dolibarr-api-bundle/src/DependencyInjection/Configuration.php

<?php
declare(strict_types=1);

namespace Magdev\DolibarrApiBundle\DependencyInjection;

use Symfony\Component\Config\Definition\Builder\TreeBuilder;
use Symfony\Component\Config\Definition\ConfigurationInterface;

/**
 * @author Marco Grätsch <magdev3.0@gmail.com>
 */
final class Configuration implements ConfigurationInterface
{
    public function getConfigTreeBuilder(): TreeBuilder
    {
        $treeBuilder = new TreeBuilder(name: 'magdev_dolibarr_api');
        $rootNode = $treeBuilder->getRootNode();
        $rootNode->children()
                ->scalarNode(name: 'baseUri')
                    ->isRequired()
                    ->cannotBeEmpty()
                    ->example(example: 'http://localhost')
                ->end()
                ->scalarNode(name: 'token')
                    ->isRequired()
                    ->cannotBeEmpty()
                    ->example(example: 'your-secret-api-token')
                ->end()
                ->booleanNode(name: 'verifyHttps')
                    ->defaultTrue()
                ->end()
            ->end()
        ;

        return $treeBuilder;
    }
}