Xively supports HTTP compression on both incoming and outgoing requests. While optional, this is particularly useful if, for example, you have a GPRS based device that periodically uploads a batch of data because compression will typically compress the data being transmitted by 75% or more.
We use the standard HTTP method of specifying compression encoding and support the gzip compression schema.
In order to send compressed data to Xively it is necessary to send it as gzip encoding. First compress your data using gzip and then add the “Content-Encoding: gzip” header to your request. You should still specify the “Content-Type” header to match the uncompressed content, as this will be passed on beyond the decompression stage.
To receive data from Xively in gzip compressed format simply add the “Accept-Encoding: gzip” header to your request.