I will be waiting for this to be implemented in Android Couchbase Lite.

Thanks.

On Thursday, 16 January 2014 19:51:17 UTC, Jens Alfke wrote:
>
> I've gotten GZip HTTP compression working for the Sync Gateway and the iOS 
> Couchbase Lite. This should save quite a bit of bandwidth during 
> replications, since JSON tends to compress to about half its size.
>
> Here's what gets compressed:
>
>    1. JSON response bodies from the Gateway (if the client sends an 
>    "Allow-Encoding: gzip" header, which pretty much everything does)
>    2. JSON parts of MIME multipart responses from the Gateway (i.e. the 
>    document bodies in a GET-with-attachments or a _bulk_get)
>    3. JSON request bodies sent by CBL/iOS, including _bulk_docs and 
>    _revs_diff
>    4. JSON parts of MIME multipart document uploads from CBL/iOS
>
>
> This should all Just Work, with no apparent change other than lower data 
> usage, as long as you've got the latest master-branch bits from both repos.
>
> Only #1 above is a well-supported standard feature. The others are still 
> valid HTTP but not commonly supported on the receiving side, so they aren't 
> enabled by default. To enable #2, CBL/iOS sends a special header 
> "X-Accept-Part-Encoding: gzip" with the request, which the gateway checks 
> for. To enable #3 and #4, CBL/iOS checks the server's "Server:" response 
> header to see if it's Sync Gateway 0.92 or later. So I don't believe this 
> will break interoperability with older versions of the Gateway, or earlier 
> versions of CBL (or Android), or CouchDB.
>
> (Android support will require implementing the equivalents of commits 
> 7d54535f08<https://github.com/couchbase/couchbase-lite-ios/commit/7d54535f08d2d9e6f47adae5000873d08d4187a7>
> , 
> d5afe611ee<https://github.com/couchbase/couchbase-lite-ios/commit/d5afe611eedcb2348540b2da76525ea954679ac7>
> , 
> cb27792d98<https://github.com/couchbase/couchbase-lite-ios/commit/cb27792d982d4197422828244338ba91cecf240c>.
>  
> It's pretty straightforward.)
>
> —Jens
>

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