new File() gives me undefined File in javascript nodejs

I am trying to open a local file and create a File object from an image file using the following code

var newFileObj = new File([buffer],fileObj.originalname,{type: fileObj.mimetype});

However this gives me File is undefined. I am using nodejs v7.0.0

Do i need to require any file before for using File type?

P.S- This is a REST API , there is no html involved.

via Gourav Saha