Overview & Quick Start

Purpose: High-level introduction to the backend, why it exists, and how to get started quickly. Audience: DevOps, backend engineers, integrators, grant reviewers.

Introduction

SmartCache Enhanced Backend is a purpose-built Node.js service that automates contract caching for Arbitrum Stylus deployments. It continuously watches the chain for new Stylus programs, recognizes opt-in signals, runs ROI checks, and — when profitable — places cache bids automatically. The goal is to remove manual monitoring and bidding overhead while providing reliable, auditable automation for production and test environments.

This backend is built for reliability and observability: it uses WebSocket event streaming, structured Winston logging, a MongoDB-backed data layer, and modular services that cleanly separate discovery, ROI calculation, and bid placement.

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Why this exists

Manually discovering contracts, benchmarking gas, picking bid amounts, and submitting transactions is slow, error-prone, and hard to scale. SmartCache Enhanced Backend turns that whole pipeline into a service: developers express intent (via the Rust crate or opt-in events), the backend decides (ROI > threshold?), and the system executes (place bid, track result). This both reduces human error and increases the adoption of Arbitrum’s cache primitives.

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What you get out of the box

• Continuous detection of new Stylus deployments and opt-ins

• ROI-driven bid placement with safety checks (gas estimate, balance validation)

• Real-time monitoring endpoints and contract classification (discovered → checked → opted-in → cached)

• Multi-network awareness (testnet/mainnet) with per-network bid-value caching

• Structured logs, health endpoints, and diagnostic tools for production operations

Quick Start (5 minutes)

1. Clone the repo and install:

git clone <repository-url>
cd smart-cache-script
npm install

1. Copy and edit the environment template:

cp .env.example .env
# edit .env with ARBISCAN_KEY, ALCHEMY_API_KEY, MONGODB_URI, PRIVATE_KEY (optional)

1. Start in dev mode:

npm run dev     # or `npm run dev:ts` if using TypeScript dev entry

1. Basic smoke test:

• Visit GET /status to confirm healthy status.

• Trigger a manual check:

curl -X POST http://localhost:4000/status/analyze/0xYourContractAddress

That’s it — you’ll now have the backend connected to configured network(s) and ready to discover contracts.