vollborn/laravel-request-cast

Allows to cast request values into their supposed types

v1.0.0 2022-08-21 16:20 UTC

Requires

• php: ^8.0
• laravel/framework: ^9.0

MIT

• Oliver Vollborn

README

Laravel Request Cast is a small package to cast Laravels request values into their supposed types.

For example: If you build an API and validate a request parameter as int, the value attached to the request object can still be a string. It only validates the content, but does not change its data type.

This JSON body would resolute as a string in your controller, because it is a string in the request itself too:

{
    "integer": "1251"
}

This package aims to fix this inconvenience. The same request will resolute as an int in your controller, if used correctly.

Installation

This package is available at composer. To install it, run:

composer require vollborn/laravel-request-cast

Usage

There are two ways of using this package.
You can either...

1. Use it as an extended class
2. or as a trait if you need to extend something else.

Both will work the same way, they are just different writing styles.

Using a parent class

This is Laravel's default request.

use Illuminate\Foundation\Http\FormRequest;

class TestRequest extends FormRequest
{
    ...

Once we change the extended class, we should be up and running!

use Vollborn\LaravelRequestCast\Classes\CastedRequest;

class TestRequest extends CastedRequest
{
    ...

Using a trait

Simply add the "Casts" trait to your request.
That should be it.

use Illuminate\Foundation\Http\FormRequest;
use Vollborn\LaravelRequestCast\Traits\Casts;

class TestRequest extends FormRequest
{
    use Casts;
    ...

Casting values

Casting values is pretty easy. You just need to add the "casts" function to your request, just like the "rules" function:

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;
use Vollborn\LaravelRequestCast\Traits\Casts;

class TestRequest extends FormRequest
{
    use Casts;

    /**
     * @return array
     */
    public function casts(): array
    {
        return [
            'test' => CastTypes::BOOLEAN
        ];
    }

    ...
}

This request would cast the "test" parameter to a boolean.

Following cast types are available:

# Strings
CastTypes::STRING

# Booleans
CastTypes::BOOLEAN
CastTypes::BOOL

# Integers
CastTypes::INTEGER
CastTypes::INT

# Arrays
CastTypes::ARRAY

Please note:
Casted values can be null. For example: If you cast to a boolean, the value can be true, false OR null.
This is supposed to be like that. If the value is null, your validation / rules will check if it is valid or not.

Examples

Here are some example requests using casts. Feel free to copy them and try it out!

Using a parent class

<?php

namespace App\Http\Requests;

use Vollborn\LaravelRequestCast\Classes\CastedRequest;
use Vollborn\LaravelRequestCast\Classes\CastTypes;

class TestRequest extends CastedRequest
{
    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize(): bool
    {
        return true;
    }

    /**
     * @return array
     */
    public function casts(): array
    {
        return [
            'test' => CastTypes::BOOLEAN
        ];
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array<string, mixed>
     */
    public function rules(): array
    {
        return [
            'test' => 'nullable|boolean'
        ];
    }
}

Using a trait

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;
use Vollborn\LaravelRequestCast\Classes\CastTypes;
use Vollborn\LaravelRequestCast\Traits\Casts;

class TestRequest extends FormRequest
{
    use Casts;

    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize(): bool
    {
        return true;
    }

    /**
     * @return array
     */
    public function casts(): array
    {
        return [
            'test' => CastTypes::BOOLEAN
        ];
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array<string, mixed>
     */
    public function rules(): array
    {
        return [
            'test' => 'nullable|boolean'
        ];
    }
}