fetch the public IP addresses of your n8n instance

Why If you need to use n8n to connect to service providers of yours, some of which happen to rely on firewall white-listing as part of their access control, you'll need to determine or verify the public IP addresses of your n8n instance(s). How does it work The webhook, upon invocation, will use Http Request node to request public IP address information from ++api.ipify.org++ in json format, for 10 times, then aggregate results to an array. The reason to repeat, is to get all the potential public IP addresses of your n8n instance. Often than not, enterprises or network providers deploy at least a pair of gateway devices at the border for redundancy. built-in array functions in a javascript e

Help me set up the n8n workflow "fetch the public IP addresses of your n8n instance" (https://n8n.io/workflows/4750). It uses: HTTP Request. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.