Feature Request: Multi-thread download of a single file using http range

[Yesterday17]

Feature request

Multi-thread download of a single file using http range.

Current Behavior

One http request is used to download the whole file.

Expected Behavior

Multiple requests can be used to speed up the download process.

Possible Solution

After getting the content length of a file, we can split it into multiple chunks. Then, we can spawn n downloaders to download those chunks. Finally, we can merge them into a whole file.

For resuming download, we need a separated file to track the whole download process like what aria2 does.

[Yesterday17]

A simple workaround is to add a range property to Download structure. Then users can HEAD the file themselves and split the whole file into multiple ranges. But it looks hacky 😄