zod-schema-validator

Zod schema validation parses incoming API request data against defined schemas like LeadSchema or QuoteSchema. Create schemas in src/schemas, integrate them into API routes using Zod's parse method, and handle ZodError to return validation errors to clients.

Define Zod schemas in a centralized src/schemas directory, then apply them consistently across service layers, API routes, and server actions. This ensures uniform data correctness and simplifies error handling across your application.

Yes, Zod validates server action inputs by parsing form data against schemas before processing. Catch ZodError to display validation feedback directly in your UI, providing immediate user feedback on data correctness.

Zod functions as a standalone validation library requiring no additional dependencies. Install Zod, structure schemas in src/schemas, and integrate parse calls directly into services and routes without external tools.

Catch ZodError when parsing fails and extract detailed error messages from the error object. Return structured error responses to clients describing which fields failed validation and why, enabling client-side correction.

Validate at the service layer for reusable protection across multiple endpoints and server actions; validate at route level for endpoint-specific preprocessing. Layered validation ensures consistency whether data enters through APIs, forms, or internal service calls.