Upload objects using OSS SDK for Go-Object Storage Service(OSS)-阿里云帮助中心

Object Storage service (OSS) SDK for Go provides a variety of methods to upload objects. You can choose the most suitable method based on your business requirements.

Method	Description
Simple upload (OSS SDK for Go 1.0)	You can use simple upload to upload files, Blob data, or OSS buffers to OSS. The size of the file to upload cannot exceed 5 GB.
Append upload (Go SDK V1)	You can use append upload to append content to an appendable object. The size of the file to append cannot exceed 5 GB.
Resumable upload (OSS SDK for Go 1.0)	We recommend that you use resumable upload for the stable upload of large files. Resumable upload records are stored in the checkpoint file. If an object fails to be uploaded due to a network exception or program error, the upload task is resumed from the position recorded in the checkpoint file to upload the remaining data. The size of the file to upload cannot exceed 48.8 TB.
Multipart upload (Go SDK V1)	We recommend that you use multipart upload to upload objects larger than 100 MB and smaller than 48.8 TB. Multipart upload allows you to split a large object into multiple parts to upload. After these parts are uploaded, you can call the `CompleteMultipartUpload` operation to combine the parts into a complete object.
Upload callbacks (OSS SDK for Go 1.0)	You can configure upload callback parameters to start a callback process for the application server after an object is uploaded. You can perform specific operations after the file is uploaded, such as recording content in logs and subsequent processing tasks.