Cloudflare Docs
Ruleset Engine
Cloudflare Docs
Ruleset Engine
GitHub icon
Visit Ruleset Engine on GitHub
Set theme to dark (⇧+D)
  1. Products
  2. Ruleset Engine
  3. Rulesets API
  4. Add rule to ruleset

Add rule to ruleset

Adds a single rule to an existing ruleset. Use this endpoint to add a rule without having to include all the existing ruleset rules in the request.

Use one of the following API endpoints:

OperationMethod + Endpoint
Create an account ruleset rulePOST /accounts/<ACCOUNT_ID>/rulesets/<RULESET_ID>/rules
Create a zone ruleset rulePOST /zones/<ZONE_ID>/rulesets/<RULESET_ID>/rules

Include the rule definition in the request body.

By default, the rule will be added to the end of the existing list of rules in the ruleset. To define a specific position for the rule, include a position object in the request body according to the guidelines in Change the order of a rule in a ruleset.

Invoking this method creates a new version of the ruleset.

​​ Example

The following example adds a rule to ruleset <RULESET_ID> of zone <ZONE_ID>. The ruleset ID was previously obtained using the List zone rulesets operation, and corresponds to the entry point ruleset for the http_request_firewall_custom phase.

Request
curl "https://api.cloudflare.com/client/v4/zones/<ZONE_ID>/rulesets/<RULESET_ID>/rules" \
-H "Authorization: Bearer <API_TOKEN>" \
-d '{
  "action": "js_challenge",
  "expression": "(ip.geoip.country eq \"GB\" or ip.geoip.country eq \"FR\") or cf.threat_score > 0",
  "description": "challenge GB and FR or based on IP Reputation"

}'

The response includes the complete ruleset after adding the rule.

Response
{
  "result": {
    "id": "<RULESET_ID>",
    "name": "Zone Ruleset 1",
    "description": "My phase entry point ruleset at the zone level",
    "kind": "zone",
    "version": "11",
    "rules": [
      {
        "id": "<RULE_ID_1>",
        "version": "1",
        "action": "challenge",
        "expression": "not http.request.uri.path matches \"^/api/.*$\"",
        "last_updated": "2020-11-23T11:36:24.192361Z",
        "ref": "<RULE_REF_1>",
        "enabled": true
      },
      {
        "id": "<NEW_RULE_ID>",
        "version": "1",
        "action": "js_challenge",
        "expression": "(ip.geoip.country eq \"GB\" or ip.geoip.country eq \"FR\") or cf.threat_score > 0",
        "description": "challenge GB and FR or based on IP Reputation",
        "last_updated": "2021-06-22T12:35:58.144683Z",
        "ref": "<NEW_RULE_REF>",
        "enabled": true
      }
    ],
    "last_updated": "2021-06-22T12:35:58.144683Z",
    "phase": "http_request_firewall_custom"
  },
  "success": true,
  "errors": [],
  "messages": []

}