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API Reference
Firewall
UA Rules

Create a User Agent Blocking rule

firewall.ua_rules.create(UARuleCreateParams**kwargs) -> UARuleCreateResponse
POST/zones/{zone_id}/firewall/ua_rules

Creates a new User Agent Blocking rule in a zone.

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
Accepted Permissions (at least one required)
Firewall Services Write
ParametersExpand Collapse
zone_id: str

Defines an identifier.

maxLength32
configuration: Configuration
target: Optional[Literal["ua"]]

The configuration target. You must set the target to ua when specifying a user agent in the rule.

value: Optional[str]

the user agent to exactly match

mode: Literal["block", "challenge", "whitelist", 2 more]

The action to apply to a matched request.

One of the following:
"block"
"challenge"
"whitelist"
"js_challenge"
"managed_challenge"
description: Optional[str]

An informative summary of the rule. This value is sanitized and any tags will be removed.

maxLength1024
paused: Optional[bool]

When true, indicates that the rule is currently paused.

ReturnsExpand Collapse
class UARuleCreateResponse: …
id: Optional[str]

The unique identifier of the User Agent Blocking rule.

maxLength32
configuration: Optional[Configuration]

The configuration object for the current rule.

target: Optional[str]

The configuration target for this rule. You must set the target to ua for User Agent Blocking rules.

value: Optional[str]

The exact user agent string to match. This value will be compared to the received User-Agent HTTP header value.

description: Optional[str]

An informative summary of the rule.

maxLength1024
mode: Optional[Literal["block", "challenge", "js_challenge", "managed_challenge"]]

The action to apply to a matched request.

maxLength12
One of the following:
"block"
"challenge"
"js_challenge"
"managed_challenge"
paused: Optional[bool]

When true, indicates that the rule is currently paused.

Create a User Agent Blocking rule

import os
from cloudflare import Cloudflare

client = Cloudflare(
    api_token=os.environ.get("CLOUDFLARE_API_TOKEN"),  # This is the default and can be omitted
)
ua_rule = client.firewall.ua_rules.create(
    zone_id="023e105f4ecef8ad9ca31a8372d0c353",
    configuration={},
    mode="challenge",
)
print(ua_rule.id)
{
  "errors": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "messages": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "result": {
    "id": "372e67954025e0ba6aaa6d586b9e0b59",
    "configuration": {
      "target": "ua",
      "value": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5) AppleWebKit/603.2.4 (KHTML, like Gecko) Version/10.1.1 Safari/603.2.4"
    },
    "description": "Prevent access from abusive clients identified by this User Agent to mitigate a DDoS attack",
    "mode": "js_challenge",
    "paused": false
  },
  "success": 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"
      }
    }
  ],
  "result": {
    "id": "372e67954025e0ba6aaa6d586b9e0b59",
    "configuration": {
      "target": "ua",
      "value": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5) AppleWebKit/603.2.4 (KHTML, like Gecko) Version/10.1.1 Safari/603.2.4"
    },
    "description": "Prevent access from abusive clients identified by this User Agent to mitigate a DDoS attack",
    "mode": "js_challenge",
    "paused": false
  },
  "success": true
}