Configure payload logging for a managed ruleset via API

Use the Rulesets API to configure payload logging for a managed ruleset via API.

​​ Configure and enable payload logging

1. Use the Get a zone entry point ruleset Open API docs link operation to obtain the following IDs:

   • The ID of the entry point ruleset of the http_request_firewall_managed phase.
   • The ID of the rule deploying the WAF managed ruleset (an execute rule) for which you want to configure payload logging.

2. Use the Update a zone ruleset rule Open API docs link operation to update the rule you identified in the previous step.

   Include a matched_data object in the rule’s action_parameters object to configure payload logging. The matched_data object has the following structure:

   "action_parameters": {
     // ...
     "matched_data": {
       "public_key": "<PUBLIC_KEY_VALUE>"
     }
   }
   

   Replace <PUBLIC_KEY_VALUE> with the public key you want to use for payload logging. You can generate a public key in the command line or in the Cloudflare dashboard.

​​ Example

This example configures payload logging for the Cloudflare Managed Ruleset, which is already deployed for a zone with ID {zone_id}.

1. Invoke the Get a zone entry point ruleset Open API docs link operation (a GET request) to obtain the rules currently configured in the entry point ruleset of the http_request_firewall_managed phase.

   Request
   curl https://api.cloudflare.com/client/v4/zones/{zone_id}/rulesets/phases/http_request_firewall_managed/entrypoint \
   --header "Authorization: Bearer <API_TOKEN>"
   

   Example response
   {
     "result": {
       "id": "060013b1eeb14c93b0dcd896537e0d2c", // entry point ruleset ID
       "name": "default",
       "description": "",
       "source": "firewall_managed",
       "kind": "zone",
       "version": "3",
       "rules": [
         // (...)
         {
           "id": "1bdb49371c1f46958fc8b985efcb79e7", // `execute` rule ID
           "version": "1",
           "action": "execute",
           "expression": "true",
           "last_updated": "2024-01-20T14:21:28.643979Z",
           "ref": "1bdb49371c1f46958fc8b985efcb79e7",
           "enabled": true,
           "action_parameters": {
             "id": "efb7b8c949ac4650a09736fc376e9aee", // "Cloudflare Managed Ruleset" ID
             "version": "latest"
           }
         },
         // (...)
       ],
       "last_updated": "2024-01-20T14:29:00.190643Z",
       "phase": "http_request_firewall_managed"
     },
     "success": true,
     "errors": [],
     "messages": []
   }
   

2. Save the following IDs for the next step:

   • The ID of the entry point ruleset:
     060013b1eeb14c93b0dcd896537e0d2c
   • The ID of the execute rule deploying the Cloudflare Managed Ruleset:
     1bdb49371c1f46958fc8b985efcb79e7.

   To find the correct rule in the rules array, search for an execute rule containing the ID of the Cloudflare Managed Ruleset (efb7b8c949ac4650a09736fc376e9aee) in action_parameters > id.

3. Invoke the Update a zone ruleset rule Open API docs link operation (a PATCH request) to update the configuration of the rule you identified. The rule will now include the payload logging configuration (matched_data object).

   Request
   curl --request PATCH \
   "https://api.cloudflare.com/client/v4/zones/{zone_id}/rulesets/060013b1eeb14c93b0dcd896537e0d2c/rules/1bdb49371c1f46958fc8b985efcb79e7" \
   --header "Authorization: Bearer <API_TOKEN>" \
   --header "Content-Type: application/json" \
   --data '{
     "action": "execute",
     "action_parameters": {
       "id": "efb7b8c949ac4650a09736fc376e9aee",
       "matched_data": {
         "public_key": "Ycig/Zr/pZmklmFUN99nr+taURlYItL91g+NcHGYpB8="
       }
     },
     "expression": "true"
   }'
   

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

For more information on deploying managed rulesets via API, refer to Deploy a managed ruleset in the Ruleset Engine documentation.

​​ Disable payload logging

To disable payload logging for a managed ruleset:

1. Use the Update a zone ruleset rule Open API docs link operation (a PATCH request) to update the rule deploying the managed ruleset (an execute rule).

2. Modify the rule definition so that there is no matched_data object in action_parameters.

For example, the following PATCH request updates rule with ID {rule_id} deploying the Cloudflare Managed Ruleset so that payload logging is disabled:

curl --request PATCH \
"https://api.cloudflare.com/client/v4/zones/{zone_id}/rulesets/{entrypoint_ruleset_id}/rules/{rule_id}" \
--header "Authorization: Bearer <API_TOKEN>" \
--header "Content-Type: application/json" \
--data '{
  "action": "execute",
  "action_parameters": {
    "id": "efb7b8c949ac4650a09736fc376e9aee"
  },
  "expression": "true"
}'

For details on obtaining the entry point ruleset ID and the ID of the rule to update, refer to Configure and enable payload logging.