backup API in 1.20

[roger peppe]

On 29 July 2014 16:50, Eric Snow <eric.snow at canonical.com> wrote:
> The API server side of backup made it into 1.20 (the client-side and
> CLI did not).  However, the API is exposed via HTTP POST rather than
> through websockets RPC.

An HTTP POST request seems about right for a call that
streams a significant amount of data. Is there any particular
reason this has to change?