code: function (config, ID) {
  
          if (!ID) ID = '/';
  
          if (typeof config[environment] === 'string') hosts[ID] = config[environment];
  
          for (let element in config) {
  
              let elementID = (ID === '/') ? '/' + element : ID + '/' + element;
              if (typeof config[element] === 'object') iterate(config[element], elementID);
  
          }
  
      }
docs: recursively set the applications hosts