@mayanfinance/swap-sdk

Mayan Swap SDK

A minimal package for sending cross-chain swap transactions

Installation:

npm install --save @mayanfinance/swap-sdk

Usage:

Import the necessary functions and models:

import { fetchQuote, swapFromEvm, swapFromSolana, Quote } from '@mayanfinance/swap-sdk'

Then we will need to get a quote:

Getting Quote:

const quote = await fetchQuote({
  amountIn: 250,
  fromToken: fromToken.contract,
  toToken: toToken.contract,
  fromChain: "bsc",
  toChain: "solana",
  slippage: 3,
  withReferrer: false,
});

You can get the list of available tokens using Tokens API

If you want to receive referrer fee, set "withReferrer" param to "true".

Slippage is in percentage, so 3 means "up to three percent slippage".

After we get the quote we can send the swap transaction:

Swap from Solana:

swapTrx = await swapFromSolana(quote, originWalletAddress, destinationWalletAddress, deadlineInSeconds, referrerAddress, signSolanaTransaction, solanaConnection)

Swap from EVM:

swapTrx = await swapFromEvm(quote, destinationWalletAddress, deadlineInSeconds, referrerAddress, provider, signer)

"referrerAddress" should be a Solana wallet address. If you don't want to get referrer fee from users, you could set "referrerAddress" to "11111111111111111111111111111111"

Tracking:

To track the progress of a swap, we can use Mayan Explorer API