feat(cache): add subgraph cache invalidation via response extensions#1426

Merged

jensneuse merged 12 commits intofeat/add-caching-supportfrom

jensneuse/cache-invalidation-api

Mar 5, 2026

Commits on Mar 5, 2026

feat(cache): add subgraph cache invalidation via response extensions

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chore: address code review findings

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refactor(test): replace struct-based middleware with function-based interceptor

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refactor(test): replace partial log assertions with full CacheLogEntry comparisons

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fix(cache): deduplicate L2 invalidation deletes and skip redundant delete-before-set

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refactor(test): replace assert.Contains with exact assert.Equal for response bodies

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refactor(test): extract E2E invalidation test helpers for readability

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refactor(test): separate query/mutate calls from assertions for clarity

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refactor(test): extract unit test helpers for extensions cache invalidation

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style: fix gci struct field alignment in test helpers

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test: add E2E tests for error+invalidation and analytics correctness

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fix: address PR review comments for cache invalidation

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