Strict Types Form Request Validation

Ensures incoming form request data is of a certain datatype.

About

While Lumen includes many useful validation rules out of the box, it lacks the ability to validate data type as well as content type. There have been a couple complaints about this over the years, but due to the versatile nature of Laravel, it doesn't seem likely that validation rules such as integer or boolean will begin validating that the data is actually of the desired type.

This package provides a way for you to require the incoming data to be of a given type, such as int, bool, float, etc.

Installation

Pre Requisites

1. Lumen v8+
2. PHP 7.4+

Install with Composer

composer require trueifnotfalse/lumen-strict-types-validation

Add to bootstrap/app.php and register the Service Provider.

    $app->register(TrueIfNotFalse\LumenStrictValidation\Providers\StrictValidationProvider::class);

Usage

When constructing validation rules, simply add type-<desired type> to the validation rules string/array.

$rules = [
    'id' => 'required|type-int', # This will require the incoming `id` to be an integer.
];

Failure Messages

The failure message format is:

The :attribute must be of type :type

Where attribute is the attribute being validated (id from the above example) and type is the desired type to validate against (int in the above example).

If the above example failed, we would receive this message:

The id must be of type int