List apptemplates

curl --request GET \
  --url https://api.gcore.com/cloud/v1/apptemplates/{project_id}/{region_id} \
  --header 'APIKey: <api-key>'

{
  "count": 1,
  "results": [
    {
      "app_config": [
        {
          "description": "tf2_hostname.description",
          "label": "tf2_hostname.label",
          "name": "tf2_hostname",
          "required": true,
          "type": "string"
        }
      ],
      "category": "gaming",
      "description": "tf2server.description",
      "developer": "Team Fortress 2 team",
      "display_name": "Team Fortress 2 server",
      "id": "tf2server",
      "image_name": "ubuntu-20.04-x64",
      "min_disk": 30,
      "min_ram": 16,
      "min_vcpus": 4,
      "os_name": "Ubuntu 20.04",
      "os_version": 20.04,
      "region_id": 1,
      "short_description": "tf2server.short_description",
      "usage": "tf2server.usage",
      "version": "latest",
      "website": "www.tf2server.com"
    }
  ]
}