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Object Access URL

Terakhir diperbarui:2024-02-04 17:20:25

    Overview

    This document provides an overview of the API and sample code for getting an object access URL.

    Getting an Object Access URL

    Feature description

    This API is used to query the URL to access an object. This API does not verify whether the object exists or not.
    Note:
    To make the generated object URL a preview URL instead of a download URL, concatenate the response-content-disposition=inline parameter to the end of the obtained URL.
    To make the generated object URL a download URL instead of a preview URL, concatenate the response-content-disposition=attachment parameter to the end of the obtained URL.
    To rename a file during download, concatenate the filename=(custom file name) parameter to the end of the obtained URL.
    If you use a temporary key to generate a pre-signed URL, make sure that the "name/cos:GetObject" permission has been added to the action for applying for a temporary key.

    Sample code

    Getting the download URL:
    cos.getObjectUrl(
    {
    Bucket: 'examplebucket-1250000000', /* Your bucket name. Required. */
    Region: 'COS_REGION', /* Bucket region (required), such as ap-beijing */
    Key: 'Profile photo.jpg', /* Object key stored in the bucket (required), such as `1.jpg` and `a/b/test.txt`. */
    Sign: true, /* Get a signed object URL. */
    },
    function (err, data) {
    if (err) return console.log(err);
    /* The URL is the object access URL. */
    var url = data.Url;
    /* Copy the value of `downloadUrl` to the browser and open it, and then download is automatically triggered. */
    var downloadUrl =
    data.Url +
    (data.Url.indexOf('?') > -1 ? '&' : '?') +
    'response-content-disposition=attachment'; // Add the parameter for a forced download
    }
    );

    Parameter description

    Parameter
    Description
    Type
    Required
    Bucket
    Bucket name in the format of BucketName-APPID. The bucket name entered here must be in this format.
    String
    Yes
    Region
    Bucket region. For the enumerated values, see Regions and Access Endpoints.
    String
    Yes
    Key
    Object key (object name), which is the unique identifier of an object in a bucket. For more information, see Object Overview.
    String
    Yes
    Sign
    Whether to return a signed URL. Default value: true. If the object is configured with the private read permission, you still do not have the access permission after you obtain the unsigned URL.
    Boolean
    No
    Protocol
    Valid values: http: (default value), https:.
    String
    No
    Domain
    Bucket access domain name. Default value: {BucketName-APPID}.cos.{Region}.myqcloud.com.
    String
    No
    Method
    HTTP request method, such as GET, POST, DELETE, or HEAD. Default value: GET.
    String
    No
    Query
    Request parameters to be included in the signature in the format of {key: 'val'}
    Object
    No
    Headers
    Request headers to be included in the signature in the format of {key: 'val'}
    Object
    No
    Expires
    Signature expiration time in seconds. Default value: 900.
    Number
    No

    Callback function description

    function(err, data) { ... }
    Parameter
    Description
    Type
    err
    The object returned when an error (network error or service error) occurs. If the request is successful, this parameter is empty. For more information, see Error Codes.
    Object
    data
    The object returned when the request is successful. If an error occurs with the request, this parameter is empty.
    Object
    - Url
    Calculated URL
    String
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