On this page you'll find instructions on how to use the importer's command line.
This page assumes you're self-hosting the import tool, although these commands also work when using Docker. The commands are the same for each importer:
# self hosted php artisan importer:import config.json # docker docker exec -it <container> php artisan importer:import config.json
config.json should point (obviously) to your JSON file. You can get one by importing once through the user interface first.
When you're using Docker, and you're not using the instant import commands make sure that you've mounted a directory with your files in it. This is something you must have done when you launched the Docker container, using for example