siw-any-chain

siw-any-chain is a flexible package that provides a unified interface for signing and verifying messages across different blockchain platforms. It supports Sign-In With Ethereum (SIWE) and Sign-In With Solana (SIWS) implementations out of the box, and it can be easily extended to support additional blockchain platforms.

Features

• Sign-In With Ethereum (SIWE): Provides the ability to create, sign, and verify Ethereum-based messages using the SIWE standard.
• Sign-In With Solana (SIWS): Offers support for creating, signing, and verifying messages specific to the Solana blockchain using the SIWS standard.
• Flexible Architecture: Designed to be extensible, allowing easy integration of new blockchain platforms by implementing the provided BlockchainMessage interface.
• TypeScript Support: Written in TypeScript and includes type declarations for seamless integration with TypeScript projects.
• Easy-to-Use API: Provides a simple and intuitive API for creating, signing, and verifying messages across different blockchain platforms.

Installation

Install the package using npm:

npm install siw-any-chain

Or with yarn:

yarn add siw-any-chain

Usage

import { MessageFactory, BlockchainType } from 'siw-any-chain';

// Create a SIWE message
const siweMessage = MessageFactory.createMessage(siweParams, BlockchainType.EVM);

// Create a SIWS message
const siwsMessage = MessageFactory.createMessage(siwsParams, BlockchainType.SOL);

// Sign and verify the messages
const signature = ...; // Get the signature
const verified = await siweMessage.verify(signature);

Acknowledgements

This package is built upon the excellent work of the SIWE team from spruceid. SIWE (Sign-In with Ethereum) is becoming more popular as a standard for authenticating users with web3 wallets. I extend their library by adding Solana functionality while maintaining compatibility with their core package.

Their library serves as the foundation for this package, allowing us to provide sign-in capabilities using Solana and in the future, other blockchain networks.

Please visit the SIWE GitHub repository to learn more about their project and show your support by giving them a star.

Contributing

Contributions are welcome! If you have any ideas, bug fixes, or feature suggestions, please open an issue or submit a pull request on the GitHub repository.

License

This project is licensed under the MIT License. See the LICENSE file for details.