Put Bucket CORS Policy

r2.buckets.cors.update(, ) -> object

PUT/accounts/{account_id}/r2/buckets/{bucket_name}/cors

Set the CORS policy for a bucket.

Security

API Token

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

Example:Authorization: Bearer Sn3lZJTBX6kkg7OdcBUAxOO963GEIyGQqnFTOFYY

ParametersExpand Collapse

account_id: str

Account ID.

maxLength32

bucket_name: str

Name of the bucket.

maxLength64

minLength3

rules: Optional[Iterable[Rule]]

allowed: RuleAllowed

Object specifying allowed origins, methods and headers for this CORS rule.

methods: List[Literal["GET", "PUT", "POST", 2 more]]

Specifies the value for the Access-Control-Allow-Methods header R2 sets when requesting objects in a bucket from a browser.

One of the following:

"GET"

"PUT"

"POST"

"DELETE"

"HEAD"

origins: SequenceNotStr[str]

Specifies the value for the Access-Control-Allow-Origin header R2 sets when requesting objects in a bucket from a browser.

headers: Optional[SequenceNotStr[str]]

Specifies the value for the Access-Control-Allow-Headers header R2 sets when requesting objects in this bucket from a browser. Cross-origin requests that include custom headers (e.g. x-user-id) should specify these headers as AllowedHeaders.

id: Optional[str]

Identifier for this rule.

expose_headers: Optional[SequenceNotStr[str]]

Specifies the headers that can be exposed back, and accessed by, the JavaScript making the cross-origin request. If you need to access headers beyond the safelisted response headers, such as Content-Encoding or cf-cache-status, you must specify it here.

max_age_seconds: Optional[float]

Specifies the amount of time (in seconds) browsers are allowed to cache CORS preflight responses. Browsers may limit this to 2 hours or less, even if the maximum value (86400) is specified.

jurisdiction: Optional[Literal["default", "eu", "fedramp"]]

Jurisdiction where objects in this bucket are guaranteed to be stored.

One of the following:

"default"

"eu"

"fedramp"

ReturnsExpand Collapse

object

Put Bucket CORS Policy

import os
from cloudflare import Cloudflare

client = Cloudflare(
    api_token=os.environ.get("CLOUDFLARE_API_TOKEN"),  # This is the default and can be omitted
)
cors = client.r2.buckets.cors.update(
    bucket_name="example-bucket",
    account_id="023e105f4ecef8ad9ca31a8372d0c353",
)
print(cors)

{
  "errors": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "messages": [
    "string"
  ],
  "result": {},
  "success": true
}

Returns Examples

{
  "errors": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "messages": [
    "string"
  ],
  "result": {},
  "success": true
}