## Create a token validation rule

`token_validation.rules.create(RuleCreateParams**kwargs)  -> TokenValidationRule`

**post** `/zones/{zone_id}/token_validation/rules`

Create a token validation rule.

### Parameters

- `zone_id: str`

  Identifier.

- `action: Literal["log", "block"]`

  Action to take on requests that match operations included in `selector` and fail `expression`.

  - `"log"`

  - `"block"`

- `description: str`

  A human-readable description that gives more details than `title`.

- `enabled: bool`

  Toggle rule on or off.

- `expression: str`

  Rule expression. Requests that fail to match this expression will be subject to `action`.

  For details on expressions, see the [Cloudflare Docs](https://developers.cloudflare.com/api-shield/security/jwt-validation/).

- `selector: Selector`

  Select operations covered by this rule.

  For details on selectors, see the [Cloudflare Docs](https://developers.cloudflare.com/api-shield/security/jwt-validation/).

  - `exclude: Optional[Iterable[SelectorExclude]]`

    Ignore operations that were otherwise included by `include`.

    - `operation_ids: Optional[SequenceNotStr[str]]`

      Excluded operation IDs.

  - `include: Optional[Iterable[SelectorInclude]]`

    Select all matching operations.

    - `host: Optional[SequenceNotStr[str]]`

      Included hostnames.

- `title: str`

  A human-readable name for the rule.

### Returns

- `class TokenValidationRule: …`

  A Token Validation rule that can enforce security policies using JWT Tokens.

  - `action: Literal["log", "block"]`

    Action to take on requests that match operations included in `selector` and fail `expression`.

    - `"log"`

    - `"block"`

  - `description: str`

    A human-readable description that gives more details than `title`.

  - `enabled: bool`

    Toggle rule on or off.

  - `expression: str`

    Rule expression. Requests that fail to match this expression will be subject to `action`.

    For details on expressions, see the [Cloudflare Docs](https://developers.cloudflare.com/api-shield/security/jwt-validation/).

  - `selector: Selector`

    Select operations covered by this rule.

    For details on selectors, see the [Cloudflare Docs](https://developers.cloudflare.com/api-shield/security/jwt-validation/).

    - `exclude: Optional[List[SelectorExclude]]`

      Ignore operations that were otherwise included by `include`.

      - `operation_ids: Optional[List[str]]`

        Excluded operation IDs.

    - `include: Optional[List[SelectorInclude]]`

      Select all matching operations.

      - `host: Optional[List[str]]`

        Included hostnames.

  - `title: str`

    A human-readable name for the rule.

  - `id: Optional[str]`

    UUID.

  - `created_at: Optional[datetime]`

  - `last_updated: Optional[datetime]`

### Example

```python
import os
from cloudflare import Cloudflare

client = Cloudflare(
    api_token=os.environ.get("CLOUDFLARE_API_TOKEN"),  # This is the default and can be omitted
)
token_validation_rule = client.token_validation.rules.create(
    zone_id="023e105f4ecef8ad9ca31a8372d0c353",
    action="log",
    description="Long description for Token Validation Rule",
    enabled=True,
    expression="is_jwt_valid(\"52973293-cb04-4a97-8f55-e7d2ad1107dd\") or is_jwt_valid(\"46eab8d1-6376-45e3-968f-2c649d77d423\")",
    selector={},
    title="Example Token Validation Rule",
)
print(token_validation_rule.id)
```

#### Response

```json
{
  "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": {
    "action": "log",
    "description": "Long description for Token Validation Rule",
    "enabled": true,
    "expression": "is_jwt_valid(\"52973293-cb04-4a97-8f55-e7d2ad1107dd\") or is_jwt_valid(\"46eab8d1-6376-45e3-968f-2c649d77d423\")",
    "selector": {
      "exclude": [
        {
          "operation_ids": [
            "f9c5615e-fe15-48ce-bec6-cfc1946f1bec",
            "56828eae-035a-4396-ba07-51c66d680a04"
          ]
        }
      ],
      "include": [
        {
          "host": [
            "v1.example.com",
            "v2.example.com"
          ]
        }
      ]
    },
    "title": "Example Token Validation Rule",
    "id": "f174e90a-fafe-4643-bbbc-4a0ed4fc8415",
    "created_at": "2014-01-01T05:20:00.12345Z",
    "last_updated": "2014-01-01T05:20:00.12345Z"
  },
  "success": true
}
```