Update Zone Precursor Config

precursor.update() -> PrecursorConfig

PUT/zones/{zone_id}/precursor

Updates the Precursor configuration for a zone.

default_mode sets the zone-level enforcement mode. enforcement_rules is the ordered list of rules that override enforcement for matching requests.

This is a partial update: only the fields present in the request body are changed.

Sending an empty array ([]) clears all enforcement rules.
At least one of default_mode or enforcement_rules must be present; an empty body ({}) is rejected with 400.
Rule id is read-only (assigned by Cloudflare) and ignored on input.
Rule mode must be min-friction or max-security (off is not a valid rule mode; use default_mode to disable enforcement).

Security

API Token

The preferred authorization scheme for interacting with the Cloudflare API. Create a token.

Example:Authorization: Bearer Sn3lZJTBX6kkg7OdcBUAxOO963GEIyGQqnFTOFYY

API Email + API Key

The previous authorization scheme for interacting with the Cloudflare API, used in conjunction with a Global API key.

Example:X-Auth-Email: user@example.com

The previous authorization scheme for interacting with the Cloudflare API. When possible, use API tokens instead of Global API keys.

Example:X-Auth-Key: 144c9defac04969c7bfad8efaa8ea194

ParametersExpand Collapse

zone_id: str

Identifier.

maxLength32

default_mode: Optional[Literal["off", "min-friction", "max-security"]]

The zone-level Precursor enforcement mode applied to requests that do not match a more specific enforcement rule.

One of the following:

"off"

"min-friction"

"max-security"

enforcement_rules: Optional[Iterable[EnforcementRuleParam]]

The ordered list of enforcement rules for the zone.

expression: str

The filter expression that determines which requests the rule matches.

mode: Literal["min-friction", "max-security"]

The override mode Precursor applies to requests matching an enforcement rule. Unlike default_mode, this cannot be off.

One of the following:

"min-friction"

"max-security"

id: Optional[str]

The read-only identifier that Cloudflare assigns to the rule.

description: Optional[str]

An informative description of the rule.

enabled: Optional[bool]

Whether the rule is active.

ReturnsExpand Collapse

class PrecursorConfig: …

default_mode: Optional[Literal["off", "min-friction", "max-security"]]

The zone-level Precursor enforcement mode applied to requests that do not match a more specific enforcement rule.

One of the following:

"off"

"min-friction"

"max-security"

enforcement_rules: Optional[List[EnforcementRule]]

The ordered list of enforcement rules for the zone.

expression: str

The filter expression that determines which requests the rule matches.

mode: Literal["min-friction", "max-security"]

The override mode Precursor applies to requests matching an enforcement rule. Unlike default_mode, this cannot be off.

One of the following:

"min-friction"

"max-security"

id: Optional[str]

The read-only identifier that Cloudflare assigns to the rule.

description: Optional[str]

An informative description of the rule.

enabled: Optional[bool]

Whether the rule is active.

Update Zone Precursor Config

import os
from cloudflare import Cloudflare

client = Cloudflare(
    api_token=os.environ.get("CLOUDFLARE_API_TOKEN"),  # This is the default and can be omitted
)
precursor_config = client.precursor.update(
    zone_id="023e105f4ecef8ad9ca31a8372d0c353",
    default_mode="min-friction",
)
print(precursor_config.default_mode)

{
  "errors": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "messages": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "success": true,
  "result": {
    "default_mode": "min-friction",
    "enforcement_rules": [
      {
        "expression": "http.request.uri.path eq \"/shop\"",
        "mode": "max-security",
        "id": "3a03d665bac043e3a684e0d385a4b1e2",
        "description": "Enforce max-security on the shop page",
        "enabled": true
      }
    ]
  }
}

Returns Examples

{
  "errors": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "messages": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "success": true,
  "result": {
    "default_mode": "min-friction",
    "enforcement_rules": [
      {
        "expression": "http.request.uri.path eq \"/shop\"",
        "mode": "max-security",
        "id": "3a03d665bac043e3a684e0d385a4b1e2",
        "description": "Enforce max-security on the shop page",
        "enabled": true
      }
    ]
  }
}