This is open source Magento 2.x module, feel free to contribute: https://github.com/Eudemon/magento2_auto_import
auto create or update catalog product using cron job based on user configuration
comes with own cron group, log file /var/log/Auto_Import.log
Support translations
clone to app/code/Randy/AutoImport
import setting and location in Store -> Configuration -> Catalog -> AutoImport -> Setting
two modes: create and update (create the catalog product if does not exist, otherwise update attribute) or update
setting for match attributes in Store -> Configuration -> Catalog -> AutoImport -> Attribute
Note that in create mode some attributes are required to be filled for auto create product