---
title: Create Content Scanning custom expressions for a zone.
---

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[API Reference](https://developers.cloudflare.com/api/python)

[Content Scanning](https://developers.cloudflare.com/api/python/resources/content_scanning)

[Payloads](https://developers.cloudflare.com/api/python/resources/content_scanning/subresources/payloads)

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# Create Content Scanning custom expressions for a zone.

content\_scanning.payloads.create(PayloadCreateParams\*\*kwargs) -> SyncSinglePage\[[PayloadCreateResponse](<https://developers.cloudflare.com/api/python/resources/content_scanning#(resource)%20content_scanning.payloads%20%3E%20(model)%20payload_create_response%20%3E%20(schema)>)]

POST/zones/{zone\_id}/content-upload-scan/payloads

Create one or more Content Scanning custom expressions, appending them to the existing list of the zone, and return the updated list. Each expression reaches content objects the scanner cannot find automatically, for example `lookup_json_string(http.request.body.raw, "file")`.

##### Security

<details>

<summary>API Token</summary>



The preferred authorization scheme for interacting with the Cloudflare API. <a href="https://developers.cloudflare.com/fundamentals/api/get-started/create-token/">Create a token</a>.

**Example:**<code>Authorization: Bearer Sn3lZJTBX6kkg7OdcBUAxOO963GEIyGQqnFTOFYY</code>

</details>

<details>

<summary>API Email + API Key</summary>



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

**Example:**<code>X-Auth-Email: user@example.com</code>

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

**Example:**<code>X-Auth-Key: 144c9defac04969c7bfad8efaa8ea194</code>

</details>

##### Accepted Permissions (at least one required)

`Zone WAF Write``Account WAF Write`

##### ParametersExpand Collapse

zone\_id: str

Defines an identifier.

maxLength32

[Link to this property](<#(resource)%20content_scanning.payloads%20%3E%20(method)%20create%20%3E%20(params)%20default%20%3E%20(param)%20zone_id%20%3E%20(schema)>)

<details>

<summary>

body: Iterable\[Body]

</summary>

payload: str

Defines the custom content extraction expression used to reach content objects in the request.

<a href="#(resource)%20content_scanning.payloads%20%3E%20(method)%20create%20%3E%20(params)%20default%20%3E%20(param)%20body%20%3E%20(schema)%20%3E%20(items)%20%3E%20(property)%20payload">Link to this property</a>

</details>

[Link to this property](<#(resource)%20content_scanning.payloads%20%3E%20(method)%20create%20%3E%20(params)%20default%20%3E%20(param)%20body%20%3E%20(schema)>)

##### ReturnsExpand Collapse

<details>

<summary>

class PayloadCreateResponse: …

Defines a Content Scanning custom expression.

</summary>

id: Optional\[str]

Defines the unique ID for this Content Scanning custom expression.

maxLength32

<a href="#(resource)%20content_scanning.payloads%20%3E%20(model)%20payload_create_response%20%3E%20(schema)%20%3E%20(property)%20id">Link to this property</a>

payload: Optional\[str]

Defines the custom content extraction expression used to reach content objects in the request.

<a href="#(resource)%20content_scanning.payloads%20%3E%20(model)%20payload_create_response%20%3E%20(schema)%20%3E%20(property)%20payload">Link to this property</a>

</details>

[Link to this property](<#(resource)%20content_scanning.payloads%20%3E%20(model)%20payload_create_response%20%3E%20(schema)>)

### Create Content Scanning custom expressions for a zone.

Python

HTTPTypeScriptPythonGoTerraform

```
import os
from cloudflare import Cloudflare

client = Cloudflare(
    api_token=os.environ.get("CLOUDFLARE_API_TOKEN"),  # This is the default and can be omitted
)
page = client.content_scanning.payloads.create(
    zone_id="023e105f4ecef8ad9ca31a8372d0c353",
    body=[{
        "payload": "lookup_json_string(http.request.body.raw, \"file\")"
    }],
)
page = page.result[0]
print(page.id)
```

200 example

```
{
  "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": "a350a054caa840c9becd89c3b4f0195b",
      "payload": "lookup_json_string(http.request.body.raw, \"file\")"
    }
  ],
  "success": true
}
```

##### Returns Examples

200 example

```
{
  "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": "a350a054caa840c9becd89c3b4f0195b",
      "payload": "lookup_json_string(http.request.body.raw, \"file\")"
    }
  ],
  "success": true
}
```