A simple download occurs when a user downloads an uploaded file (object). The object download is accomplished through an HTTP GET request.

When a user accesses a certain object, there are two possibilities:

• This object does not have anonymous read permission, but the user has a corresponding AccessKey, which can be used to sign the GET request and access the object.
• This object has anonymous read permission, so all users can directly access the object through GET requests.

For the rules of generating object URLs, refer to Accessing OSS.

For the access to an object by a user-defined domain name, refer to Accessing OSS with User-defined Domain Names.

For details about object and bucket access permission control, refer to Access Control.

To authorize a third-party user to download an object from a private bucket, refer to Authorized Third-party Download.

To use multipart download, refer to Multipart Download.

Reference

• API: Get Object
• SDK: Java SDK-Object
• Console: Get object URL

Best practices

• RAM and STS User Guide

Additional links

• File Upload Methods
• Upload Callback
• Mobile Client Development and Download Scenario Introduction
• Cloud Processing for Uploaded Images
• Secure Download Access Control
• Authorized Third-party Download for Download Security
• Copying, Deleting, and Managing Uploaded Files