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    Object Storage Service:Copy objects using OSS SDK for Go 2.0

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    Object Storage Service:Copy objects using OSS SDK for Go 2.0

    Last Updated:Jun 08, 2026

    OSS SDK for Go 2.0 provides APIs to copy objects, from single-object copies to resumable multipart operations.

    Type

    API

    Description

    Copy an object (OSS SDK for Go 2.0)

    Client.CopyObject

    • Copies objects smaller than 5 GiB.

    Multipart copy (OSS SDK for Go 2.0)

    Multipart copy APIs:

    Client.InitiateMultipartUpload

    Client.UploadPartCopy

    Client.CompleteMultipartUpload

    • Copies objects larger than 5 GiB.

    • Does not support the (x-oss-metadata-directive) or (x-oss-tagging-directive) parameters. Metadata and tags are not automatically copied from the source object. Specify them explicitly in the copy request.

    Copier (OSS SDK for Go 2.0)

    Copier API:

    Copier.Copy

    • Automatically selects the appropriate copy API based on request parameters, abstracting away implementation differences between underlying APIs.