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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.

The response will include the complete ruleset after adding the rule.

Terminal window
curl https://api.cloudflare.com/client/v4/zones/{zone_id}/rulesets/{ruleset_id}/rules \
--header "Authorization: Bearer <API_TOKEN>" \
--header "Content-Type: application/json" \
--data '{
"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"
}'
{
"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": []
}

Define the rule position in the ruleset

To define the position of the new rule in the ruleset, include a position object in the request, containing one of the following:

  • "before": "<RULE_ID>" — Places the rule before rule <RULE_ID>. Use this argument with an empty rule ID value ("") to set the rule as the first rule in the ruleset.

  • "after": "<RULE_ID>" — Places the rule after rule <RULE_ID>. Use this argument with an empty rule ID value ("") to set the rule as the last rule in the ruleset.

  • "index": <POSITION_NUMBER> — Places the rule in the exact position specified by the integer number <POSITION_NUMBER>. Position numbers start with 1. Existing rules in the ruleset from the specified position number onward are shifted one position (no rule is overwritten). For example, when you place a rule in position n using index, existing rules with index n, n+1, n+2, and so on, are shifted one position — their new position will be n+1, n+2, n+3, and so forth. If the index is out of range, the method returns a 400 HTTP status code.

For examples of using a position object, refer to Update a rule in a ruleset.