After you have downloaded the code from CodeCanyon, log in to your admin panel as admin and go to the "Apps" section. there is an "Add" button where you can upload the zip file you got from CodeCanyon.
Convert API is used for invoice to pdf creation in runtime. This setup is optional.
Setup as vendor
When vendors go to their management site ( or you as admin to the restaurant setup ), in the apps section they will be able to set up Print Node ( https://www.printnode.com/en ). Print Node allows us to connect any printer to the Platform with the PrintNode Client and an easy-to-use JSON API.
Create an account in Print Node and get PrintNode API Key
Create an account in PrintNode.com and choose your desired pricing. You can start free.
Enter the API Key in the Prinit Node API Key fields.