Quickstart

1. Installation

Browser compatibility

Garden SDK requires wasm support and polyfills in the browser environment. Use the setup from the core package to add support for wasm and polyfills.

Garden dependencies

To install the required Garden packages:

npm

npm install @gardenfi/core @gardenfi/orderbook @gardenfi/react-hooks

yarn

yarn add @gardenfi/core @gardenfi/orderbook @gardenfi/react-hooks

pnpm

pnpm add @gardenfi/core @gardenfi/orderbook @gardenfi/react-hooks

wagmi dependencies

To install wagmi dependencies:

npm

bash npm install @tanstack/react-query wagmi

yarn

yarn add @tanstack/react-query wagmi

pnpm

pnpm add @tanstack/react-query wagmi

---

2. Setup your React app.

Integrate Garden into your React app by wrapping it with the GardenProvider. This enables interaction with the protocol and handles session management.

• store: Persists session data (e.g., in localStorage or sessionStorage).

• environment: Specifies the network (mainnet or testnet).

  app.tsx

  import { GardenProvider } from '@gardenfi/react-hooks';
  import { Environment } from '@gardenfi/utils';
  import { useWalletClient } from 'wagmi';
  import { Swap } from './Swap';
  
  function App() {
    const { data: walletClient } = useWalletClient();
  
    return (
      <GardenProvider
        config={{
          store: localStorage,
          environment: Environment.TESTNET,
          walletClient: walletClient,
        }}
      >
        <Swap />
      </GardenProvider>
    );
  }
  
  export default App;

  main.tsx

  import React from 'react';
  import ReactDOM from 'react-dom/client';
  import { WagmiProvider } from 'wagmi';
  import { QueryClientProvider, QueryClient } from '@tanstack/react-query';
  import { wagmiConfig } from 'wagmi.ts';
  
  ReactDOM.createRoot(document.getElementById('root')!).render(
    <React.StrictMode>
      <WagmiProvider config={wagmiConfig}>
        <QueryClientProvider client={new QueryClient()}>
          <App />
        </QueryClientProvider>
      </WagmiProvider>
    </React.StrictMode>
  );

  wagmi.ts

  import { createConfig, http } from 'wagmi';
  import { arbitrum, arbitrumSepolia, mainnet, sepolia } from 'wagmi/chains';
  import { injected, metaMask, safe } from 'wagmi/connectors';
  
  export const wagmiConfig = createConfig({
    chains: [mainnet, arbitrum, sepolia, arbitrumSepolia],
    connectors: [injected(), metaMask(), safe()],
    transports: {
      [mainnet.id]: http(),
      [arbitrum.id]: http(),
      [sepolia.id]: http(),
      [arbitrumSepolia.id]: http(),
    },
  });

---

3. Create a swap component

This is the lifecycle of a swap:

• Get a quote (supports 'exact out' as well).

• Pick the best quote from the available options.

• Initiate the transaction to complete the swap.

  Swap.tsx

  import { SupportedAssets } from '@gardenfi/orderbook';
  import { useGarden } from '@gardenfi/react-hooks';
  import BigNumber from 'bignumber.js';
  import { useState } from 'react';
  
  export const Swap = () => {
    const [quote, setQuote] = useState<{
      strategyId: string;
      quoteAmount: string;
    }>();
  
    const { swapAndInitiate, getQuote } = useGarden();
  
    // Define the assets involved in the swap
    const inputAsset = SupportedAssets.testnet.arbitrum_sepolia_WBTC;
    const outputAsset = SupportedAssets.testnet.bitcoin_testnet_BTC;
  
    // Amount to be swapped, converted to the smallest unit of the input asset
    const amount = new BigNumber(0.01).multipliedBy(10 ** inputAsset.decimals);
  
    // User's Bitcoin address to receive funds
    const btcAddress = 'tb1q25q3632323232323232323232323232323232';
  
    const handleGetQuote = async () => {
      if (!getQuote) return;
  
      // Fetch a quote for the swap
      const quote = await getQuote({
        fromAsset: inputAsset,
        toAsset: outputAsset,
        amount: amount.toNumber(),
        isExactOut: false,
        });
        if (quote.error) {
        return alert(quote.error);
      }
  
      // Select a quote and save it
      const [_strategyId, quoteAmount] = Object.entries(quote.val.quotes)[0];
      setQuote({
        strategyId: \_strategyId,
        quoteAmount: quoteAmount,
      });
    };
  
    const handleSwap = async () => {
      if (!swapAndInitiate || !quote) return;
  
      // Initiate the swap with the selected quote and user's details
      const order = await swapAndInitiate({
        fromAsset: inputAsset,
        toAsset: outputAsset,
        sendAmount: amount.toString(),
        receiveAmount: quote.quoteAmount,
        additionalData: {
        btcAddress,
        strategyId: quote.strategyId,
        },
      });
      if (order.error) {
        return alert(order.error);
      }
  
      console.log('✅ order created: ', order.val);
    };
  
    return (
      <div>
        <button onClick={handleGetQuote}>Get Quote</button>{/* Fetch swap quote */}
        <button onClick={handleSwap}>Swap</button> {/* Initiate the swap */}
      </div>
    );
  }

note

Important: The user must stay on the app during the process. If they navigate away, the transaction will pause and only resume when they return.

This is because the GardenProvider actively polls the transaction status and uses our Gasless API to submit the transaction on-chain to complete the swap. For API integrations, you can customize how you interact with the required API endpoints to manage transaction polling and submission.