Caching GraphQL APIs

on YouTube ↗21m

" summary

Shows a production full query cache used on Shopify Storefront API that stores entire JSON responses in memcache, generating keys from shop/app, a normalized query hash, variables/operation hash and a version token for invalidation. Cacheability is opt in per GraphQL object type; about 85% cacheable requests are possible. Observed latencies fall from 500ms vs 70ms (miss vs hit). Notes tradeoffs: response size, cache storage, cardinality/evictions and tooling to opt types in.

AI-written summary · about

" chapters (5)

1. 0:00Start
2. 6:05API Generalizations
3. 16:55Cacheable requests
4. 17:35Response time
5. 18:24Downsides

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