Not sure this is the right place but, I am not able to get the HttpClient for Arduino working on Spark. Since Spark is Arduino compatible and since HttpClient is pretty basic functionality on the Arduino with WiFi, this may be easy to resolve. Can someone help get the full HttpClient support on Spark?
Have you checked out the Spark port of HTTPClient available on WebIDE or here?
To use the demo on WebIDE you’d need to
//change this line #include "HttpClient.h" // to #include "HttpClient/HttpClient.h"