Connecting Wallets

SwapDK provides multiple ways to connect wallets for different blockchain networks. This guide demonstrates how to connect various wallet types using both granular and all-in-one approaches.

Wallet Connection Demo

Try connecting different wallet types to see how SwapDK handles multi-chain connections

Select Chains:

Ethereum Bitcoin Thorchain Cosmos

Select Wallet:

Connection Status Disconnected

Select chains and a wallet type, then click "Connect Wallet" to see the connection process.

Generated Code:

Note: This is a simulation for demonstration purposes. In a real application, you'd handle actual wallet connections and user interactions.
Try it live in StackBlitz →

Two Approaches to Using SwapDK

You can use SwapDK in two ways:

Granular approach - Import only what you need from individual packages:
```
import { SwapKit, keystoreWallet } from "@swapdk/sdk";
```
All-in-one approach - Import everything from the SDK (better for backend/Node.js):
```
import { createSwapKit } from "@swapdk/sdk";
```

The granular approach is recommended for frontend applications as it results in smaller bundle sizes.

Initialize SwapDK

Granular Approach (Frontend Recommended)

import { SwapKit, keystoreWallet, ledgerWallet, evmWallet } from "@swapdk/sdk";

const swapDK = SwapKit({
  config: {
    apiKeys: {
      swapKit: "your-swapdk-api-key",
      walletConnectProjectId: "your-walletconnect-project-id",
    },
  },
  wallets: { ...keystoreWallet, ...ledgerWallet, ...evmWallet },
});

All-in-one Approach (Backend/Node.js)

import { createSwapKit } from "@swapdk/sdk";

const swapDK = createSwapKit({
  config: {
    apiKeys: {
      swapKit: "your-swapdk-api-key",
      walletConnectProjectId: "your-walletconnect-project-id",
    },
  },
});

Connect with Keystore Wallet

Granular Approach

import {
  Chain,
  SwapKit,
  keystoreWallet,
  decryptFromKeystore,
  type Keystore,
} from "@swapdk/sdk";

const swapDK = SwapKit({
  wallets: { ...keystoreWallet },
});

async function connectWithKeystore(
  keystoreFile: Keystore,
  password: string,
  chains: Chain[]
) {
  try {
    const phrase = await decryptFromKeystore(keystoreFile, password);

    await swapDK.connectKeystore(chains, phrase);

    const balances = await Promise.all(
      chains.map(async (chain) => {
        const wallet = await swapDK.getWalletWithBalance(chain);
        return wallet.balance;
      })
    );

    return { success: true, balances };
  } catch (error) {
    return { success: false, error };
  }
}

const chains = [Chain.Ethereum, Chain.Bitcoin, Chain.Ripple];
await connectWithKeystore(keystoreFile, password, chains);

All-in-one Approach

import {
  Chain,
  createSwapKit,
  decryptFromKeystore,
  type Keystore,
} from "@swapdk/sdk";

const swapDK = createSwapKit();

async function connectWithKeystore(
  keystoreFile: Keystore,
  password: string,
  chains: Chain[]
) {
  try {
    const phrase = await decryptFromKeystore(keystoreFile, password);

    await swapDK.connectKeystore(chains, phrase);

    return { success: true };
  } catch (error) {
    return { success: false, error };
  }
}

Using Hardware Wallets

Ledger Wallet

import { Chain, SwapKit, ledgerWallet } from "@swapdk/sdk";

const swapDK = SwapKit({
  wallets: { ...ledgerWallet },
});

async function connectLedger(chains: Chain[]) {
  try {
    await swapDK.connectLedger(chains);

    const ethAddress = swapDK.getAddress(Chain.Ethereum);

    return { success: true };
  } catch (error) {
    return { success: false, error };
  }
}

Trezor Wallet

import {
  Chain,
  NetworkDerivationPath,
  SwapKit,
  trezorWallet,
} from "@swapdk/sdk";

const swapDK = SwapKit({
  wallets: { ...trezorWallet },
});

async function connectTrezor(chains: Chain[]) {
  try {
    await swapDK.connectTrezor([Chain.Bitcoin], NetworkDerivationPath.BTC);

    const btcWallet = await swapDK.getWalletWithBalance(Chain.Bitcoin);

    return { success: true, balance: btcWallet.balance };
  } catch (error) {
    return { success: false, error };
  }
}

Using Browser Extension Wallets

MetaMask / EVM Wallets

import { Chain, SwapKit, evmWallet } from "@swapdk/sdk";

const swapDK = SwapKit({
  wallets: { ...evmWallet },
});

async function connectEVMWallet() {
  try {
    await swapDK.connectEVMWallet([Chain.Ethereum, Chain.BinanceSmartChain]);

    const address = swapDK.getAddress(Chain.Ethereum);

    return { success: true, address };
  } catch (error) {
    return { success: false, error };
  }
}

Keplr (Cosmos) Wallet

import { Chain, SwapKit, keplrWallet } from "@swapdk/sdk";

const swapDK = SwapKit({
  wallets: { ...keplrWallet },
});

async function connectKeplr() {
  try {
    await swapDK.connectKeplr([Chain.Cosmos]);

    const address = swapDK.getAddress(Chain.Cosmos);

    return { success: true, address };
  } catch (error) {
    return { success: false, error };
  }
}

Cosmostation (Cosmos) Wallet

import { Chain, SwapKit, cosmostationWallet } from "@swapdk/sdk";

const swapDK = SwapKit({
  wallets: { ...cosmostationWallet },
});

async function connectCosmostation() {
  try {
    await swapDK.connectCosmostation([Chain.Cosmos, Chain.THORChain]);

    const address = swapDK.getAddress(Chain.Cosmos);

    return { success: true, address };
  } catch (error) {
    return { success: false, error };
  }
}

Phantom (Solana) Wallet

import { Chain, SwapKit, phantomWallet } from "@swapdk/sdk";

const swapDK = SwapKit({
  wallets: { ...phantomWallet },
});

async function connectPhantom() {
  try {
    await swapDK.connectPhantom([Chain.Solana]);

    const address = swapDK.getAddress(Chain.Solana);

    return { success: true, address };
  } catch (error) {
    return { success: false, error };
  }
}

Managing Wallet Connections

import { Chain, SwapKit, evmWallet } from "@swapdk/sdk";

const swapDK = SwapKit({
  wallets: { ...evmWallet },
});

function getAllWallets() {
  const wallets = swapDK.getAllWallets();
  return wallets;
}

function disconnectChain(chain: Chain) {
  swapDK.disconnectChain(chain);
}

function disconnectAll() {
  swapDK.disconnectAll();
}

Getting Wallet Balances

import { Chain, SwapKit, evmWallet } from "@swapdk/sdk";

const swapDK = SwapKit({
  wallets: { ...evmWallet },
});

await swapDK.connectEVMWallet([Chain.Ethereum]);

async function getChainBalance(chain: Chain) {
  const balance = await swapDK.getBalance(chain, true);
  return balance;
}

async function getAllBalances(chains: Chain[]) {
  const balances = await Promise.all(
    chains.map(async (chain) => {
      try {
        const wallet = await swapDK.getWalletWithBalance(chain);
        return { chain, balance: wallet.balance };
      } catch (error) {
        return { chain, balance: [], error };
      }
    })
  );

  return balances;
}

Using WalletConnect

import { Chain, SwapKit, walletconnectWallet } from "@swapdk/sdk";

const swapDK = SwapKit({
  config: {
    apiKeys: {
      walletConnectProjectId: "YOUR_WALLETCONNECT_PROJECT_ID",
    },
  },
  wallets: { ...walletconnectWallet },
});

async function connectWalletConnect() {
  try {
    await swapDK.connectWalletconnect([
      Chain.Ethereum,
      Chain.BinanceSmartChain,
      Chain.Cosmos,
    ]);

    const ethAddress = swapDK.getAddress(Chain.Ethereum);

    return { success: true };
  } catch (error) {
    return { success: false, error };
  }
}

Advanced: Connecting Multiple Wallets

import {
  Chain,
  SwapKit,
  evmWallet,
  keplrWallet,
  keystoreWallet,
} from "@swapdk/sdk";

const swapDK = SwapKit({
  wallets: { ...evmWallet, ...keplrWallet, ...keystoreWallet },
});

async function connectMultipleWallets(phrase: string) {
  try {
    await swapDK.connectEVMWallet([Chain.Ethereum]);

    await swapDK.connectKeplr([Chain.Cosmos]);

    await swapDK.connectKeystore([Chain.Bitcoin], phrase);

    const wallets = swapDK.getAllWallets();

    const addresses = {
      [Chain.Ethereum]: swapDK.getAddress(Chain.Ethereum),
      [Chain.Cosmos]: swapDK.getAddress(Chain.Cosmos),
      [Chain.Bitcoin]: swapDK.getAddress(Chain.Bitcoin),
    };

    return { success: true, addresses };
  } catch (error) {
    return { success: false, error };
  }
}