Create Rich Data Objects in Laravel

Laravel Data is a package by Spatie that enables the creation of rich data objects which can be used for form requests, data transformers, and more.

🚀 Our newest package, laravel-data, has been released. This one can replace Form Request,s API resources, it will help you avoiding describing data structures multiple times

📘 Docs: https://t.co/vunXA2XLj8
✍️ Post: https://t.co/rNMU3sjRGU
🏅 Excellent work by @rubenvanassche pic.twitter.com/NDogbo6JUU
— Freek Van der Herten 🔭 (@freekmurze) October 28, 2021

The API is simple for data objects but unlocks powerful featured by extending the package's Data class:

use Spatie\LaravelData\Data;
 
class SongData extends Data
{
    public function __construct(
        public string $title,
        public string $artist,
    ) {
    }
}

According to the documentation, extending the package's Data class gives you valuable features for working with data across various aspects of Laravel:

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 ...

Here's an example from the documentation of creating a data object from an Eloquent model:

// Create a SongData instance from a model
SongData::from(Song::firstOrFail($id));
 
// Create data objects, that could possibly be null
SongData::optional(null); // returns null

The Laravel Data package will find the required properties from the model and use them to construct this data object.

A benefit of using this package is that you don't have to write the same properties in multiple places, such as a resource, a data transfer object, and request validation.

The Laravel data package also includes flexible and advanced features:

Eloquent casting
Transform data objects to TypeScript definitions
Casts — transform values into complex types
Transformers — transform complex values into simple types
Validation Rule Inferring
Data Object validation attributes using PHP 8.0 attributes

You can learn more about this package, get full installation instructions, and view the source code on GitHub. Also, the author of this package, Ruben Van Assche, wrote about how to Avoid describing your data multiple times in a Laravel app using laravel-data.