CODEWITHSUNDEEP
pythongoogle-app-engine
papercuts
papercuts

Reputation: 1438

Trying to run GAE python - not sure if imports and app.yaml is configured correctly

I'm trying to deploy the following python code named image-getter.py in GAE:

from google.appengine.ext import db
from google.appengine.ext import webapp
from google.appengine.ext import os
from google.appengine.ext.webapp.util import run_wsgi_app

#the addimage endpoint
class AddImage(webapp.RequestHandler):
    def post(self):
        image = self.request.get('image')
        i = Image()
        i.picture = db.Blob(image)
        i.put()
        self.response.out.write('done');

#the Image object: 
class Image(db.Model):
    picture = db.BlobProperty();

#to get the image  : /getimage?key=sdfsadfsf...
class GetImage(webapp.RequestHandler):
    def get(self):
        images_query = Image.get(self.request.get('key'))
        if (images_query and images_query.picture):
            self.response.headers['Content-Type'] = "image/jpeg"
            self.response.out.write(images_query.picture)

#to draw the images out to the main page: 
class MainPage(webapp.RequestHandler):
    def get(self):
        images = db.Query(Image)
        keys = [];
        for image in images:
            keys.append(str(image.key()))

        template_values = {'images' : keys}
        path = os.path.join(os.path.dirname(__file__), 'index.html')
        self.response.out.write(template.render(path, template_values))

def main():
    app = webapp.WSGIApplication(
        [('/', MainPage),
        ], debug=True)

The above code uses the os library, but I thought you weren't allowed to us it in GAE.

My app.yaml file looks like:

application: myapp
version: 1
runtime: python27
api_version: 1
threadsafe: true

handlers:
- url: /
  script: image-getter.app

libraries:

The html, index.html file looks like:

<div>
{% for i in images %}
<img src="/getimage?key={{i}}" />
{% endfor %}
</div>

I can't seem to get the app to run, I get "Error: Server Error," which isn't awfully helpful.

Thank!

Upvotes: 0

Views: 49

Answers (1)

marcadian
marcadian

Reputation: 2618

There is no image-getter.app in your image-getter.py. Also there is no routing in your image-getter.py check example here https://developers.google.com/appengine/docs/python/gettingstartedpython27/helloworld

You need to add something like 

app = webapp2.WSGIApplication([
    ('/', MainPage),
], debug=True)

When you post code, please include the import statements, your code seems invalid because it does not import the db module.

Upvotes: 2

Related Questions