In addition to PutObject, OSS also provides the multipart upload mode.

You can upload files in the multipart upload mode in the following scenarios (but not limited to the following):

  • Resumable upload must be supported.
  • The files to be uploaded are larger than 100 MB.
  • The network conditions are poor, and the connection with the OSS server is frequently disconnected.
  • Before a file is uploaded, the size of the file cannot be determined.