@etherplay/wallet-connector

Core wallet connector interfaces and types for the @etherplay/connect ecosystem. This package provides the foundational abstractions for wallet provider implementations across different blockchain networks.

Installation

npm install @etherplay/wallet-connector
# or
pnpm add @etherplay/wallet-connector
# or
yarn add @etherplay/wallet-connector

Overview

This package defines the core interfaces and types used by wallet connector implementations. It serves as the foundation for building wallet integrations that work consistently across different blockchain networks.

Core Types

WalletHandle

Represents a wallet with its provider and metadata:

type WalletHandle<UnderlyingProvider> = {
	walletProvider: WalletProvider<UnderlyingProvider>;
	info: WalletInfo;
};

WalletInfo

Metadata about a wallet:

type WalletInfo = {
	uuid: string;
	name: string;
	icon: string;
	rdns: string;
};

ChainInfo

Information about a blockchain network:

type ChainInfo = Readonly<{
	chainId: `0x${string}`;
	rpcUrls?: readonly string[];
	blockExplorerUrls?: readonly string[];
	chainName?: string;
	iconUrls?: readonly string[];
	nativeCurrency?: Readonly<{
		name: string;
		symbol: string;
		decimals: number;
	}>;
}>;

Interfaces

AccountGenerator

Interface for generating accounts from mnemonics:

interface AccountGenerator {
	fromMnemonicToAccount(mnemonic: string, index: number): PrivateKeyAccount;
	signTextMessage(message: string, privateKey: `0x${string}`): Promise<`0x${string}`>;
	type: string;
}

WalletConnector

Main interface for wallet connector implementations:

interface WalletConnector<UnderlyingProvider> {
	fetchWallets(walletAnnounced: (walletHandle: WalletHandle<UnderlyingProvider>) => void): void;
	createAlwaysOnProvider(params: {
		endpoint: string | UnderlyingProvider;
		chainId: string;
		prioritizeWalletProvider?: boolean;
		requestsPerSecond?: number;
	}): AlwaysOnProviderWrapper<UnderlyingProvider>;
	accountGenerator: AccountGenerator;
}

WalletProvider

Interface for wallet provider interactions:

interface WalletProvider<UnderlyingProvider> extends BasicWalletProvider<UnderlyingProvider> {
	listenForAccountsChanged: (handler: (accounts: `0x${string}`[]) => void) => void;
	stopListenForAccountsChanged: (handler: (accounts: `0x${string}`[]) => void) => void;
	listenForChainChanged: (handler: (chainId: `0x${string}`) => void) => void;
	stopListenForChainChanged: (handler: (chainId: `0x${string}`) => void) => void;
	switchChain: (chainId: `0x${string}`) => Promise<null | any>;
	addChain(chainInfo: ChainInfo): Promise<null | any>;
}

AlwaysOnProviderWrapper

Wrapper for providers that should always be available:

interface AlwaysOnProviderWrapper<WalletProviderType> {
	setWalletProvider: (walletProvider: WalletProviderType | undefined) => void;
	setWalletStatus: (newStatus: 'connected' | 'locked' | 'disconnected') => void;
	chainId: string;
	provider: WalletProviderType;
}

Usage

This package is primarily used as a dependency for implementing blockchain-specific wallet connectors:

import type {WalletConnector, WalletProvider, AccountGenerator, ChainInfo} from '@etherplay/wallet-connector';

// Implement a custom wallet connector
class MyWalletConnector implements WalletConnector<MyProvider> {
	// ... implementation
}

Related Packages

• @etherplay/wallet-connector-ethereum - Ethereum implementation of the wallet connector
• @etherplay/connect - Main connection library that uses wallet connectors
• @etherplay/alchemy - Social login mechanisms for account generation

License

MIT