Prerelase for local testing! The package will be available on package managers soon.

This package allows to do bridge and swap calls via ParaSwap and Connext. The Li.Fi API is used under the hood to find the best cross-chain quote. The quote can then be executed using any signer/wallet.

Transfers of the defined tokens are possible between all combinations of chains supported by Connext. The combination with ParaSwap enables you to swap+bridge any token from chains supported by ParaSwap and receive any token on these chains aswell (bride+swap).

First you request a quote (getQuote) for the assets you want to transfer and swap. The returned quote contains a transactionRequest which can be passed to your wallet to start the transfer. Afterwards you want to use the getStatus function to check if the transfer has been been completed on the destination chain.

import { providers, Wallet } from 'ethers'
import { ParaswapConnextSdk } from '../src'

const sdk = new ParaswapConnextSdk()

// get quote
const quote = await sdk.getQuote(
  'USDC',
  'POL',
  'USDT',
  'DAI',
  '1000000',
  await wallet.getAddress()
)

// start transfer
const sendTx = await wallet.sendTransaction(quote.transactionRequest)
await sendTx.wait()

// check status
console.log('>> Check status')
let result
do {
  result = await sdk.getStatus(quote.action.fromChainId, quote.action.toChainId, sendTx.hash)
  await new Promise((resolve) => {
    setTimeout(resolve, 10_000)
  })
} while (
  !result ||
  (result.status !== 'DONE' && result.status !== 'FAILED')
)
console.log('>> FINISHED', result)

Please check the demo script ./demo/demo.js for a complete example.

Install dependencies:

yarn

Test your code with Jest framework:

yarn test

Build production (distribution) files in your dist folder:

yarn build

In order to update the package, commit all new changes first. Then run the following command:

yarn release

This will

• bump the version number according to the types of the last commits (i.e. if it is a major, minor or bug fix release)
• create a new git tag
• update the CHANGELOG.md

Next you need to push both, the code and the new version tag:

git push && git push --tags