Generate fallthrough WAF expression template from a set of API hosts

api_gateway.expression_template.fallthrough.create() -> FallthroughCreateResponse

POST/zones/{zone_id}/api_gateway/expression-template/fallthrough

Creates an expression template fallthrough rule for API Shield. Used for configuring default behavior when no other expression templates match.

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)

Account API GatewayDomain API Gateway

ParametersExpand Collapse

zone_id: str

Identifier.

maxLength32

hosts: SequenceNotStr[str]

List of hosts to be targeted in the expression

ReturnsExpand Collapse

class FallthroughCreateResponse: …

expression: str

WAF Expression for fallthrough

title: str

Title for the expression

Generate fallthrough WAF expression template from a set of API hosts

import os
from cloudflare import Cloudflare

client = Cloudflare(
    api_token=os.environ.get("CLOUDFLARE_API_TOKEN"),  # This is the default and can be omitted
)
fallthrough = client.api_gateway.expression_template.fallthrough.create(
    zone_id="023e105f4ecef8ad9ca31a8372d0c353",
    hosts=["{zone}.domain1.tld", "domain2.tld"],
)
print(fallthrough.expression)

{
  "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": {
    "expression": "(cf.api_gateway.fallthrough_detected)",
    "title": "Fallthrough Expression for [zone.domain.tld]"
  },
  "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": {
    "expression": "(cf.api_gateway.fallthrough_detected)",
    "title": "Fallthrough Expression for [zone.domain.tld]"
  },
  "success": true
}