box:app:adpool:{adType} – JSON array scoped exclusively by the Prisma AdType enum (no adsModuleId).
app:ad:by-id:{adId} – JSON object for a single ad, used by placement services and homepage caches.
Payload schema
All cached entries must consist of the following fields only: id, adType, advertiser, title, adsContent, adsCoverImg, adsUrl, imgSource, startDt, expiryDt, seq.
Records are included only when status === 1 and the current epoch-second window satisfies startDt <= now and (expiryDt === 0 || expiryDt >= now).
Ordering inside the pool is strictly ascending by seq; the array represents that ordering so readers can respect ad priority.
Timestamps (startDt, expiryDt) stay as BigInt epoch seconds.
Value type & TTL
box:app:adpool:{adType} is stored as a JSON string (array) and has no TTL; cache rebuilds overwrite and regenerate it via the ad-pool service.
app:ad:by-id:{adId} is stored as JSON (object) with EX of 300 seconds (set from the mgnt cache-sync/warmup services). Readers expect this short TTL to keep per-ad payloads fresh.
Migration notes
Writers must drop adsModuleId completely and rely on adType for both pool entries and per-ad caches. Legacy code should map module IDs to ad types only during migration, never store them in Redis.
