def store_navigate(store_id, category_id = -1, node_id = -1, store_type = 4)
      params = {
          'storeId'    => store_id,
          'categoryId' => category_id,
          'nodeId'     => node_id,
          'storeType'  => store_type
      }
      JSON.parse(api_get('Store.egg', 'storeNavigation', nil, params).body)
    end
def store_navigate(store_id, category_id = -1, node_id = -1, store_type = 4)
      params = {
          'storeId'    => store_id,
          'categoryId' => category_id,
          'nodeId'     => node_id,
          'storeType'  => store_type
      }
      JSON.parse(api_get('Store.egg', 'storeNavigation', nil, params).body)
    end
retrieves information necessary to search for products, given the store_id, category_id, node_id

 @param [Integer] store_id of the store
 @param [Integer] category_id of the store
 @param [Integer] node_id of the store
 @param [Integer] store_type of the store