@sometic/validation-yup

Yup SchemaAdapter bridge for @sometic/validation.

This tiny adapter turns a Yup schema into Sometic’s SchemaAdapter contract so forms and validators can share one issue model (ValidationIssue) regardless of how schemas are authored. It maps Yup ValidationError trees into path-aware issues and supports both sync safeParse and async validateAsync.

It exists because Yup remains common in existing apps, while Sometic forms should not hard-depend on any one schema library. Keep Yup as a peer; keep orchestration and issue types in @sometic/validation / @sometic/forms.

Primary exports are createYupSchemaAdapter and issuesFromYupError. Pass any schema-like object that implements validateSync / validate (Yup schemas qualify). The adapter is asserted with assertSchemaAdapter before return so malformed wrappers fail fast.

Pair with @sometic/forms and the validation kernel. Alternatives include native validators, @sometic/validation/define, or @sometic/validation-zod. Foundation context: @sometic/core and the introduction.

Install

pnpm add @sometic/validation-yup yup

npm install @sometic/validation-yup yup

yarn add @sometic/validation-yup yup

Usage

Wrap a Yup schema:

import { object, string } from "yup";
import { createYupSchemaAdapter } from "@sometic/validation-yup";

const schema = object({
    email: string().email().required(),
    password: string().min(8).required(),
});

const adapter = createYupSchemaAdapter(schema);
const result = adapter.safeParse({
    email: "[email protected]",
    password: "secret12",
});

Map a caught Yup error into Sometic issues (for custom flows):

import { issuesFromYupError } from "@sometic/validation-yup";

try {
    schema.validateSync(input, { abortEarly: false });
} catch (error) {
    const issues = issuesFromYupError(error as never);
    console.log(issues);
}

Peers / when not to use

Peer: yup (^1.4.0). Depends on @sometic/validation.

Do not install this package if you are not using Yup. Prefer @sometic/validation-zod for Zod, or native/define schemas when you want zero schema peers.

Docs

• Introduction
• Validation package
• Forms

License

MIT