Curl, how to recieve data.

[holo via Digitalmars-d-learn]

I'm trying to receive data from curl request my sample code looks 
like that:

...
             auto client = HTTP(endpoint ~ "?" ~ 
canonicalQueryString);
             client.method = HTTP.Method.get;
             client.addRequestHeader("x-amz-date", xamztime);
             client.addRequestHeader("Authorization", 
authorizationHeader);
             client.onReceive = (ubyte[] data)
             {
                 recievedData = data;
                 return data.length;
             };
             client.perform();

             return new Result(recievedData);
...

             ubyte[] receivedData;

...

but im getting only last (like from "tail" command in unix 
systems) part of data which im expecting.

How to receive and save whole data which came as feedback for 
request? Or is there some other way to access it after usage of 
client.perform method?