redis-expert

Redis caching strategies—cache-aside, write-through, and write-behind—optimize application performance by controlling when data flows between your app and Redis. Cache-aside loads on miss, write-through updates both layers synchronously, and write-behind buffers writes to Redis first. Choose based on consistency and latency needs.

Redis Pub/Sub enables real-time message broadcasting to multiple subscribers, while Streams provide persistent, ordered message queues with consumer groups. Pub/Sub suits fire-and-forget notifications; Streams handle durable messaging, replay, and consumer tracking for reliable real-time data processing.

Lua scripting executes multi-command sequences atomically on the Redis server, eliminating race conditions in complex operations. Bun.redis supports script management, letting you define and reuse Lua scripts for atomic transactions, conditional updates, and server-side logic without round trips.

Bun.redis provides native connection pooling and pipelining to batch commands and reduce latency. Robust connection management includes error handling, reconnection strategies, and resource cleanup—essential for production apps handling high throughput and temporary network disruptions.

Strings store binary-safe values; Hashes organize field-value pairs efficiently for objects; Sets store unique, unordered values for membership checks. Choose based on data shape: Strings for scalars, Hashes for structured objects, Sets for deduplication and fast lookups.

Redis Stack extends core Redis with JSON data type for native document storage and RediSearch for full-text indexing. Vector Search enables semantic queries over embeddings. Bun.redis integrates these modules for advanced search, real-time analytics, and AI-driven applications.