Download multiple files from sharepoint 365 using REST web service (using c# code in code stage )

[polugopi]

Hi All,
I need to perform below task:
1.I need to enter credentials into Microsoft share point 365.
2. it contains 4 folders.
3. now I need to open 1 st folder and download all files which to local directory.
repeat the 3 rd step for remaining folders.

I need to perform all the steps using code stage that to REST web service ( using C# code)

and also I need to utilize global code which is in initialize stage.( like download files)


can any one please share the code.


Thanks
P.Gopi