Objects are the basic unit for data operations in Object Storage Service (OSS). OSS SDK for C provides a variety of methods to upload objects.
Simple upload: supports the upload of an object that is up to 5 GB in size. Simple upload allows you to perform streaming upload and object upload.
Append upload: supports the upload of an object that is up to 5 GB in size.
Resumable upload: supports the upload of an object that is up to 48.8 TB in size. This method is suitable for uploading large objects. Concurrent upload is supported. You can define the size of each part.
Multipart upload: supports the upload of an object that is up to 48.8 TB in size. This method is suitable for uploading large objects.
During the upload, you can set object metadata and view the upload progress. For more information, see Manage object metadata and Progress bar. After the upload is complete, you can receive callbacks. For more information, see Upload callbacks.