Powerful data objects for Laravel

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# Powerful data objects for Laravel

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This package enables the creation of rich data objects which can be used in various ways. Using this package you only need to describe your data once:

- instead of a form request, you can use a data object
- instead of an API transformer, you can use a data object
- instead of manually writing a typescript definition, you can use... 🥁 a data object

A `laravel-data` specific object is just a regular PHP object that extends from `Data`:

```php
use Spatie\LaravelData\Data;

class SongData extends Data
{
    public function __construct(
        public string $title,
        public string $artist,
    ) {
    }
}
```

By extending from `Data` you enable a lot of new functionality like:

- Automatically transforming data objects into resources (like the Laravel API resources)
- Transform only the requested parts of data objects with lazy properties
- Automatically creating data objects from request data and validating them
- Automatically resolve validation rules for properties within a data object
- Make it possible to construct a data object from any type you want
- Add support for automatically validating data objects when creating them
- Generate TypeScript definitions from your data objects you can use on the frontend
- Save data objects as properties of an Eloquent model
- And a lot more ...

Why would you be using this package?

- You can be sure that data is typed when it leaves your app and comes back again from the frontend which makes a lot less errors
- You don't have to write the same properties three times (in a resource, in a data transfer object and in request validation)
- You need to write a lot less of validation rules because they are obvious through PHP's type system
- You get TypeScript versions of the data objects for free

## Are you a visual learner?

In this talk, given at Laracon, you'll see [an introduction to Laravel Data](https://www.youtube.com/watch?v=f4QShF42c6E&t=29110s).

## Support us

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We invest a lot of resources into creating [best in class open source packages](https://spatie.be/open-source). You can support us by [buying one of our paid products](https://spatie.be/open-source/support-us).

We highly appreciate you sending us a postcard from your hometown, mentioning which of our package(s) you are using. You'll find our address on [our contact page](https://spatie.be/about-us). We publish all received postcards on [our virtual postcard wall](https://spatie.be/open-source/postcards).

## Documentation

You will find full documentation on the dedicated [documentation](https://spatie.be/docs/laravel-data/v3/introduction) site.

## Testing

```bash
composer test
```

## Changelog

Please see [CHANGELOG](CHANGELOG.md) for more information on what has changed recently.

## Contributing

Please see [CONTRIBUTING](https://github.com/spatie/.github/blob/main/CONTRIBUTING.md) for details.

## Security Vulnerabilities

Please review [our security policy](../../security/policy) on how to report security vulnerabilities.

## Credits

- [Ruben Van Assche](https://github.com/rubenvanassche)
- [Aidan Casey](https://github.com/aidan-casey) (Validation Attributes)
- [All Contributors](../../contributors)

## License

The MIT License (MIT). Please see [License File](LICENSE.md) for more information.

