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Endigest AI Core Summary
Figma built FigCache, a stateless RESP-wire-protocol proxy service, to address Redis scalability and reliability challenges at scale.
•FigCache acts as a connection multiplexer between client services and ElastiCache Redis clusters, decoupling Redis connection count from client fleet volatility
•The proxy centralizes traffic routing, enforces security posture, and provides end-to-end observability across Figma's entire caching stack
•Since rollout for Figma's main API service in H2 2025, the caching layer achieved six nines of uptime
•First-party client libraries were built as thin wrappers over existing open source Redis clients in Go, Ruby, and TypeScript to minimize migration risk
•Figma chose to build in-house over open source alternatives due to limitations in full Redis command argument extraction, custom command support, and extensibility with proprietary business logic
This summary was automatically generated by AI based on the original article and may not be fully accurate.
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