3dealer/config/checkout.php

<?php

/*
 * Per-site settings for the cart + checkout module (see
 * Modules\Core\Providers\CheckoutModuleServiceProvider). Publishable —
 * artisan vendor:publish --tag=core-config.
 */
return [

    /*
     * Name of the storefront's login route. The checkout's login tab and the
     * confirmation page link to it with `?redirect=<checkout path>`, so the
     * login page must send the shopper back there afterwards. null: no login
     * offered in checkout at all.
     */
    'login_route' => 'login',

    /*
     * Name of the storefront's product-listing route — where confirmation()
     * redirects a visit with no placed order to look at (session expired,
     * direct navigation, a bookmark). route($this, $locale) must resolve.
     */
    'products_route' => 'products',

    /*
     * ISO 3166-1 alpha-3 code fixing checkout to a single country (a hidden
     * field, forced server-side — no country picker shown at all). null (the
     * default) gives the full country/region picker, for a multi-country
     * store. 3dealer is Greece-only for now.
     */
    'store_country_iso3' => 'GRC',

    /*
     * The `purpose` tag CartController expects a product custom field's
     * `file` answer to already carry (see Modules\Core\File\Models\File) —
     * matches whatever purpose string the host's own upload endpoint
     * (extending Modules\Core\File\Http\Controllers\UploadFileController)
     * tags its stored files with. This module never reaches into that
     * host controller directly; this config value is the one shared
     * source of truth between the two.
     */
    'custom_field_upload_purpose' => 'custom-field-upload',

];