Restkit version 1.2 introduced a WSGI proxy extension written by Gael Pasgrimaud .This extension proxy WSGI requests to a remote server.
Here is a quick example. You can read full post here .
We will do here a simple proxy for CouchDB. We use webob and gunicorn to launch it:
import urlparse
from webob import Request
from restkit.conn import TConnectionManager
from restkit.ext.wsgi_proxy import HostProxy
mgr = TConnectionManager(nb_connections=10)
proxy = HostProxy("http://127.0.0.1:5984", pool=mgr)
def application(environ, start_response):
req = Request(environ)
if 'RAW_URI' in req.environ:
# gunicorn so we can use real path non encoded
u = urlparse.urlparse(req.environ['RAW_URI'])
req.environ['PATH_INFO'] = u.path
# do smth like adding oauth headers ..
resp = req.get_response(proxy)
# rewrite response
# do auth ...
return resp(environ, start_response)
And then launch your application:
gunicorn -w 12 -a "egg:gunicorn#eventlet" couchdbproxy:application
And access to your couchdb at http://127.0.0.1:8000 .
You can also use a Paste configuration:
[app:proxy]
use = egg:restkit#host_proxy
uri = http://www.example.com/example_db
strip_script_name = false
allowed_methods = get
Here is a more advanced example to show how to use the Proxy class to build a distributed proxy. /a/db will proxify http://a.mypool.org/db:
import urlparse
from webob import Request
from restkit.conn import TConnectionManager
from restkit.ext.wsgi_proxy import Proxy
mgr = TConnectionManager(nb_connections=10)
proxy = Proxy(pool=mgr, strip_script_name=True)
def application(environ, start_response):
req = Request(environ).copy()
req.path_info_pop()
req.environ['SERVER_NAME'] = '%s.mypool.org:80' % req.script_name.strip('/')
resp = req.get_response(Proxy)
return resp(environ, start_response)