zod-validators

Validating server action inputs before Prisma writes requires parsing unknown payloads with Zod schemas. Using safeParse ensures invalid titles or priorities return errors instead of throwing exceptions, preventing bad data from reaching the database.

A shared validation schema centralizes rules in a single file, exporting schemas like CreateTodoSchema. This ensures every server action relies on the same constraints, keeping validation consistent and maintaining type safety with inferred inputs.

Mapping a Prisma enum to Zod involves creating a native enum schema that mirrors your database priorities. This enforces valid priority values like MEDIUM during input validation, aligning server action payloads with Prisma constraints.

Zod safeParse prevents invalid data submissions by validating payloads without throwing exceptions. It returns an object containing success status and error details, allowing server actions to gracefully reject invalid titles before database operations.

Exporting inferred types from Zod schemas uses z.infer to generate TypeScript interfaces like CreateTodoInput. This keeps action handlers type-safe by ensuring parameters match schema definitions exactly without manual interface duplication.

Using safeParse instead of parse for server action validation prevents unhandled exceptions from crashing your application. It safely returns validation errors for invalid identifiers or titles, allowing controlled error handling before database writes.