All critical fixes, bug fixes, testing, P2P implementation, and configuration work has been completed.
| Issue | File | Status |
|---|---|---|
| Missing 8 imports | services/node.py |
Fixed |
| Missing aiohttp import | api/internal_api.py |
Fixed |
| Missing aiohttp import | api/external_api.py |
Fixed |
| Missing hashlib import | services/compliance_manager.py |
Fixed |
| Missing os import | services/plugin_manager.py |
Fixed |
| Wrong cryptography API | services/authorisation.py |
Fixed |
| Missing Account import | blockchain/evm_blockchain_interface.py |
Fixed |
| Unused imports | blockchain/blockchain_interface.py |
Cleaned up |
Updated pyproject.toml with:
aiohttp- HTTP APIskademlia- P2P DHT networking (replaced non-existent pygundb)plyvel- LevelDB storagepython-dotenv- Environment configurationpytest,pytest-asyncio,pytest-cov- Testing (dev dependencies)
| Issue | File | Status |
|---|---|---|
Missing await |
api/external_api.py:21 |
Fixed |
Bare except clause |
services/authorisation.py |
Fixed with proper exception handling |
| tx_hash vs receipt inconsistency | blockchain/evm_blockchain_interface.py |
Fixed - send_transaction returns hash, added wait_for_receipt |
| Token transaction bug | services/token_manager.py |
Fixed - properly builds transactions for token operations |
| Placeholder methods | blockchain/evm_blockchain_interface.py |
Implemented with file-based contract artifact loading |
Created comprehensive test suite (58 tests):
tests/conftest.py- Shared fixtures and mockstests/test_data_manager.py- DataManager unit tests (8 tests)tests/test_token_manager.py- TokenManager unit tests (10 tests)tests/test_payment_processor.py- PaymentProcessor unit tests (7 tests)tests/test_compliance_manager.py- ComplianceManager unit tests (7 tests)tests/test_authorisation.py- AuthorizationModule unit tests (8 tests)tests/test_p2p_network.py- P2PNetwork unit tests (34 tests)
Replaced non-existent pygundb with kademlia DHT:
- Kademlia DHT provides decentralized key-value storage
- Full rewrite of
network/p2p_network.py
Core Features:
start()/stop()- Server lifecycle managementsend_data()- Encrypt and store data in DHTget_data()- Retrieve and decrypt data from DHTconnect_to_peer()- Dynamic peer connectionbroadcast_data()- Replicate data across network
Peer Discovery & Management:
- Persistent peer storage - Saves/loads known peers to
data/known_peers.json - Automatic re-bootstrap - Reconnects when peer count drops below minimum
- Peer exchange protocol - Nodes share peer lists via DHT
- Health monitoring - Tracks latency, success rate, prunes dead peers
New APIs:
get_connected_peers()- List all peers with health infoget_healthy_peers()- List only healthy peersget_network_stats()- Network statistics (total/healthy peers, avg latency)
Background Tasks (automatic):
- Health check loop (every 60s)
- Peer exchange loop (every 120s)
- Re-bootstrap loop (every 300s if < 3 peers)
- Created
.env.examplewith all configuration options - Updated
main.pyto load configuration from environment variables - Created directory structure:
contracts/- Contract artifacts (includes sample ERC20Token.json)data/- Database storageplugins/- Plugin directory
poetry installcp .env.example .env
# Edit .env with your configurationpoetry run pytest tests/ -vpoetry run python datamgmtnode/main.pydatamgmtnode/
├── contracts/ # Contract artifacts (NEW)
│ └── ERC20Token.json
├── data/ # Database storage (NEW)
├── datamgmtnode/
│ ├── api/
│ │ ├── external_api.py # External API (port 8081)
│ │ └── internal_api.py # Internal API (port 8080)
│ ├── blockchain/
│ │ ├── blockchain_interface.py
│ │ └── evm_blockchain_interface.py
│ ├── network/
│ │ └── p2p_network.py
│ ├── services/
│ │ ├── authorisation.py
│ │ ├── compliance_manager.py
│ │ ├── data_manager.py
│ │ ├── node.py
│ │ ├── payment_processor.py
│ │ ├── plugin_manager.py
│ │ └── token_manager.py
│ └── main.py
├── plugins/ # Plugin directory (NEW)
├── tests/ # Test suite (NEW)
│ ├── conftest.py
│ ├── test_authorisation.py
│ ├── test_compliance_manager.py
│ ├── test_data_manager.py
│ ├── test_payment_processor.py
│ └── test_token_manager.py
├── .env.example # Environment template (NEW)
├── pyproject.toml # Updated dependencies
└── README.md
These are suggestions for future development:
- Integration Tests - Test full node workflow end-to-end
- API Documentation - Add OpenAPI/Swagger specs for the APIs
- Logging - Add structured logging with configurable levels
- Metrics - Add Prometheus metrics for monitoring
- Docker - Add Dockerfile and docker-compose for containerization
- CI/CD - Add GitHub Actions for automated testing
- Type Hints - Add comprehensive type annotations
- Error Handling - Add custom exception classes
| Category | Items | Status |
|---|---|---|
| Missing imports | 8 | All fixed |
| Missing dependencies | 5 | All added |
| Runtime bugs | 5 | All fixed |
| P2P network | 1 | Fully rewritten with kademlia + discovery |
| Test files | 7 | Created (74 tests) |
| Config files | 2 | Created |
Total files modified: 14 Total files created: 11 Total tests: 74 (all passing)