Extract
app.yaml
application: valueref
version: 1
runtime: python
api_version: 1
handlers:
- url: /refvalue
script: refvalue.py
login: admin
cron.yaml
cron:
- description: refresh "value"
url: /refvalue
schedule: every 6 hours
refvalue.py
import re
import wsgiref.handlers
from google.appengine.ext import db
from google.appengine.ext import webapp
from google.appengine.api import urlfetch
class Value(db.Model):
thevalue = db.IntegerProperty()
when = db.DateTimeProperty(auto_now_add=True)
class RefValueHandler(webapp.RequestHandler):
def get(self):
resp = urlfetch.fetch('http://www.dailyfx.com/files/Calendar-11-28-2010.csv')
mo = re.match(r'Value=(\d+)', resp.content)
if mo:
val = int(mo.group(1))
else:
val = None
valobj = Value(thevalue=val)
valobj.put()
def main():
application = webapp.WSGIApplication(
[('/refvalue', RefValueHandler),], debug=True)
wsgiref.handlers.CGIHandler().run(application)
if __name__ == '__main__':
main()