Validators for Lunora: the v.* validator suite with end-to-end return-type inference
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---
Daniel Bannert's open source work is supported by the community on GitHub Sponsors
---
The `v` validator namespace for Lunora — a small runtime validator suite that doubles as a schema descriptor. Every validator carries a runtime `parse` / `safeParse` plus a phantom type that `Infer<…>` reads to recover the TypeScript type end-to-end. It also speaks [Standard Schema](https://standardschema.dev) in both directions. Usually consumed transitively via [`@lunora/server`](https://www.npmjs.com/package/@lunora/server), which re-exports `v`.
Part of the [Lunora](https://github.com/anolilab/lunora) framework — a type-safe, real-time backend on Cloudflare Workers + Durable Objects with a Vite-first DX.
## Install
```sh
npm install @lunora/values
```
```sh
yarn add @lunora/values
```
```sh
pnpm add @lunora/values
```
## Usage
```ts
import { type Infer, v } from "@lunora/values";
const Message = v.object({
id: v.id("messages"),
body: v.string(),
edited: v.optional(v.boolean()),
status: v.union(v.literal("draft"), v.literal("sent")),
});
type Message = Infer;
// { id: Id<"messages">; body: string; edited?: boolean; status: "draft" | "sent" }
const parsed = Message.parse(input); // throws ValidationError on mismatch
const result = Message.safeParse(input);
if (!result.ok) console.error(result.error.path, result.error.expected);
```
> This README covers the basics. For the full API, options, and guides, see the **[documentation](https://lunora.sh/docs/api/values)**.
## Related
- [`@lunora/server`](https://www.npmjs.com/package/@lunora/server) — re-exports `v` for single-import usage in your functions.
- [`@lunora/codegen`](https://www.npmjs.com/package/@lunora/codegen) — reads validator metadata to emit the typed data model.
## Supported Node.js Versions
Libraries in this ecosystem make the best effort to track [Node.js' release schedule](https://github.com/nodejs/release#release-schedule).
Here's [a post on why we think this is important](https://medium.com/the-node-js-collection/maintainers-should-consider-following-node-js-release-schedule-ab08ed4de71a).
## Contributing
If you would like to help take a look at the [list of issues](https://github.com/anolilab/lunora/issues) and check our [Contributing](https://github.com/anolilab/lunora/blob/alpha/.github/CONTRIBUTING.md) guidelines.
> **Note:** please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.
## Credits
- [Daniel Bannert](https://github.com/prisis)
- [All Contributors](https://github.com/anolilab/lunora/graphs/contributors)
## Made with ❤️ at Anolilab
This is an open source project and will always remain free to use. If you think it's cool, please star it 🌟. [Anolilab](https://www.anolilab.com/open-source) is a Development and AI Studio. Contact us at [hello@anolilab.com](mailto:hello@anolilab.com) if you need any help with these technologies or just want to say hi!
## License
The Lunora values package is open-sourced software licensed under the [FSL-1.1-Apache-2.0][license].
[license-badge]: https://img.shields.io/badge/license-FSL--1.1--Apache--2.0-blue.svg?style=for-the-badge
[license]: https://github.com/anolilab/lunora/blob/alpha/LICENSE.md
[npm-version-badge]: https://img.shields.io/npm/v/@lunora/values?style=for-the-badge
[npm-version]: https://www.npmjs.com/package/@lunora/values
[npm-downloads-badge]: https://img.shields.io/npm/dm/@lunora/values?style=for-the-badge
[npm-downloads]: https://www.npmjs.com/package/@lunora/values
[prs-welcome-badge]: https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=for-the-badge
[prs-welcome]: https://github.com/anolilab/lunora/blob/alpha/.github/CONTRIBUTING.md
[typescript-badge]: https://img.shields.io/badge/Typescript-294E80.svg?style=for-the-badge&logo=typescript
[typescript-url]: https://www.typescriptlang.org/