Module response_cache 

Executor-level response cache.

Caches the final projected GraphQL response value (after RBAC filtering, projection, and envelope wrapping) to skip all redundant work on cache hits for the same user + query combination.

This is a second cache tier above the adapter-level row cache:

• Row cache: raw JSONB rows, shared across projection shapes
• Response cache: final serde_json::Value, keyed per (query + security context)

Performance characteristics

Backed by moka::sync::Cache (W-TinyLFU, lock-free reads). Invalidation uses a DashMap reverse index (view name → set of keys), enabling O(k) eviction without scanning the full cache.

Security

The response cache key includes a hash of the SecurityContext fields that affect response content (user_id, roles, tenant_id, scopes, attributes). Different RBAC scopes produce different cache entries.

Structs

ResponseCache

Executor-level cache for projected GraphQL responses.

ResponseCacheConfig

Configuration for the response cache.

Functions

hash_security_context

Hash the security context fields that affect response content.