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Infrastructure · 2017 Open source

Kong Redis Plugin

Open-source Kong API Gateway plugin for response caching via Redis.

Tech stack

Lua Redis Kong Plugin Framework

The problem

Kong's built-in proxy-cache plugin is memory-only. Distributed deployments need a shared cache across gateway nodes, which means Redis.

Goals

Drop-in replacement for proxy-cache with Redis backing
Configurable TTL and cache keys
Predictable cache invalidation semantics

The solution

Lua plugin using the Kong plugin framework
Redis as the shared cache backend
Configurable TTL, cache keys, and bypass rules

My role

→ Plugin design and implementation in Lua
→ Testing across Kong versions
→ Open-source release and maintenance

UI direction

Config-driven, no UI.

User flows

Request flow

1 Request hits Kong with plugin enabled
2 Plugin checks Redis for a cached response
3 Hit returns cached body, miss forwards upstream and caches response

Key learnings

Kong plugins are a clean distribution boundary for cross-cutting gateway features
Redis as a shared cache is still the most pragmatic choice for multi-node gateways

Want something like Kong Redis Plugin?

I'm open to senior contract work. Let's talk about what you're building.