Svelteth

Try Svelteth live demo at: https://svelteth-demo.vercel.app/

Svelteth is an open-source library designed to simplify and amplify Web3 adoption in Svelte 5 projects. By leveraging Svelte's reactivity, Svelteth makes it easy to connect, manage, and interact with Ethereum wallets and providers in your Svelte applications.

Features

• 🔗 Easy Wallet Connection: Seamlessly connect to Ethereum wallets using EIP-6963.
• ⚡ Reactive State: All wallet and provider states are fully reactive, thanks to Svelte 5.
• 🦊 Multi-Wallet Support: Detect and connect to multiple wallet extensions.
• 🛡️ TypeScript Support: Fully typed for safety and autocompletion.

Installation

npm install svelteth

Usage

Use the reactive wallet state and actions directly:

import {
	availableWallets,
	wallet,
	connectWallet,
	disconnectWallet,
	listenToProviderEvents,
	isConnecting,
	isSearching,
	signMessage,
	sendTransaction,
	// Multi-wallet support
	wallets,
	activeWalletId,
	getConnectedWalletIds,
	getWallet,
	switchWallet,
	getAllWallets
} from 'svelteth';

Lifecycle Setup

To make sure Svelteth can detect available wallets via EIP-6963,
you need to call listenToProviderEvents() inside the Svelte onMount lifecycle:

<script lang="ts">
	import { onMount } from 'svelte';
	import { listenToProviderEvents } from 'svelteth';

	onMount(() => {
		listenToProviderEvents();
	});
</script>

Multi-Wallet Support

Svelteth supports connecting and managing multiple wallets simultaneously. This is useful for:

• Testing transactions between different accounts
• Managing multiple identities
• Switching between wallets without disconnecting

Working with Multiple Wallets

import { 
	wallets,           // Record of all connected wallets
	activeWalletId,    // Currently active wallet ID
	wallet,            // Get the active wallet
	getWallet,         // Get a specific wallet by ID
	switchWallet,      // Switch to a different wallet
	getAllWallets,     // Get array of all connected wallets
	getConnectedWalletIds  // Get list of wallet IDs
} from 'svelteth';

// Connect multiple wallets
availableWallets.list.forEach(w => connectWallet(w));

// Get all connected wallets
const allWallets = getAllWallets();

// Switch active wallet
switchWallet('com.metamask'); // Use wallet's RDNS as ID

// Get specific wallet
const specificWallet = getWallet('com.coinbase.wallet');

// Access active wallet (reactive)
const activeWallet = wallet();

// Disconnect specific wallet or all
disconnectWallet('com.metamask'); // Disconnect one
disconnectWallet('all');          // Disconnect all

Wallet State

Each wallet in the wallets object contains:

• info: Wallet metadata (name, icon, rdns, uuid)
• provider: EIP-1193 provider instance
• addresses: Array of wallet addresses
• chainId: Current chain ID
• balance: Current balance in wei
• gas: EIP-1559 gas estimates (baseFee and priority fees)
• isConnected: Connection status
• error: Error details, if any

Add Your Own Chain

Want to see your chain supported in Svelteth? You can easily add it by editing the chain file:

• Open src/lib/chain/index.ts
• Add a new entry to the CHAIN constant with your chain's ID, name, and logo.

 12345 :{
	name: 'Your Chain Name',
	logo: 'URL to your chain logo'
 },

Feel free to contribute with a pull request on GitHub to make it available for everyone!

License

MIT

Made with ❤️ for the Svelte and Web3 communities.