### Install Laravel Validated DTO via Composer

Source: https://context7.com/wendelladriel/laravel-validated-dto-docs/llms.txt

This command installs the Laravel Validated DTO package using Composer, a dependency manager for PHP. Ensure Composer is installed and accessible in your project's root directory.

```bash
composer require wendelladriel/laravel-validated-dto
```

--------------------------------

### Configuration File Example

Source: https://github.com/wendelladriel/laravel-validated-dto-docs/blob/main/getting-started/configuration.md

An example of the `validated-dto.php` configuration file. This file allows you to set the default namespace for your DTOs and configure the 'require_casting' option, which enforces explicit cast types for DTO properties.

```php
<?php

return [

    /*
    |--------------------------------------------------------------------------
    | NAMESPACE
    |--------------------------------------------------------------------------
    |
    | The namespace where your DTOs will be created.
    |
    */

    'namespace' => 'App\\DTOs',

    /*
    |--------------------------------------------------------------------------
    | REQUIRE CASTING
    |--------------------------------------------------------------------------
    |
    | If this is set to true, you must configure a cast type for all properties of your DTOs.
    | If a property doesn't have a cast type configured it will throw a
    | \WendellAdriel\ValidatedDTO\Exceptions\MissingCastTypeException exception
    |
    */

    'require_casting' => false,
];

```

--------------------------------

### Implement SimpleDTO for Data Transformation

Source: https://context7.com/wendelladriel/laravel-validated-dto-docs/llms.txt

Provides an example of using SimpleDTO to handle data casting and property mapping without the overhead of validation. This is ideal for lightweight data objects that require transformation but not strict input checking.

```php
class SimpleUserDTO extends SimpleDTO
{
    public string $name;
    protected function mapData(): array
    {
        return ['username' => 'name'];
    }
    protected function casts(): array
    {
        return ['name' => new StringCast()];
    }
}

$dto = SimpleUserDTO::fromArray(['username' => 'John Doe']);
```

--------------------------------

### Install and Configure TypeScript Transformer

Source: https://github.com/wendelladriel/laravel-validated-dto-docs/blob/main/basics/generating-typescript-definitions.md

Install the necessary composer package and publish the configuration file to enable TypeScript generation for Laravel projects.

```bash
composer require spatie/typescript-transformer
php artisan vendor:publish --provider="Spatie\LaravelTypeScriptTransformer\TypeScriptTransformerServiceProvider"
```

--------------------------------

### Configure Laravel Validated DTO

Source: https://context7.com/wendelladriel/laravel-validated-dto-docs/llms.txt

This is an example of the published configuration file (`config/dto.php`). It allows you to set the default namespace for your DTOs and enforce strict casting rules.

```php
<?php
// config/dto.php

return [
    // The namespace where your DTOs will be created
    'namespace' => 'App\\DTOs',

    // If true, all properties must have a cast type configured
    // Throws MissingCastTypeException if a property lacks a cast type
    'require_casting' => false,
];
```

--------------------------------

### Generate TypeScript Definitions for DTOs

Source: https://context7.com/wendelladriel/laravel-validated-dto-docs/llms.txt

Provides the configuration steps to export Laravel DTOs into TypeScript interfaces. This process involves installing the transformer package, updating the configuration file, and running the generation command.

```bash
# Step 1: Install the required package
composer require spatie/typescript-transformer

# Step 2: Publish the config
php artisan vendor:publish --provider="Spatie\LaravelTypeScriptTransformer\TypeScriptTransformerServiceProvider"
```

```php
<?php
// config/typescript-transformer.php

return [
    'collectors' => [
        Spatie\TypeScriptTransformer\Collectors\DefaultCollector::class,
        Spatie\TypeScriptTransformer\Collectors\EnumCollector::class,
        WendellAdriel\ValidatedDTO\Support\TypeScriptCollector::class,
    ],

    'transformers' => [
        Spatie\LaravelTypeScriptTransformer\Transformers\SpatieStateTransformer::class,
        Spatie\TypeScriptTransformer\Transformers\EnumTransformer::class,
        Spatie\TypeScriptTransformer\Transformers\SpatieEnumTransformer::class,
        Spatie\LaravelTypeScriptTransformer\Transformers\DtoTransformer::class,
        WendellAdriel\ValidatedDTO\Support\TypeScriptTransformer::class,
    ],
];
```

```bash
# Step 4: Generate TypeScript definitions
php artisan typescript:transform
```

--------------------------------

### Automatic DTO Creation from Form Request in PHP

Source: https://github.com/wendelladriel/laravel-validated-dto-docs/blob/main/basics/creating-dto-instances.md

Explains how DTOs can be automatically instantiated when type-hinted as a Form Request in controller methods starting from v3. This streamlines controller logic by handling DTO creation implicitly.

```php
public function store(UserDTO $dto): JsonResponse
{
    // ...
}
```

--------------------------------

### Integrate Lazy DTO with Livewire (PHP)

Source: https://github.com/wendelladriel/laravel-validated-dto-docs/blob/main/basics/lazy-validation.md

Provides an example of creating a DTO that is compatible with Livewire's `Wireable` trait and also utilizes lazy validation. This combines the benefits of deferred validation with Livewire component integration.

```php
use Livewire\Wireable as LivewireWireable;
use WendellAdriel\ValidatedDTO\Concerns\Wireable;

class MyDTO extends ValidatedDTO implements LivewireWireable
{
    use Wireable;
    
    public bool $lazyValidation = true;
}

```

--------------------------------

### Define Validation Rules using rules() Method

Source: https://context7.com/wendelladriel/laravel-validated-dto-docs/llms.txt

This PHP example shows how to define validation rules for a `ValidatedDTO` using the `rules()` method. It supports standard Laravel validation rules, including the `Password` rules for secure password validation.

```php
<?php

namespace App\DTOs;

use Illuminate\Validation\Rules\Password;
use WendellAdriel\ValidatedDTO\ValidatedDTO;

class UserDTO extends ValidatedDTO
{
    public string $name;
    public string $email;
    public string $password;

    protected function rules(): array
    {
        return [
            'name'     => ['required', 'string'],
            'email'    => ['required', 'email'],
            'password' => [
                'required',
                Password::min(8)
                    ->mixedCase()
                    ->letters()
                    ->numbers()
                    ->symbols()
                    ->uncompromised(),
            ],
        ];
    }
}
```

--------------------------------

### Configure Laravel Validated DTO settings

Source: https://github.com/wendelladriel/laravel-validated-dto-docs/blob/main/getting-started/upgrade-guide.md

The updated configuration file allows developers to define the DTO namespace and enforce strict property casting. This file should be published or merged when upgrading to version 3.

```php
<?php

return [

    /*
    |--------------------------------------------------------------------------
    | NAMESPACE
    |--------------------------------------------------------------------------
    |
    | The namespace where your DTOs will be created.
    |
    */

    'namespace' => 'App\\DTOs',

    /*
    |--------------------------------------------------------------------------
    | REQUIRE CASTING
    |--------------------------------------------------------------------------
    |
    | If this is set to true, you must configure a cast type for all properties of your DTOs.
    | If a property doesn't have a cast type configured it will throw a
    | \\WendellAdriel\\ValidatedDTO\\Exceptions\\MissingCastTypeException exception
    |
    */

    'require_casting' => false,
];
```

--------------------------------

### Utilize Built-in Type Casters for Complex Data Structures

Source: https://context7.com/wendelladriel/laravel-validated-dto-docs/llms.txt

Provides examples of various built-in casters available in ValidatedDTO, including support for collections, nested DTOs, Enums, and Eloquent Models. These casters handle complex data transformations and validation requirements.

```php
<?php

namespace App\DTOs;

use App\Models\User;
use WendellAdriel\ValidatedDTO\ValidatedDTO;
use WendellAdriel\ValidatedDTO\Casting\ArrayCast;
use WendellAdriel\ValidatedDTO\Casting\BooleanCast;
use WendellAdriel\ValidatedDTO\Casting\CarbonCast;
use WendellAdriel\ValidatedDTO\Casting\CarbonImmutableCast;
use WendellAdriel\ValidatedDTO\Casting\CollectionCast;
use WendellAdriel\ValidatedDTO\Casting\DTOCast;
use WendellAdriel\ValidatedDTO\Casting\EnumCast;
use WendellAdriel\ValidatedDTO\Casting\FloatCast;
use WendellAdriel\ValidatedDTO\Casting\IntegerCast;
use WendellAdriel\ValidatedDTO\Casting\ModelCast;
use WendellAdriel\ValidatedDTO\Casting\ObjectCast;
use WendellAdriel\ValidatedDTO\Casting\StringCast;

enum UserStatus: string {
    case Active = 'active';
    case Inactive = 'inactive';
}

class AddressDTO extends ValidatedDTO
{
    public string $street;
    public string $city;

    protected function rules(): array
    {
        return [
            'street' => ['required', 'string'],
            'city' => ['required', 'string'],
        ];
    }
}

class ComprehensiveDTO extends ValidatedDTO
{
    protected function casts(): array
    {
        return [
            'tags' => new ArrayCast(),
            'scores' => new ArrayCast(new IntegerCast()),
            'is_active' => new BooleanCast(),
            'price' => new FloatCast(),
            'quantity' => new IntegerCast(),
            'name' => new StringCast(),
            'metadata' => new ObjectCast(),
            'created_at' => new CarbonCast(),
            'updated_at' => new CarbonCast('Europe/Lisbon'),
            'published_at' => new CarbonCast('UTC', 'Y-m-d'),
            'expires_at' => new CarbonImmutableCast(),
            'items' => new CollectionCast(),
            'users' => new CollectionCast(new DTOCast(AddressDTO::class)),
            'address' => new DTOCast(AddressDTO::class),
            'status' => new EnumCast(UserStatus::class),
            'author' => new ModelCast(User::class),
        ];
    }
}
```

--------------------------------

### Create DTO from Artisan Command Arguments and Options in PHP

Source: https://github.com/wendelladriel/laravel-validated-dto-docs/blob/main/basics/creating-dto-instances.md

Explains how to create a DTO instance using a combination of command-line arguments and options with the static `fromCommand` method. This offers flexibility in defining command inputs.

```php
<?php

use App\DTOs\UserDTO;
use Illuminate\Console\Command;

class CreateUserCommand extends Command
{
    protected $signature = 'create:user {name}
                                        { --email= : The user email }
                                        { --password= : The user password }';

    protected $description = 'Create a new User';

    /**
     * Execute the console command.
     *
     * @return int
     *
     * @throws ValidationException
     */
    public function handle()
    {
        $dto = UserDTO::fromCommand($this);
    }
}
```

--------------------------------

### Create DTO Instances from Various Sources (PHP)

Source: https://context7.com/wendelladriel/laravel-validated-dto-docs/llms.txt

Demonstrates creating DTO instances from arrays, JSON strings, Request objects, Eloquent models, and through type-hint injection in controllers. It covers static methods like `fromArray`, `fromJson`, `fromRequest`, and constructor-based instantiation.

```php
<?php

use AppDTOsUserDTO;
use AppModelsUser;
use IlluminateHttpRequest;

// From array (constructor)
$dto = new UserDTO([
    'name' => 'John Doe',
    'email' => 'john.doe@example.com',
    'password' => 's3CreT!@1a2B'
]);

// From array (static method)
$dto = UserDTO::fromArray([
    'name' => 'John Doe',
    'email' => 'john.doe@example.com',
    'password' => 's3CreT!@1a2B'
]);

// From JSON string
$dto = UserDTO::fromJson('{"name": "John Doe", "email": "john.doe@example.com", "password": "s3CreT!@1a2B"}');

// From Request object
public function store(Request $request): JsonResponse
{
    $dto = UserDTO::fromRequest($request);
    // Process the DTO...
}

// Type-hint injection (like Form Request)
public function store(UserDTO $dto): JsonResponse
{
    // DTO is automatically created from request
    return response()->json(['user' => $dto->toArray()]);
}

// From Eloquent Model (hidden fields are excluded)
$user = User::find(1);
$dto = UserDTO::fromModel($user);
```

--------------------------------

### Create DTO from Artisan Command Options in PHP

Source: https://github.com/wendelladriel/laravel-validated-dto-docs/blob/main/basics/creating-dto-instances.md

Illustrates creating a DTO instance from command-line options using the static `fromCommandOptions` method. Options must be defined in the command's `$signature`.

```php
<?php

use App\DTOs\UserDTO;
use Illuminate\Console\Command;

class CreateUserCommand extends Command
{
    protected $signature = 'create:user { --name= : The user name }
                                        { --email= : The user email }
                                        { --password= : The user password }';

    protected $description = 'Create a new User';

    /**
     * Execute the console command.
     *
     * @return int
     *
     * @throws ValidationException
     */
    public function handle()
    {
        $dto = UserDTO::fromCommandOptions($this);
    }
}
```

--------------------------------

### Create DTOs from Artisan Commands (PHP)

Source: https://context7.com/wendelladriel/laravel-validated-dto-docs/llms.txt

Illustrates how to create DTO instances within Artisan commands using arguments, options, or a combination of both. It includes error handling for `ValidationException`.

```php
<?php

namespace App\Console\Commands;

use App\DTOs\UserDTO;
use Illuminate\Console\Command;
use Illuminate\Validation\ValidationException;

class CreateUserCommand extends Command
{
    protected $signature = 'create:user {name}
                                        { --email= : The user email }
                                        { --password= : The user password }';

    protected $description = 'Create a new User';

    public function handle()
    {
        try {
            // From arguments only
            // $dto = UserDTO::fromCommandArguments($this);

            // From options only
            // $dto = UserDTO::fromCommandOptions($this);

            // From both arguments and options
            $dto = UserDTO::fromCommand($this);

            $this->info("User created: {$dto->name}");
        } catch (ValidationException $e) {
            $this->error('Validation failed: ' . implode(', ', $e->errors()));
            return 1;
        }

        return 0;
    }
}
```

--------------------------------

### Create DTO from Artisan Command Arguments in PHP

Source: https://github.com/wendelladriel/laravel-validated-dto-docs/blob/main/basics/creating-dto-instances.md

Shows how to create a DTO instance from command-line arguments passed to an Artisan command using the static `fromCommandArguments` method. This requires defining arguments in the `$signature`.

```php
<?php

use App\DTOs\UserDTO;
use Illuminate\Console\Command;

class CreateUserCommand extends Command
{
    protected $signature = 'create:user {name} {email} {password}';

    protected $description = 'Create a new User';

    /**
     * Execute the console command.
     *
     * @return int
     *
     * @throws ValidationException
     */
    public function handle()
    {
        $dto = UserDTO::fromCommandArguments($this);
    }
}
```

--------------------------------

### Return Resource DTO from Controller

Source: https://github.com/wendelladriel/laravel-validated-dto-docs/blob/main/basics/resource-dtos.md

Demonstrates how to return a single DTO instance from a controller method using the fromModel static helper. This automatically maps model attributes to the DTO properties.

```php
class UserController extends Controller
{
    public function show(int $id)
    {
        return UserResourceDTO::fromModel(User::findOrFail($id));
    }
}
```

--------------------------------

### Generate Resource DTO via Artisan

Source: https://github.com/wendelladriel/laravel-validated-dto-docs/blob/main/basics/resource-dtos.md

Use the Laravel Artisan CLI to scaffold a new ResourceDTO class. The --resource flag ensures the generated class includes the necessary boilerplate.

```bash
php artisan make:dto UserResourceDTO --resource
```

--------------------------------

### Return Resource DTO Collection

Source: https://github.com/wendelladriel/laravel-validated-dto-docs/blob/main/basics/resource-dtos.md

Shows how to return a collection of DTOs using the collection() method. This ensures every item in the list is transformed into the specified DTO instance.

```php
class UserController extends Controller
{
    public function index()
    {
        return UserResourceDTO::collection(User::all());
    }
}
```

--------------------------------

### Generate DTOs using Artisan Commands

Source: https://context7.com/wendelladriel/laravel-validated-dto-docs/llms.txt

These Artisan commands streamline the creation of different types of DTOs. Use `--simple` for DTOs without validation and `--resource` for API response DTOs. The `dto:stubs` command allows customization of generated DTO templates.

```bash
# Generate a standard ValidatedDTO
php artisan make:dto UserDTO

# Generate a SimpleDTO (no validation)
php artisan make:dto SimpleUserDTO --simple

# Generate a ResourceDTO (for API responses)
php artisan make:dto UserResourceDTO --resource

# Publish stubs to customize generated DTOs
php artisan dto:stubs
```

--------------------------------

### Create DTO Instance from Array in PHP

Source: https://github.com/wendelladriel/laravel-validated-dto-docs/blob/main/basics/creating-dto-instances.md

Demonstrates creating a DTO instance by passing an associative array to the constructor or using the static `fromArray` method. This is a common way to initialize DTOs with data.

```php
$dto = new UserDTO([
    'name' => 'John Doe',
    'email' => 'john.doe@example.com',
    'password' => 's3CreT!@1a2B'
]);
```

```php
$dto = UserDTO::fromArray([
    'name' => 'John Doe',
    'email' => 'john.doe@example.com',
    'password' => 's3CreT!@1a2B'
]);
```

--------------------------------

### Generate SimpleDTO via Artisan

Source: https://github.com/wendelladriel/laravel-validated-dto-docs/blob/main/basics/simple-dtos.md

Use the Laravel Artisan command line interface to scaffold a new SimpleDTO class by passing the --simple flag.

```bash
php artisan make:dto SimpleUserDTO --simple
```

--------------------------------

### Publish Configuration File

Source: https://github.com/wendelladriel/laravel-validated-dto-docs/blob/main/getting-started/configuration.md

This command publishes the configuration file for the Laravel Validated DTO package. It allows you to customize settings like the default namespace for your DTOs and whether casting is strictly required for all properties.

```bash
php artisan vendor:publish --provider="WendellAdriel\ValidatedDTO\Providers\ValidatedDTOServiceProvider" --tag=config
```

--------------------------------

### Publish DTO Stubs for Customization

Source: https://github.com/wendelladriel/laravel-validated-dto-docs/blob/main/basics/generating-dtos.md

This command publishes the DTO stub files to a `stubs` folder at the root of your project, allowing you to customize the structure and content of generated DTOs.

```bash
php artisan dto:stubs
```

--------------------------------

### Map DTO Properties on Instantiation (PHP)

Source: https://context7.com/wendelladriel/laravel-validated-dto-docs/llms.txt

Map incoming data property names to DTO property names using the mapData() method or the Map attribute. This is useful when request data keys differ from DTO property names. Supports nested data mapping and case conversion.

```php
<?php

namespace App\DTOs;

use WendellAdriel\ValidatedDTO\ValidatedDTO;
use WendellAdriel\ValidatedDTO\Attributes\Map;
use WendellAdriel\ValidatedDTO\Attributes\Receive;
use WendellAdriel\ValidatedDTO\Enums\PropertyCase;

// Using mapData() method
class UserDTO extends ValidatedDTO
{
    public string $name;
    public string $email;

    protected function rules(): array
    {
        return [
            'name' => ['required', 'string'],
            'email' => ['required', 'email'],
        ];
    }

    protected function mapData(): array
    {
        return [
            'full_name' => 'name', // Maps incoming 'full_name' to 'name'
        ];
    }
}

// Usage: request has 'full_name', DTO has 'name'
$dto = UserDTO::fromArray(['full_name' => 'John Doe', 'email' => 'john@example.com']);
echo $dto->name; // 'John Doe'

// Using Map attribute
class UserAttributeDTO extends ValidatedDTO
{
    #[Map(data: 'full_name')]
    public string $name;

    public string $email;
}

// Mapping nested data to flat properties
class NameDTO extends ValidatedDTO
{
    public string $first_name;
    public string $last_name;

    protected function mapData(): array
    {
        return [
            'first_name' => 'name.first_name',
            'last_name' => 'name.last_name',
        ];
    }
}

// Input: ['name' => ['first_name' => 'John', 'last_name' => 'Doe']]
// Result: $dto->first_name = 'John', $dto->last_name = 'Doe'

// Using Receive attribute for case conversion
#[Receive(PropertyCase::SnakeCase)]
class CamelCaseDTO extends ValidatedDTO
{
    public string $firstName;
    public string $lastName;
}

// Accept snake_case input, use camelCase properties
$dto = new CamelCaseDTO(['first_name' => 'John', 'last_name' => 'Doe']);
echo $dto->firstName; // 'John'

```

--------------------------------

### Define a Resource DTO

Source: https://github.com/wendelladriel/laravel-validated-dto-docs/blob/main/basics/resource-dtos.md

Create a class extending ResourceDTO to define the structure of your API response. This class implements the Responsable interface, allowing it to be returned directly from controllers.

```php
class UserResourceDTO extends ResourceDTO
{
    public string $name;
    public string $email;
    public int $age;
    // Your DTO methods...
}
```

--------------------------------

### Generate TypeScript Definitions

Source: https://github.com/wendelladriel/laravel-validated-dto-docs/blob/main/basics/generating-typescript-definitions.md

Execute the artisan command to process the registered classes and generate the TypeScript definition file.

```bash
php artisan typescript:transform
```