Bitcoin Wallet

A secure, client-side Bitcoin wallet application built with Angular 18+, modern web technologies with best practices on top of bitcoinjs-lib-wrapper.

Features

• HD Wallet with BIP39 mnemonic generation
• Multiple address management
• Support for different Bitcoin networks (mainnet, testnet)
• Custom transaction fee settings
• QR code generation for addresses
• Transaction history tracking
• Secure, client-side only operations
• Responsive design for mobile and desktop

Technology Stack

• Angular 18+
• TypeScript
• bitcoinjs-lib-wrapper
• Tailwind CSS
• Jasmine/Karma for unit testing
• Cypress for E2E testing

Prerequisites

• Node.js 18+
• npm 9+

Installation

1. Clone the repository: ```bash git clone https://github.com/jeferson0993/bitcoinjs-lib-wrapper-demo.git cd bitcoinjs-lib-wrapper-demo ```

2. Install dependencies: ```bash npm install ```

3. Start the development server: ```bash npm start ```

The application will be available at `http://localhost:4200\`

Testing

Unit Tests

Run unit tests with: ```bash npm test ```

Generate coverage report: ```bash npm run test:coverage ```

E2E Tests

Run Cypress tests: ```bash npm run test:e2e ```

Open Cypress Test Runner: ```bash npm run cypress:open ```

Project Structure

``` src/ ├── app/ │ ├── components/ # Reusable UI components │ ├── config/ # Configuration files │ ├── pages/ # Route components │ ├── services/ # Business logic and data services │ ├── shared/ # Shared components │ └── types/ # TypeScript interfaces and types └── styles/ # Global styles ```

Security Considerations

• All cryptographic operations are performed client-side
• Private keys never leave the user's browser
• Sensitive data is encrypted before storage
• No external API dependencies for core wallet functionality

Contributing

1. Fork the repository
2. Create a feature branch
3. Commit your changes
4. Push to the branch
5. Create a Pull Request

License

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

Acknowledgments

• bitcoinjs-lib-wrapper
• Angular