Oracle Service

A self-contained Python service for transmitting analysis signals to an Ethereum-compatible blockchain via smart contract interactions.

What This Project Is

This is a backend service that:

1. Monitors a database for high-severity analysis results.
2. Transmits signed transactions to a Guardian smart contract on-chain.
3. Exposes a FastAPI REST API for managing oracle signals (create, retry, list, stats).
4. Integrates with a DAO governance framework (proposals, voting, IP licensing).

What This Project Is NOT

• This is NOT a price oracle (e.g., Chainlink-style).
• This does NOT make autonomous financial decisions.
• This does NOT require blockchain to function — it runs in simulation mode without Web3 credentials.

Architecture

oracle_service/
├── service.py      — Web3 connection, transaction building, signal monitor
├── routes.py       — FastAPI REST API endpoints
├── config.py       — Environment-based settings
├── db.py           — SQLAlchemy session management
├── worker.py       — Job queue stub (replace with Celery for production)
├── models/         — SQLAlchemy models (OracleSignal, AnalysisResult, Job)
└── schemas/        — Pydantic response schemas

API Endpoints

Prerequisites

• Python 3.10+
• PostgreSQL or SQLite
• Redis (optional, for production job queue)
• Ethereum RPC endpoint (optional, runs in simulation without it)

Installation

pip install -r requirements.txt

Configuration

Set environment variables:

# Required for blockchain mode
export ORACLE_ENABLED=true
export ETHEREUM_RPC=https://your-rpc-endpoint
export ORACLE_PRIVATE_KEY=0x...
export GUARDIAN_CONTRACT=0x...
export DAO_CONTRACT=0x...
export CHAIN_ID=1

# Database
export DATABASE_URL=postgresql://user:pass@localhost/oracle

# Optional
export REDIS_URL=redis://localhost:6379/0
export DEBUG=false

Usage

Run the signal monitor:

python -m oracle_service.service

Run the API server (integrate with FastAPI app):

from fastapi import FastAPI
from oracle_service.routes import router

app = FastAPI()
app.include_router(router, prefix="/oracle")

Smart Contracts

The service interacts with three Solidity contracts (see contracts/test/):

• YOUDAO — Governance: proposals, voting, staking, IP licensing
• YOUAIGuardian — Oracle signal submission, heartbeat monitoring
• TreasuryMultiSig — Multi-signature fund management

Disclaimer

This software is provided "as is" without warranty. The authors are not responsible for any financial losses resulting from blockchain transactions.