Validate

The validate middleware checks the next state against a Standard Schema v1 validator before committing the update.

import { validate } from '@ilokesto/state/middleware';
import { z } from 'zod'; // Zod supports Standard Schema v1

const schema = z.object({ count: z.number().min(0) });
const store = validate(schema)({ count: 0 });

Features

• Standard Schema v1: Compatible with any schema library that supports Standard Schema v1 (e.g., Zod, Valibot, ArkType).
• Blocking Validation: Invalid results are logged and the update is aborted before it reaches the store.

Limitations

• Async Support: Async schema validation is rejected by the current implementation. Only synchronous validation is supported.
• Blocking: Since validation occurs before the update is committed, expensive validation logic may impact UI responsiveness.