapter-base, mainly need signTransaction and signAllTransactions
    // })

    if (swapResult.error) {
        console.log(swapResult.error)
    } else {
        console.log(swapResult.txid)
        console.log(swapResult.inputAddress)
        console.log(swapResult.outputAddress)
        console.log(swapResult.inputAmount)
        console.log(swapResult.outputAmount)
    }