To use Fortinet FortiGate integration in n8n, start by adding the HTTP Request node to your workflow canvas and authenticate it using a predefined credential type. This allows you to perform custom operations, without additional authentication setup. Once connected, you can make custom API calls to Fortinet FortiGate to query the data you need using the URLs you provide, for example: once set up, you can use the HTTP Request node to create, update, or delete firewall policies by sending the relevant JSON data in the request body. For example, to create a new firewall policy, you'd send a POST request with the necessary details like source, destination, and action parameters. Additionally, you can retrieve logs or status reports by making GET requests, allowing you to monitor firewall activity directly within your n8n workflows.