My goal for file chunked uploading is the following:

• sequential chunked uploading
• progress update whenever a chunk is uploaded
• retry when a chunk failed to upload
• chunk size is 1MB
• My enviroment is preferrably on Javascript, but can be on ASP.Net too.

I am using the AWS S3, and had configured CloudFront.

I am currently unsure which to use: the Multipart Upload API or the Chunked Upload. So what is the difference between them, and when to use them?

Here are some of the differences Ive seen so far:

Multipart Upload:

• Supports upload in parallel
• Only allows each part size to be a minimum of 5MB,

Chunked Upload:

• Authorize with Authorization Header.
• More tolerate with a minimum of only 8KB.