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DocumentationCloud Object StorageDeveloper GuideObjectCopying ObjectsMultipart Copy
Multipart Copy
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Last updated: 2024-03-25 15:28:24
Multipart Copy
Last updated: 2024-03-25 15:28:24
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Overview

To copy an object that is greater than 5 GB, you must use multipart copy. First, use the multipart upload API to create an object. Then use the Upload Part - Copy API and specify the x-cos-copy-source header to determine the source object that you want to copy. The process is outlined below:
1. Initialize an object for multipart upload.
2. Copy the data of the source object; specify the x-cos-copy-source-range header to determine how much data to copy at a time (you can specify to copy up to 5 GB at a time).
3. Complete the multipart upload.
Note:
The SDKs provided by COS can be used to easily implement a multipart copy operation.

Directions

Using REST APIs

Use REST APIs to directly initiate a multipart copy request. For more information, see the following API documentation:
Initiate Multipart Upload
Upload Part - Copy
Complete Multipart Upload
Abort Multipart Upload

Using SDKs

Use multipart copy directly through SDKs. For more information, see the SDK documentation for the corresponding programming language below:
Android SDK
C SDK
C++ SDK
.NET(C#) SDK
Go SDK
iOS SDK
Java SDK
JavaScript SDK
Node.js SDK
PHP SDK
Python SDK
Mini Program SDK
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