golang parallel download with accept ranges

About

This is an example to show you how to download a file in efficient way.

If a URL supports http header - Accept-Ranges, it will be divided into several parts and download it concurrently.

Run

Download a file with 5 connections (default: 5)

./golang-parallel-download-with-accept-ranges

File name with timestamp

./golang-parallel-download-with-accept-ranges -t

Specify the connection count

./golang-parallel-download-with-accept-ranges -c=7

Dependencies

pb - show multiple progress bar

go get github.com/cheggaaa/pb

Compile command

mac

GOOS=darwin GOARCH=amd64 go build -o download.command

windows

GOOS=windows GOARCH=amd64 go build -o download.exe

FIXME

• File's body download on windows is different from one on mac. (e.g. mp4)

TODO

• Support request header