Uploading Objects

Last updated: 2020-04-17 15:57:38


    You can upload objects to a bucket on the File List page in the COS Console. For more information on objects, see Object Overview.


    Before uploading an object, please make sure that you have created a bucket. If no bucket has been created, see Creating a Bucket.


    1. Entering the file list

    Log in to the COS Console. Click Bucket List, select the bucket to which you want to upload the objects, and you will be taken to the bucket's File List page. Click Upload Files and you will see the Upload Files window as shown below.

    2. Selecting the object(s) to be uploaded

    On the Upload Files page, click Select Files or Select Folders to upload a single or multiple local files/folders. After selecting the objects to be uploaded, click Upload, or click Next to set the object attributes before the upload (see Step 3).

    3. Setting object attributes (optional)

    Set the storage class, access permissions, server-side encryption and metadata (optional) for the files to be uploaded, and then click Upload. The configuration items are described as follows:

    • Storage Class
      You can set different storage classes for different objects in different scenarios. The default storage class is Standard Storage. For more information on storage classes, see Storage Class
    • Access Permissions
      You can set different access permissions for different objects as needed. The default is "Inherit Permissions", i.e. inheriting permissions from the bucket. For more information on access permissions, see Basic Concepts of Access Control.
    • Server-side Encryption
      You can configure server-side encryption for the objects you want to upload. Tencent Cloud COS will apply data encryption protection to the uploaded objects. The objects will be automatically encrypted before they are written, and automatically decrypted when you access them. Tencent Cloud COS supports AES-256 encryption with the master key. For more information, see Server-side Encryption Overview.
    • Metadata
      The object metadata, or HTTP Header, is a string sent by the server before it sends HTML data to the browser with the HTTP protocol. By modifying the HTTP Header, you can change how the page responds or communicate configuration information, such as modifying the cache time. Modifying an object's HTTP Header does not modify the object itself. For more information, see Custom Object Headers.
      After an object is uploaded successfully, the system automatically refreshes the list to get the latest object information as shown below.

    Some browsers do not support uploading multiple files. It is recommended to use mainstream browsers such as IE10 or above, Firefox, or Chrome.

    4. Verifying the completion of the upload

    After clicking Upload, you can check the upload progress in Task Completed in the top right of the page. After the upload is complete, you can see the uploaded object in the File List page of the bucket.

    The task progress in the figure indicates the number of tasks created by the current operation. For example, if you upload 10 files in a single operation and all are successfully uploaded, the task progress will display "1 succeeded, 0 failed, and 0 suspended".

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