How to upload a file by using Go SDK V2 - Object Storage Service

Object Storage Service (OSS) SDK for Go V2 provides various upload operations. You can select suitable operations to upload an object based on your business scenarios.

Type	Interface Name	Description
Simple upload	Client.PutObject	Perform simple upload to upload an object that is up to 5 GiB in size. Support CRC-64 (enabled by default). Support for progress bar charts. Support the request body whose type is io.Reader. If the type of the request body is io.Seeker, when the upload task fails, the object is reuploaded.
Simple upload	Client.PutObjectFromFile	Provide the same capability as Client.PutObject. Obtain the request body from the path of the local file.
Append upload	Client.AppendObject	Perform append upload to upload an object that is up to 5 GiB in size. Support CRC-64 (enabled by default). Support for progress bar charts Support the request body whose type is io.Reader. If the type of the request body is io.Seeker, when the upload task fails, the object is reuploaded. The operation is idempotent and object reupload may fail.
Append upload	AppendOnlyFile operations AppendOnlyFile.Write AppendOnlyFile.WriteFrom	Provide the same capability as Client.AppendObject. Optimize fault tolerance after the object reupload fails.
Multipart upload	Multipart upload operations Client.InitiateMultipartUpload Client.UploadPart Client.CompleteMultipartUpload	Perform multiple part upload to upload an object that is up to 48.8 TiB in size and set the size of a part to up to 5 GiB. UploadPart supports CRC-64 (enabled by default). UploadPart lets you view the progress of an upload task in the progress bar. Support the request body whose type is io.Reader. If the type of the request body is io.Seeker, when the upload task fails, the object is reuploaded.
Form upload	/	Generate information such as a signature and an upload policy, and use the HTTP Post method to upload an object to OSS.
Uploading an object using a signed URL (Go SDK V2)	Client.Presign	Generate a signed URL that allows HTTP PUT requests and has a validity period to authorize users to upload an object.
Uploader	Uploader.UploadFrom	Encapsulate the simple upload and multipart upload operations and allow you to upload an object that is up to 48.8 TiB in size. Support CRC-64 (enabled by default). Support for progress bars Support the request body whose type is io.Reader. If the io.Reader, io.Seeker, and io.ReaderAt types of the request body are supported, data do not need to be cached in memory. Otherwise, data must be cached in memory and then be uploaded.
Uploader	Uploader.UploadFile	Provide the same capability as Uploader.UploadFrom. Obtain the request body from the path of the local file. Support resumable upload.