send commands from website

Hi,
I have installed traccar successfully on Ubuntu server, I can assign devices from web interface, and devices'information stored correctly in the database.

I need to send commands to devices from my website, i've read about that and i guess i should use swagger.
https://www.traccar.org/traccar-api/

The problem is I have totally no background about it and i don't know how can i send commands from my website that can affect the devices.

Any help, please.
Thanks

Swagger file is an API documentation. You can use Swagger UI tool to view it:

http://swagger.io/swagger-ui/