Price Oracle Node

$15

Chainlink-compatible price oracle node with multi-source aggregation, deviation checks, and heartbeats.

📁 18 files

TOMLTypeScriptConfigYAMLMarkdownJSONDockerPostgreSQLPrometheus

📁 File Structure 18 files

price-oracle-node/ ├── LICENSE ├── README.md ├── config/ │ ├── chains.json │ └── jobs/ │ ├── direct-request.toml │ └── ocr2-price.toml ├── docker/ │ ├── Dockerfile.adapter │ ├── docker-compose.yml │ └── prometheus.yml ├── package.json ├── security-notes.md ├── src/ │ ├── adapter.ts │ ├── health.ts │ ├── metrics.ts │ └── types.ts ├── test/ │ ├── adapter.test.ts │ └── health.test.ts └── tsconfig.json

📖 Documentation Preview README excerpt

Price Oracle Node

Chainlink-compatible oracle node setup with OCR reporting, external adapters, and production-grade monitoring.

Overview

Docker-based oracle node configuration with:

Chainlink-compatible OCR2 job specifications
External adapter template (TypeScript)
Health check and heartbeat monitoring
TLS certificate configuration
Credential rotation scripts
Multi-chain RPC endpoint management
Prometheus metrics exporter

Quick Start


# 1. Copy environment template
cp config/.env.example .env

# 2. Configure your RPC endpoints and credentials
nano .env

# 3. Start the oracle node
docker compose up -d

# 4. Verify health
curl http://localhost:6688/health

Architecture


┌──────────────────────────────────────────┐
│              Docker Compose              │
│  ┌──────────┐  ┌──────────────────────┐  │
│  │ Chainlink│  │   External Adapter   │  │
│  │   Node   │──│    (TypeScript)      │  │
│  └────┬─────┘  └──────────┬───────────┘  │
│       │                   │              │
│  ┌────┴─────┐  ┌──────────┴───────────┐  │
│  │PostgreSQL│  │   Prometheus Metrics  │  │
│  └──────────┘  └──────────────────────┘  │
└──────────────────────────────────────────┘

Files

File	Description
`docker/docker-compose.yml`	Node orchestration
`docker/Dockerfile.adapter`	External adapter image
`src/adapter.ts`	External adapter template
`src/types.ts`	Request/response types
`src/health.ts`	Health check service
`src/metrics.ts`	Prometheus metrics exporter
`config/jobs/ocr2-price.toml`	OCR2 job specification
`config/jobs/direct-request.toml`	Direct request job
`config/.env.example`	Environment template

... continues with setup instructions, usage examples, and more.

📄 Code Sample .yml preview

docker/docker-compose.yml version: "3.8" services: # ── Chainlink Node ───────────────────────────────────────────────── chainlink-node: image: smartcontract/chainlink:2.7.0 restart: unless-stopped ports: - "6688:6688" env_file: - ../config/.env.example environment: - LOG_LEVEL=info - ETH_CHAIN_ID=${CHAIN_ID:-1} - ETH_URL=${ETH_WS_URL} - ETH_HTTP_URL=${ETH_HTTP_URL} - DATABASE_URL=postgresql://chainlink:chainlink@postgres:5432/chainlink?sslmode=disable - CHAINLINK_TLS_PORT=0 - SECURE_COOKIES=false volumes: - chainlink-data:/chainlink depends_on: postgres: condition: service_healthy networks: - oracle-net # ── External Adapter ─────────────────────────────────────────────── external-adapter: build: context: .. dockerfile: docker/Dockerfile.adapter restart: unless-stopped ports: - "8080:8080" - "9090:9090" environment: - ADAPTER_PORT=8080 - METRICS_PORT=9090 - LOG_LEVEL=info networks: - oracle-net # ── PostgreSQL ───────────────────────────────────────────────────── postgres: image: postgres:15-alpine restart: unless-stopped environment: POSTGRES_USER: chainlink POSTGRES_PASSWORD: chainlink # ... 30 more lines ...

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