Missing configuration provider for xchangeapi

Author: Romain Follet

DependencyInjection/Configuration.php

@@ -136,6 +136,17 @@ public function getConfigTreeBuilder()
                                 ->end()
                             ->end()
                         ->end()
+                        ->arrayNode('xchangeapi')
+                            ->children()
+                                ->integerNode('priority')->defaultValue(0)->end()
+                                ->scalarNode('api_key')
+                                    ->treatFalseLike(null)
+                                    ->treatTrueLike(null)
+                                    ->isRequired()
+                                    ->cannotBeEmpty()
+                                ->end()
+                            ->end()
+                        ->end()
                         ->arrayNode('currency_converter')
                             ->children()
                                 ->integerNode('priority')->defaultValue(0)->end()