HTTP chunked encoding using C++ and libcurl

HTTP chunked encoding is the way to transfer large amounts of data via HTTP. It is pretty easy to use with libcurl, if you have all the data in advance. In case you don't have all the data available when uploading, things get a bit tricky. This latter scenario is what this post will be focused on.

Uploading files with unknown size using the Google Drive API

The Drive API documentation is not very straight forward when it comes to uploading files when you don't know the size of the file. In this post I'll explain a way to do a chunked file upload when the file length is unknown.