So, everything else works... to preface this. But, I haven't really moved outside the admin interface. I'm trying to get data from an API and insert it into the database if there's changes. I've managed to write a script that can do that (in theory... it can do it locally), but I can't get the app in the cloud to recognize its existence. I've followed Google's suggestion of adding it to the app.yaml and cron.yaml to no avail.
Do I need to add this to a urls.py? I haven't mucked with teh handlers at all thus far and I'm not sure what settings.py makes happen, what the yaml files make happen, and how much of this is pixie dust.
here are teh relevant files...
app.yaml
runtime: python
env: flex
entrypoint: gunicorn -b :$PORT mysite.wsgi
threadsafe: yes
beta_settings:
cloud_sql_instances: [redacted]
runtime_config:
python_version: 3
health_check:
enable_health_check: False
handlers:
- url: /static
static_dir: static/
- url: /run/get_data/
script: JSONdownload.app
login: admin
- url: .*
script: mysite.wsgi.application
cron.yaml
cron:
- description: "get data"
url: /run/get_data/
schedule: every 5 minutes
JSONdownload.py
#!/usr/bin/env python
# /var/spool/cron/crontabs
import json
import urllib2
from django.http import HttpResponse
from google.appengine.ext import webapp
from google.appengine.ext.webapp.util import run_wsgi_app
from .models import Game
from .models import Team
class JSONdownloadHandler(webapp.RequestHandler):
def get(self):
self.response.write('cron')
class MainHandler(webapp.RequestHandler):
def get(self):
self.response.write('yay')
I'm finding great resources for a basic python app... but none for this situation really... anyone know of something better than what I'm doing, PLEASE let me know!
You're mixing up elements of the flexible environment app.yaml with those of the standard environment app.yaml
In particular the script: JSONdownload.app portion is ignored. You need to add the handler for the /run/get_data/ path inside your mysite.wsgi app, maybe from there invoking the JSONdownload.py code.
Somehow related: cron job in google app engine not working.
So... it was that I didn't route to teh location. I was actually able to just set a route (with admin against it) to the URL and then able to call it via the cron.yaml.
Related
I am new to developing apps on google appengine and to python and jinja. I have been trying this since two days. My first app without jinja worked fine. However this particular app is not displaying anything on the browser. This is the main.py file
import webapp2
from webapp2_extra import jinja2
import logging
# this one is to help us parse an RSS feed
import feedparser
import urllib
class BaseHandler(webapp2.RequestHandler):
#webapp2.cached_property
def jinja2(self):
return jinja2.get_jinja2(app=self.app)
def render_response(self, _template, **context):
# Renders a template and writes the result to the response.
rv = self.jinja2.render_template(_template, **context)
self.response.write(rv)
class MainHandler(BaseHandler):
def get(self):
context = {}
self.render_response('index.html', **context)
# self.response.write('Byte1')
app = webapp2.WSGIApplication([
('/', MainHandler)
], debug=True)
And this is the app.yaml file
application: ykelkar-byte1
version: 1
runtime: python27
api_version: 1
threadsafe: yes
handlers:
- url: /favicon\.ico
static_files: favicon.ico
upload: favicon\.ico
- url: .*
script: main.app
libraries:
- name: webapp2
version: "2.5.2"
- name: jinja2
version: latest
I tried to run the sample code that I had and it is getting displayed. So there shouldn't be any installation/configuration issue.
First thing I noticed is that your import is wrong:
from webapp2_extra import jinja2
should be:
# You have a missing s!
from webapp2_extras import jinja2
In general, during development you should enable debugging to catch simple errors like this by setting up your WSGIApplication as follows:
app = webapp2.WSGIApplication([
('/', MainHandler)
], debug=True)
EDIT: Just noticed you already had debugging enabled. An error like this should have been showing you in your development console.
Are you using any particular IDE for development? I have found PyCharm to be a really good IDE for python development and google app engine specifically (The community edition is free). Maybe you should give it a try to help you out.
I am trying to study using Python in Google App Engine and can't get the tutorial to work. But ultimately, I would want to write a Python script that would return list of files in a folder in server to JavaScript.
Here's what I currently have:
+MainProj
+ static
+scripts
. __init__.py
. helloworld.py
. app.yaml
In helloworld.py
import webapp2
class MainPage(webapp2.RequestHandler):
def get(self):
self.response.headers['Content-Type'] = 'text/plain'
self.response.write('Hello, webapp2 World!')
app = webapp2.WSGIApplication([('/.*', MainPage)], debug=True)
In app.yaml
application: applicationname
version: 1
runtime: python27
api_version: 1
threadsafe: yes
handlers:
- url: /.*
script: static.scripts.helloworld.app
I am getting a server error
HTTP Error 500 (Internal Server Error): An unexpected condition was encountered while the server was attempting to fulfill the request.
Anyone can help what's wrong with my setup?
Every folder in your package path ('static.scripts.helloworld.app') needs to have __init__.py in it to import properly, so either add one to 'static' or (more sensibly, in my opinion) move helloworld.py up to the top, and use 'helloworld.app' in your app.yaml.
All you need in your app.yaml handler is:
- url: /.*
script: static.scripts.helloworld.py
And make sure you also have in your helloworld.py at the bottom code to actually start the application and listener:
from google.appengine.ext.webapp import util
# granted, you might want to replace "webapp" with "webapp2" here
def main():
util.run_wsgi_app(app)
if __name__ == '__main__':
main()
I have never written a python script in my life, but I have a question that can hopefully be solved pretty quickly...
I'm using Google App Engine and Dropbprox. The script uses a custom domain to point to your public DropBox folder for better DropBox URLs. I'd like to be able to redirect users to my main site (jacob.bearce.me) if they visit my dropbox url (dl.bearce.me).
The problems that I'm having:
I've never used GAE or Python before, so I have no idea where to even begin
Putting a index.html file in my GAE project didn't fix it (I was hoping it'd just default to that if there was no filename specified, like it would on a normal site, but no cigar.)
Just a simple redirect if a users visits the main URL is all I'm after, nothing fancy.
My Python file: http://dl.bearce.me/mirror.py
Here's a main.py that issues a redirect for all requests, using the Python 2.5 runtime environment:
from google.appengine.ext import webapp
from google.appengine.ext.webapp import util
class MainHandler(webapp.RequestHandler):
def get(self):
self.redirect('http://jacob.bearce.me/')
application = webapp.WSGIApplication([('/.*', MainHandler)],
debug=True)
def main():
util.run_wsgi_app(application)
if __name__ == '__main__':
main()
And here's the app.yaml file you need to route URLs to this handler:
application: myapp
version: 1
runtime: python
api_version: 1
handlers:
- url: .*
script: main.py
(Replace myapp with your actual app ID.)
For more information about creating and uploading an App Engine app in Python, see the Getting Started tutorial.
Can someone give an example of how the warmup inbound service works in the python runtime of Google App Engine?
I've read this: http://code.google.com/appengine/docs/python/config/appconfig.html#Inbound_Services, but it doesn't give me much of an example after the GET request is sent (I can't seem to ever pick it up)
My app.yaml looks like this:
application: whatevs
version: 1
runtime: python
api_version: 1
builtins:
- datastore_admin: on
inbound_services:
- warmup
handlers:
- url: /static
static_dir: static
- url: /_ah/warmup
script: main.py
login: admin
- url: /.*
script: main.py
my main.py looks like this:
def main():
application = webapp.WSGIApplication(
[("/", views.LandingPage),
("/_ah/warmup", views.WarmupHandler)
],
debug=True)
run_wsgi_app(application)
WarmupHandler looks like this:
class WarmupHandler(webapp.RequestHandler):
"""
Called on app init
"""
def get(self):
current_user = users.get_current_user()
return
However, WarmupHandler never seems to get called (I have breakpoints and lots of debug code). What am I doing wrong?
App Engine sends warm up requests only if there is some constant traffic on your app. It won't get always called if instances stand mostly idle.
application = webapp.WSGIApplication(
[(r'/main/profile/([a-f0-9]{40})', ProfileHandler)],
debug=True)
The regex in the above parameter will not recognize a 40 hex long hexdigest in Google App Engine.
I'm getting 404s instead of ProfileHandler being passed the matching 40 hex long profile ID. My app.yaml passes everything /main/.* to the correct python script so that's not the issue. The regex looks sane and resembles the example regex in GAE docs. What is wrong with this regex?
I can not reproduce your problem. Here is an exact code I have:
index.py
from google.appengine.ext import webapp
from google.appengine.ext.webapp.util import run_wsgi_app
class ProfileHandler(webapp.RequestHandler):
def get(self, *ar, **kw):
self.response.out.write("PROFILE IS:" + ar[0])
run_wsgi_app(webapp.WSGIApplication(
[(r'/main/profile/([a-f0-9]{40})', ProfileHandler),],
debug=True))
app.yaml
application: someapp
version: 1
runtime: python
api_version: 1
handlers:
- url: /main/.*
script: index.py
Application is listening on port 8082
GET: http://localhost:8082/main/profile/4c4f630aef49c0065c22eb3dd35a00f5787f4816
RESPONSE: PROFILE IS:4c4f630aef49c0065c22eb3dd35a00f5787f4816
I have no experience with the Google App Engine, but:
what happens if you change ([a-f0-9]{40}) in to ([a-fA-F0-9]{40})
are you sure group $1 is used and not the entire match (including /main/profile/)?