🔁 Embed TTL in Your Hashtag Rotator—Redis Logic for Real-Time Civic Dashboards

🧠 Hashtag Rotator Code Structure

Audit-grade breakdown of Node.js folder layout and serverless roles for civic modules…

🧠 What This Code Structure Represents

This is a typical Node.js project folder layout, likely stored in a GitHub repository. Each .js file is a JavaScript module that handles a specific part of your Hashtag Rotator Service. Here's what each folder and file likely does:

🔧 /services

• queueManager.js: Manages the Redis-backed hashtag queue—push, pop, TTL logic, fallback.
• hashtagLoader.js: Loads fresh hashtags from external sources (e.g., Trends24), parses them, and feeds them into the queue.

🌐 /routes/api

• rotate.js: An API endpoint that serves the next hashtag from the queue. This is what your frontend or dashboard calls to rotate hashtags.

⏱️ /jobs

• ttlMonitor.js: A scheduled job (cron or serverless trigger) that checks Redis TTL and refreshes the queue if it's about to expire.

🧰 /lib

• redis.js: Initializes and exports your Redis client (e.g., Upstash or ioredis). Used across all modules.

✅ Are These .js Files in a GitHub Repository?

Yes—this layout is standard for GitHub-based Node.js services. Each file would be versioned, committed, and pushed to your repository. You’d likely see this structure in your repo root:

📁 services/
📁 routes/
📁 jobs/
📁 lib/
📄 package.json
📄 README.md

☁️ Which Ones Are Serverless?

Serverless means the code runs on-demand (e.g., via AWS Lambda, Vercel, or Cloudflare Workers) without a persistent server. Based on this layout:

✅ Likely Serverless:

• rotate.js → API endpoint: can be deployed as a serverless function
• ttlMonitor.js → Scheduled job: ideal for serverless cron (e.g., GitHub Actions, Vercel Cron, Upstash Scheduler)

❌ Not Serverless by Default:

• queueManager.js, hashtagLoader.js, redis.js → These are utility modules. They support serverless functions but aren’t serverless themselves.

🧩 Summary Table

File	Role	Serverless?
queueManager.js	Queue logic	❌ Utility module
hashtagLoader.js	Hashtag ingestion	❌ Utility module
rotate.js	API endpoint	✅ Serverless-ready
ttlMonitor.js	TTL refresh job	✅ Serverless cron
redis.js	Redis client setup	❌ Shared config

📚 Glossary (Kid-Friendly)

Term	Meaning
Serverless	Code that runs only when needed, without managing a full-time server
Redis	A fast memory tool that stores and retrieves data quickly
TTL	Time-to-live: how long something stays before it disappears
API	A way for software to talk to other software
Module	A file that handles one job in your code

Author: Peter M. Mutiti | Investigative Journalist & Civic Technologist

MIT License © 2025 Peter M. Mutiti · View License