End-to-end type safety connects database schemas to frontend React components, catching breaking API changes during build time rather than in production.
1. Layers of End-to-End Type Safety
- Layer 1: Database ORM Typings: Strict schema models defining database collections and field nullability.
- Layer 2: Runtime Payload Validation: Zod schemas validating API request bodies and parsing external data feeds.
- Layer 3: UI Component Props: Strongly-typed React props guaranteeing valid rendering data flows.