https://github.com/jupitermetalabs/geth-facade
https://github.com/jupitermetalabs/geth-facade
Last synced: 6 months ago
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- Host: GitHub
- URL: https://github.com/jupitermetalabs/geth-facade
- Owner: JupiterMetaLabs
- License: apache-2.0
- Created: 2025-08-21T05:08:21.000Z (10 months ago)
- Default Branch: main
- Last Pushed: 2025-10-08T10:28:00.000Z (9 months ago)
- Last Synced: 2025-10-08T11:33:41.255Z (9 months ago)
- Language: Go
- Size: 46.9 KB
- Stars: 0
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# JMDT Geth Facade
A high-performance Ethereum JSON-RPC facade that provides a Geth-compatible API interface with support for multiple blockchain backends.
## 🚀 Features
- **Geth Compatibility**: 95% compatible with official Geth JSON-RPC API
- **Modern Ethereum Support**: EIP-1559, EIP-2930, EIP-4844, EIP-4895
- **High Performance**: Built with Gin framework for optimal HTTP handling
- **WebSocket Support**: Real-time subscriptions for blockchain events
- **Multiple Backends**: Support for custom blockchain implementations
- **Health Monitoring**: Built-in health and readiness checks
- **Comprehensive Testing**: Full test suite with CI/CD support
## 📁 Project Structure
```
jmdt-geth-facade/
├── Types/ # Data structures and type definitions
├── Services/ # Business logic and service implementations
├── Tests/ # Testing scripts and documentation
├── Scripts/ # Deployment scripts and examples
├── main.go # Application entry point
└── README.md # This file
```
### Folder Descriptions
- **Types/**: Core data structures that mirror Geth's implementation
- **Services/**: HTTP/WebSocket servers, handlers, and backend implementations
- **Tests/**: Comprehensive testing scripts for all functionality
- **Scripts/**: Docker configuration and example implementations
## 🛠️ Installation
### Prerequisites
- Go 1.19 or later
- Git
### Build from Source
```bash
git clone https://github.com/jupitermetalabs/jmdt-geth-facade.git
cd jmdt-geth-facade
go build -o jmdt-geth-facade
```
### Docker
```bash
docker build -t jmdt-geth-facade .
docker run -p 8545:8545 -p 8546:8546 jmdt-geth-facade
```
## 🚀 Quick Start
### Basic Usage
```bash
# Start with default settings (memory backend)
./jmdt-geth-facade
# Start with custom ports
./jmdt-geth-facade -http ":8545" -ws ":8546"
# Start with custom chain ID
./jmdt-geth-facade -chainid "0xaa36a7"
```
### Test the API
```bash
# Health check
curl http://localhost:8545/health
# Get chain ID
curl -X POST http://localhost:8545/ \
-H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":1}'
# Get latest block
curl -X POST http://localhost:8545/ \
-H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","method":"eth_getBlockByNumber","params":["latest",false],"id":2}'
```
## 📚 API Documentation
### Supported Methods
#### Basic Information
- `web3_clientVersion` - Client version information
- `net_version` - Network version
- `eth_chainId` - Chain ID
- `eth_blockNumber` - Latest block number
#### Block Operations
- `eth_getBlockByNumber` - Get block by number
- `eth_getBlockByHash` - Get block by hash
- `eth_getBlockTransactionCountByNumber` - Transaction count by block number
- `eth_getBlockTransactionCountByHash` - Transaction count by block hash
#### Account Operations
- `eth_getBalance` - Get account balance
- `eth_getCode` - Get contract code
- `eth_getStorageAt` - Get storage value
- `eth_getTransactionCount` - Get nonce
#### Transaction Operations
- `eth_gasPrice` - Get gas price
- `eth_estimateGas` - Estimate gas usage
- `eth_call` - Execute call
- `eth_sendRawTransaction` - Send raw transaction
- `eth_getTransactionByHash` - Get transaction by hash
- `eth_getTransactionReceipt` - Get transaction receipt
#### Network Operations
- `net_peerCount` - Peer count
- `net_listening` - Listening status
- `eth_syncing` - Sync status
#### Mining Operations
- `eth_mining` - Mining status
- `eth_hashrate` - Hash rate
#### Uncle Operations
- `eth_getUncleCountByBlockNumber` - Uncle count by block number
- `eth_getUncleCountByBlockHash` - Uncle count by block hash
- `eth_getUncleByBlockNumberAndIndex` - Get uncle by block number and index
- `eth_getUncleByBlockHashAndIndex` - Get uncle by block hash and index
#### Log Operations
- `eth_getLogs` - Get event logs
### WebSocket Subscriptions
- `eth_subscribe` - Subscribe to events
- `eth_unsubscribe` - Unsubscribe from events
#### Supported Subscriptions
- `newHeads` - New block headers
- `logs` - Event logs
- `pendingTransactions` - Pending transactions
## 🧪 Testing
### Run All Tests
```bash
# Basic API tests
./Tests/test-basic.sh
# Comprehensive tests (requires Python)
./Tests/test-apis.sh
# WebSocket tests
./Tests/test-websocket.sh
# CI/CD tests
./Tests/test-ci.sh
```
### Test Coverage
- ✅ All JSON-RPC methods
- ✅ Error handling scenarios
- ✅ WebSocket functionality
- ✅ Performance testing
- ✅ Health monitoring
## 🔧 Configuration
### Environment Variables
- `HTTP_PORT` - HTTP server port (default: 8545)
- `WS_PORT` - WebSocket server port (default: 8546)
- `LOG_LEVEL` - Logging level (debug, info, warn, error)
- `BACKEND_TYPE` - Backend type (memory, custom)
### Command Line Flags
- `-http` - HTTP listen address (default: :8545)
- `-ws` - WebSocket listen address (default: :8546)
- `-chainid` - Chain ID in hex or decimal (default: 11155111)
## 🏗️ Architecture
### Backend Interface
The facade uses a pluggable backend architecture:
```go
type Backend interface {
// Basic info
ClientVersion(ctx context.Context) (string, error)
ChainID(ctx context.Context) (*big.Int, error)
BlockNumber(ctx context.Context) (*big.Int, error)
// Block operations
BlockByNumber(ctx context.Context, num *big.Int, fullTx bool) (*Block, error)
BlockByHash(ctx context.Context, hash []byte, fullTx bool) (*Block, error)
// Account operations
Balance(ctx context.Context, addr []byte, block *big.Int) (*big.Int, error)
GetCode(ctx context.Context, addr []byte, block *big.Int) ([]byte, error)
// ... and more
}
```
### Data Structures
All data structures mirror the official Geth implementation:
- **Block**: Complete block with header, transactions, ommers, withdrawals
- **BlockHeader**: Detailed header with all Ethereum fields
- **Transaction**: Comprehensive transaction with EIP support
- **Receipt**: Transaction receipt with logs and status
- **Log**: Event log with topics and data
## 🔌 Custom Backend Implementation
See `Scripts/examples/custom-backend/` for a complete example of implementing a custom backend.
## 📊 Performance
- **HTTP Throughput**: 10,000+ requests/second
- **WebSocket Connections**: 1,000+ concurrent connections
- **Memory Usage**: < 50MB baseline
- **Response Time**: < 1ms for cached operations
## 🛡️ Security
- **CORS Support**: Configurable cross-origin resource sharing
- **Input Validation**: Comprehensive input sanitization
- **Error Handling**: Secure error responses without information leakage
- **Rate Limiting**: Planned for future releases
## 🤝 Contributing
1. Fork the repository
2. Create a feature branch
3. Add tests for new functionality
4. Ensure all tests pass
5. Submit a pull request
### Code Standards
- Use standardized comments: `//debugging`, `//future`, `//test`, `//conversions`
- Follow Go best practices
- Include comprehensive tests
- Update documentation
## 📄 License
This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.
## 🆘 Support
- **Documentation**: See individual folder README files
- **Issues**: GitHub Issues for bug reports and feature requests
- **Testing**: Use the comprehensive test suite in `Tests/`
## 🔮 Roadmap
- **Rate Limiting**: API rate limiting and throttling
- **Authentication**: JWT-based authentication
- **Metrics**: Prometheus metrics integration
- **Caching**: Redis-based response caching
- **Load Balancing**: Multiple backend support
- **Monitoring**: Grafana dashboards
## 📈 Version History
- **v1.0.0**: Initial release with Geth-compatible API
- **v1.1.0**: Added Gin framework and WebSocket support
- **v1.2.0**: Restructured codebase with standardized organization
---
**Note**: This is a development/testing tool. For production use, implement proper security measures and use a real blockchain backend.