I am writing a GAE application that when it starts needs to initialise a connection to a third party service, and then run a continuous check in the background (essentially pulling data from third party and pushing it to a GAE task queue)
I know that backends get a call to /_ah/start which initialises them and lets GAE know the backend has started. Is it safe to start the pull process from StartHandler, ie
f = urllib2.urlop
for l in f:
deferred.defer(doMyStuff,l)
I think the answer is to have a StartHandler along the lines of:
class StartHandler(webapp2.RequestHandler):
def get(self):
logging.info("Handler started")
key = self.request.get('key')
taskqueue.add('/backend/startdata', params={'key':key}, target='1.backend0')
and then have the handler for /backend/startdata
run the loop.
Advice and comments welcome.
Answer to this question. Google App Engine will not let this work. I gave it up and used a different cloud provider , because life's too short, and python should be python, anywhere.
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