Notification when all requests are completed.

[Piero512]

Hey, wanted to write up feedback and I had a little problem with the library implementation. On my project, the library is used with a wrapper, that provides different storage backends, and in one of these backends it has to POST data to an API. I was wondering if there's a way to wait until all requests have completed but without closing the rest-client. A workaround I think for it would be to handle the rest client object and have it close, then re-initialized to be ready for the next POST request on the wrapper, but it's ugly.

This is a great library, it really makes HTTP on C++ easy, and I haven't had any other issues so far.

[jgaa]

Interesting suggestion. I'll see what I can do :)