Laravel Self-Validating Request Example

gistfile1.php

<?php
namespace MyAppName\Http\Requests\Members;

use Illuminate\Contracts\Validation\Validator;
use InternalPackage\Laravel\Traits\SessionFlashNotifierTrait;
use MyAppName\Http\Requests\Request;

class ImportMembersRequest extends Request
{
    use SessionFlashNotifierTrait;
    
    private $rules = [
        'import_csv' => 'required|mimes:csv'
    ];

    public function rules()
    {
        return $this->rules;
    }
    
    protected function failedValidation(Validator $validator)
    {
        $this->notifyFailure('Unable to import members. Please check your input and try again.');
        return parent::failedValidation($validator);
    }
}