get-bucket-cors¶

Description¶

Returns the cors configuration information set for the bucket.

To use this operation, you must have permission to perform the s3:GetBucketCORS action. By default, the bucket owner has this permission and can grant it to others.

For more information about cors, see Enabling Cross-Origin Resource Sharing .

The following operations are related to GetBucketCors :

Synopsis¶

  get-bucket-cors
--bucket <value>
[--expected-bucket-owner <value>]
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]

Options¶

--bucket (string)

The bucket name for which to get the cors configuration.

--expected-bucket-owner (string)

The account ID of the expected bucket owner. If the bucket is owned by a different account, the request will fail with an HTTP 403 (Access Denied) error.

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See ‘aws help’ for descriptions of global parameters.

Examples¶

The following command retrieves the Cross-Origin Resource Sharing configuration for a bucket named my-bucket:

aws s3api get-bucket-cors --bucket my-bucket

Output:

{
    "CORSRules": [
        {
            "AllowedHeaders": [
                "*"
            ],
            "ExposeHeaders": [
                "x-amz-server-side-encryption"
            ],
            "AllowedMethods": [
                "PUT",
                "POST",
                "DELETE"
            ],
            "MaxAgeSeconds": 3000,
            "AllowedOrigins": [
                "http://www.example.com"
            ]
        },
        {
            "AllowedHeaders": [
                "Authorization"
            ],
            "MaxAgeSeconds": 3000,
            "AllowedMethods": [
                "GET"
            ],
            "AllowedOrigins": [
                "*"
            ]
        }
    ]
}

Output¶

CORSRules -> (list)

A set of origins and methods (cross-origin access that you want to allow). You can add up to 100 rules to the configuration.

(structure)

Specifies a cross-origin access rule for an Amazon S3 bucket.

ID -> (string)

Unique identifier for the rule. The value cannot be longer than 255 characters.

AllowedHeaders -> (list)

Headers that are specified in the Access-Control-Request-Headers header. These headers are allowed in a preflight OPTIONS request. In response to any preflight OPTIONS request, Amazon S3 returns any requested headers that are allowed.

(string)

AllowedMethods -> (list)

An HTTP method that you allow the origin to execute. Valid values are GET , PUT , HEAD , POST , and DELETE .

(string)

AllowedOrigins -> (list)

One or more origins you want customers to be able to access the bucket from.

(string)

ExposeHeaders -> (list)

One or more headers in the response that you want customers to be able to access from their applications (for example, from a JavaScript XMLHttpRequest object).

(string)

MaxAgeSeconds -> (integer)

The time in seconds that your browser is to cache the preflight response for the specified resource.

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