Swaps from Solana

Connecting a Web3 Wallet and Executing a Transaction through Rubic API

This page explains how to connect a Web3 wallet, retrieve token quotes, approve tokens, and execute a transaction using Rubic API, with examples using @solana/web3.js

Connecting a Web3 Wallet

To interact with the blockchain, we first need to connect a wallet. Here are examples using @solana/web3.js.

async function connectWallet() {
    if (window.solana) {
        try {
            const response = await window.solana.connect();
            return response.publicKey;
        } catch (err) {
            console.error('Connection error:', err.message);
        }
    } else {
          console.log('Solana provider not found. Please install MetaMask');
    }
}

Retrieving Token Quotes

Now that the wallet is connected, we can request token quotes from Rubic API.

Endpoint: POST https://api-v2.rubic.exchange/api/routes/quoteBest

async function quoteBest() {
    const response = await fetch("https://api-v2.rubic.exchange/api/routes/quoteBest", {
        method: "POST",
        headers: {
            "Content-Type": "application/json",
        },
        body: {
            "srcTokenAddress": "So11111111111111111111111111111111111111111",
            "srcTokenAmount": "1.05",
            "srcTokenBlockchain": "SOL"
            "dstTokenAddress": "0x0000000000000000000000000000000000000000",
            "dstTokenBlockchain": "POLYGON",
            "referrer": "rubic.exchange"
          }
    });
    const data = await response.json();
    const { estimate, transaction, id } = data;
    console.log(estimate);
    // {
    //     This is an estimated amount you will get after the swap.
    //     "destinationTokenAmount": "451.4591",
    //     "destinationTokenMinAmount": "437.915327",
    //
    //     "destinationUsdAmount": 233.63,
    //     "destinationUsdMinAmount": 226.63,
    //
    //     "destinationWeiAmount": "451459000000",
    //     "destinationWeiMinAmount": "437915327000",
    //
    //     "durationInMinutes": 5,
    //     "priceImpact": 0.23,
    //     "slippage": 0.03
    // }
    console.log(id);
    // This is the swap ID. It will be needed later for swap request.
    return data;
}

You get more information about quote endpoint here:

Request Quote

Retrieving Data to Execute a Transaction

To perform a token swap through Rubic API, we need to get the necessary data for the transaction.

Endpoint: POST https://api-v2.rubic.exchange/api/routes/swap

async function getSwapData() {
    const response = await fetch("https://api-v2.rubic.exchange/api/routes/swap", {
        method: "POST",
        headers: {
            "Content-Type": "application/json",
        },
        body: {
            "srcTokenAddress": "So11111111111111111111111111111111111111111",
            "srcTokenAmount": "1.05",
            "srcTokenBlockchain": "SOL"
            "dstTokenAddress": "0x0000000000000000000000000000000000000000",
            "dstTokenBlockchain": "POLYGON",
            "referrer": "rubic.exchange",
            "fromAddress": "USER WALLET ADDRESS",
            "id": "ID FROM QUOTE STEP",
            "receiver": "RECEIVER ADDRESS"
          }
    });
    const result = await response.json();
    const { transaction } = result;
    console.log(transaction);
    // api/routes/swap always returns solana data in base64 format
    // {
    //     "data": "AQAAAAAAAAAAA...SeOpIqnPIXvhm6MAcerlewmVsjBtvc2eDf4gKc2g==",
    // },
    return result;
}

You get more information about swap endpoint here:

Request Data

Executing a Transaction with the API Response Data

Using the data obtained from the Rubic API, you can now execute the transaction.

import { base64 } from 'ethers/lib/utils';
import { VersionedTransaction } from '@solana/web3.js';

async function executeSwap(
    // Transaction object, obtained on previous step from Rubic API
    transaction,
    // Connection object
    connection
) {
    const decodedData = base64.decode(options.data)
    const tx = VersionedTransaction.deserialize(decodedData);
    const { blockhash } = await connection.getRecentBlockhash();
    tx.message.recentBlockhash = blockhash;

    const { signature } = await window.solana.signAndSendTransaction(tx);
    console.log("Transaction executed:", tx.hash);
}

Track your transaction

Now you can track your transaction status

Endpoint: GET https://api-v2.rubic.exchange/api/routes/status

async function getStatus(
    // Your transaction hash, otained while executing transaction
    hash
) {
    const response = await fetch(`https://api-v2.rubic.exchange/api/info/status?srcTxHash=${hash}`);
    const data = await response.json();
    const { status, destinationTxHash } = data;
    console.log(status);
    // Current TX status can be one of
    // 'PENDING' | 'LONG_PENDING' | 'REVERT' |
    // 'REVERTED' | 'FAIL' | 'READY_TO_CLAIM' |
    // 'SUCCESS' | 'NOT_FOUND';
    console.log(status);
    // shows the hash on the target network if the transaction
    // is successfully completed
    return status;
}

You get more information about status endpoint here:

Get Cross-Chain Status