Relay Concepts
summary
Relay claims the Relay compiler deduplicates fragments, generates Flow/TypeScript types and emits optimized GraphQL queries; the Relay Environment wires a network layer, normalized store and garbage collector; pagination hooks load next and previous pages and pagination supports forward and backward with Suspense; mutations offer optimistic updates, prevention of duplicate sends and cancellation on unmount and mutations support optimistic updates and cancellation; subscriptions over WebSocket push real‑time updates into the store; module directives let the GraphQL shape drive code splitting and module directives enable GraphQL-driven code splitting; a mini Facebook prototype is built and works end to end.
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chapters (7)
- 0:00Intro
- 1:51Relay Environment
- 3:49Relay Interface
- 5:27Pagination
- 7:09Mutation
- 8:57Description hooks
- 10:39Outro
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