Twisted web POST example w/ JSON

This is an example of a simple asynchronous Python web server using . This is a copy of Jp Calderone's modified to accept a JSON payload in the POST request instead of form data. It also uses his to run the web server as a daemon with twistd.  

webserver.py

"""



usage:
        $ twistd -y webserver.py
"""


from pprint import pprint
from twisted.application.internet import TCPServer
from twisted.application.service import Application
from twisted.web.resource import Resource
from twisted.web.server import Site


class FormPage(Resource):
    def render_GET(self, request):
        return ''

    def render_POST(self, request):
        pprint(request.__dict__)
        newdata = request.content.getvalue()
        print newdata
        return ''


root = Resource()
root.putChild("form", FormPage())
application = Application("My Web Service")
TCPServer(8880, Site(root)).setServiceParent(application)

test_post.py

Here is a simple test client using to send a POST request with some JSON data. I used Mark Pilgrim's as a reference.

import httplib2
from datetime import datetime
import simplejson


TESTDATA = {'woggle': {'version': 1234,
                       'updated': str(datetime.now()),
                       }}
URL = ''

jsondata = simplejson.dumps(TESTDATA)
h = httplib2.Http()
resp, content = h.request(URL,
                          'POST',
                          jsondata,
                          headers={'Content-Type': 'application/json'})
print resp
print content

Run the web server

$ twisted -y webserver.py 

Run the test POST

$ python test_post.py 

twistd.log

Here are the results stored in twistd.log.

省略。。。。

Related posts

• Quick notes on trying the Twisted websocket branch example — posted 2010-05-24
• Running a Twisted Perspective Broker example with twistd — posted 2008-10-27
• Twisted links — posted 2008-10-21
• Can't block for a Deferred in Twisted — posted 2008-10-20
• Running functions periodically using Twisted's LoopingCall — posted 2008-10-14

from: http://www.saltycrane.com/blog/2010/08/twisted-web-post-example-json/