# Laravel custom request route parameters validation

Override the `validationData()` function to apply validation rules to the **URL parameters**.

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;

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

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        return [
            'start_date' => 'required|date_format:Y-m-d',
            'end_date' => 'required|date_format:Y-m-d|after_or_equal:start_date'
        ];
    }

    /**
     * Use route parameters for validation.
     * @return array
     */
    public function validationData()
    {
        return $this->route()->parameters();
    }
}

###### tags: `Laravel` `Request`