Unless you are using IE lower than 5.5, all clients support gzip. Looks
like 'Rocket' doesn't though. You could modify the 'write' on line 1758 to
gzip files though. Just have to set the content-length and content-encoding
yourself. You could add in a check to see if it's supported...
if 'gzip' in environ.get('HTTP_ACCEPT_ENCODING', ''):
#(if the http accept-encoding specifies gzip...) gzip it.
here's how i do it with wsgi middleware, but it should work here with
rocket... of course, it wouldn't work if you were using gevent to serve (as
an example). You could just plug in a middleware though. I took this from
the pylons
tutorial<http://pylonsbook.com/en/1.1/the-web-server-gateway-interface-wsgi.html#altering-the-response>
...
buffer = StringIO.StringIO()
output = gzip.GzipFile(
mode='wb',
compresslevel=self.compresslevel,
fileobj=buffer
)
I set compresslevel to 5, you could set it lower if you prefer speed to
filesize, that's up to you. I did find that I got the most size benefit
from compressing large json returns (like tables). However, I just set it
to compress everything except images, it seems to work great.
On Sunday, April 21, 2013 2:16:17 PM UTC-7, Ricardo Pedroso wrote:
>
> You can not "blindly" gzip your data unless you control the clients.
>
> It's the client that tells if it can accept gzip content or not,
> and the web server will choose to gzip it or not.
>
> I will advice you to let this to the web server.
>
> But if you really want to gzip yourself, than you should take care of the
> request headers, specifically the Accept-Encoding one, ex:
>
> Accept-Encoding: gzip, deflate
>
> than if you gzip you should tell the client about it in the response
> headers with:
>
> Content-Encoding: gzip
>
>
> http://en.wikipedia.org/wiki/HTTP_compression
>
> Ricardo
>
>
> On Sun, Apr 21, 2013 at 9:59 PM, Vincent <[email protected]<javascript:>>
> wrote:
> > Hi,
> >
> > I want to return gzipped json content (although the json part is not
> really
> > important).
> >
> > I did some googling and found this post which is somewhat related,
> > https://groups.google.com/d/msg/web2py/cgSrsC73vzg/ZNYN3u7ChVwJ
> > as far as I could tell the minify part of the question was answered but
> not
> > the gzipped part.
> >
> > I know some servers can compress, but I want to do the compression
> inside
> > web2py since my app may run on various server configurations. My
> objective
> > is to serve experimental data through a RESTful service.
> >
> > Basically, I am wondering if something like "generic.json.gz" already
> exists
> > built-in to web2py. Something that returns the gzipped form of the json
> of
> > the response.
> >
> > Does this already exist somewhere or do I need to write it myself?
> >
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