{
  "version": "1.3",
  "parameters": {
    "Region": {
      "type": "string",
      "builtIn": "AWS::Region"
    },
    "Endpoint": {
      "type": "string"
    }
  },
  "rules": [
    {
      "documentation": "endpoint is set and is a valid URL",
      "conditions": [
        {
          "fn": "isSet",
          "argv": [
            {
              "ref": "Endpoint"
            }
          ]
        },
        {
          "fn": "parseURL",
          "argv": [
            "{Endpoint}"
          ],
          "assign": "url"
        }
      ],
      "rules": [
        {
          "conditions": [
            {
              "fn": "booleanEquals",
              "argv": [
                {
                  "fn": "getAttr",
                  "argv": [
                    {
                      "ref": "url"
                    },
                    "isIp"
                  ]
                },
                true
              ]
            }
          ],
          "endpoint": {
            "url": "{url#scheme}://{url#authority}{url#normalizedPath}is-ip-addr"
          },
          "type": "endpoint"
        },
        {
          "conditions": [
            {
              "fn": "stringEquals",
              "argv": [
                "{url#path}",
                "/port"
              ]
            }
          ],
          "endpoint": {
            "url": "{url#scheme}://{url#authority}/uri-with-port"
          },
          "type": "endpoint"
        },
        {
          "conditions": [
            {
              "fn": "stringEquals",
              "argv": [
                "{url#normalizedPath}",
                "/"
              ]
            }
          ],
          "endpoint": {
            "url": "https://{url#scheme}-{url#authority}-nopath.example.com"
          },
          "type": "endpoint"
        },
        {
          "conditions": [],
          "endpoint": {
            "url": "https://{url#scheme}-{url#authority}.example.com/path-is{url#path}"
          },
          "type": "endpoint"
        }
      ],
      "type": "tree"
    },
    {
      "error": "endpoint was invalid",
      "conditions": [],
      "type": "error"
    }
  ]
}