🧠 TTL Monitor + Hashtag Rotator
Track Redis key expiry, prevent silent data loss, and rotate civic hashtags in real time…
🔍 What Is a TTL Monitor?
TTL stands for Time-To-Live. In Redis, it defines how long a key remains in memory before it expires.
A TTL monitor watches Redis keys and alerts or refreshes them before they vanish silently.
🧠 Why Pair It With Your Hashtag Rotator?
- Prevents loss of civic hashtag queues
- Auto-refreshes or repopulates keys before expiry
- Logs expiry events for audit and diagnostics
✅ TTL monitoring ensures your civic ticker never goes blank due to expired Redis keys.
🛠️ Sample TTL Monitor Code (Node.js)
import { Redis } from "@upstash/redis"; const redis = Redis.fromEnv(); async function checkTTL(key) { const ttl = await redis.ttl(key); console.log(`TTL for ${key}: ${ttl} seconds`); if (ttl < 300) { console.warn(`⚠️ ${key} is about to expire!`); // Optionally refresh or alert } } setInterval(() => checkTTL("hashtag:queue"), 60000); // check every minute 📡 Dashboard Integration Ideas
- Display remaining TTL for each Redis key
- Trigger auto-refresh when TTL drops below threshold
- Log TTL events to Redis list:
hashtag:log - Pair with region toggles for
hashtag:queue:kiambu,hashtag:queue:eldoret
📚 Glossary (Kid-Friendly)
| Term | Meaning |
|---|---|
| TTL | Time-to-live: how long something stays before it disappears |
| Monitor | A tool that watches and checks something regularly |
| Redis | A fast memory tool that stores and retrieves data quickly |
| Hashtag Queue | A list of civic hashtags that rotate one by one |
| Audit Log | A record of what happened and when |
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