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Federation and Schema Stitching Testing
18.1🔒The Federation ChallengeWhen using Apollo Federation or schema stitching, multiple subgraph services contribute types and fields to a composed supergraph. Testing…
18.2🔒Federation Test Suite
18.3🔒Key Takeaways- Federation testing verifies that independently-developed subgraphs compose correctly - Critical tests: type resolution, conflict…
18.4🔒ExercisesExercise 18.1 (Starter): Write an introspection test that verifies a federated gateway exposes all expected types from three subgraphs.
18.5🔒Career Translation- Designed and executed a federation test suite for a 3-subgraph GraphQL architecture, verifying type resolution, conflict detection…
18.6🔒Q&AInterview Depth CheckPrompt: Two subgraphs both define a createdAt field on the Product type -- one as String, one as DateTime. How do you detect and prevent…