socialmedian: Google App Engine + Memcached + FF To Go = Bliss

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Google App Engine + Memcached + FF To Go = Bliss

Source: benjamingolub.com

May 29, 2008

Summary

Google App Engine gained support for memcached today, a very high performance caching system, and I’m already using it in FF To Go.

I’ll share some code with you so you know how it works. This is the code that renders the public feed:

def public(request):
f = friendfeed.FriendFeed()
try:
start = int(request.GET.get('start', 0))
except:
start = 0
service = request.GET.get('service', None)
num = int(request.session.get('num', NUM))
key = 'public_%i_%i_%s' % (num, start, service)
data = memcache.get(key)
if not data:
try:
data = f.fetch_public_feed(num=num, start=start, service=service)
except Exception, e:
return HttpResponseRedirect('/%s/' % e)
memcache.set(key, data, CACHE_TIME)
extra_context = {
'entries': data['entries'],
‘next’: start + num,
}
if start > 0:
extra_context['has_previous'] = True
extra_context['previous'] = start - num
return render_to_response(’public.html’, extra_context, context_instance=RequestContext(request))

And that’s

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