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HEAD Bucket

Last updated: 2024-03-28 18:08:33

    Feature Description

    This API (HEAD Bucket) is used to verify whether a bucket exists and whether you have permission to access it.
    If the bucket exists and you have permission to read it, HTTP status code 200 will be returned.
    If you do not have permission to read the bucket, HTTP status code 403 will be returned.
    If the bucket does not exist, HTTP status code 404 will be returned.
    

    Request

    Sample request

    HEAD / HTTP/1.1
    Host: <BucketName-APPID>.cos.<Region>.myqcloud.com
    Date: GMT Date
    Authorization: Auth String
    Note:
    Host: <BucketName-APPID>.cos.<Region>.myqcloud.com, where <BucketName-APPID> is the bucket name followed by the APPID, such as examplebucket-1250000000 (see Bucket Overview > Basic Information and Bucket Overview > Bucket Naming Conventions), and <Region> is a COS region (see Regions and Access Endpoints).
    Authorization: Auth String (See Request Signature for details.)

    Request parameters

    This API has no request parameter.

    Request headers

    This API only uses Common Request Headers.

    Request body

    This API does not have a request body.

    Response

    Response headers

    In addition to common response headers, this API also returns the following response headers. For more information about common response headers, see Common Response Headers.
    Name
    Description
    Type
    x-cos-bucket-az-type
    AZ type of the bucket. This header is returned only for MAZ buckets. Fixed to MAZ.
    Enum
    x-cos-bucket-region
    Bucket region, such as ap-beijing, ap-hongkong, and eu-frankfurt. For the enumerated values, see Regions and Access Endpoints.
    Enum

    Response body

    The response body of this API is empty.

    Error codes

    This API returns common error responses and error codes. For more information, see Error Codes.

    Samples

    Sample 1: OAZ bucket

    Request

    HEAD / HTTP/1.1
    Host: examplebucket-1250000000.cos.ap-beijing.myqcloud.com
    Date: Tue, 28 May 2019 03:16:12 GMT
    Authorization: q-sign-algorithm=sha1&q-ak=AKID8A0fBVtYFrNm02oY1g1JQQF0c3JO****&q-sign-time=1559013372;1559020572&q-key-time=1559013372;1559020572&q-header-list=date;host&q-url-param-list=&q-signature=9085930afacf1e8a0ade2697b69353b27901****
    Connection: close

    Response

    HTTP/1.1 200 OK
    Content-Type: application/xml
    Content-Length: 0
    Connection: close
    Date: Tue, 28 May 2019 03:16:12 GMT
    Server: tencent-cos
    x-cos-bucket-region: ap-beijing
    x-cos-request-id: NWNlY2E3ZmNfZjhjMDBiMDlfMTBjOWRfZDcz****

    Sample 2: MAZ bucket

    Request

    HEAD / HTTP/1.1
    Host: examplebucket-1250000000.cos.ap-beijing.myqcloud.com
    Date: Thu, 04 Jun 2020 06:43:03 GMT
    Authorization: q-sign-algorithm=sha1&q-ak=AKID8A0fBVtYFrNm02oY1g1JQQF0c3JO****&q-sign-time=1591252983;1591260183&q-key-time=1591252983;1591260183&q-header-list=date;host&q-url-param-list=&q-signature=aa996608fe79d122ed9667d9db3caa262ed6****
    Connection: close

    Response

    HTTP/1.1 200 OK
    Content-Type: application/xml
    Content-Length: 0
    Connection: close
    Date: Thu, 04 Jun 2020 06:43:03 GMT
    Server: tencent-cos
    x-cos-bucket-az-type: MAZ
    x-cos-bucket-region: ap-beijing
    x-cos-request-id: NWVkODk3ZjdfZjI4NWQ2NF9hODhkXzRhNmQ0****
    
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