Hello,
citing
*http://stackoverflow.com/questions/30237946/google-app-engine-inter-module-communication-authorization#comment49814138_30237946*
the problem I have is that in the Docs (communication between modules)
<https://cloud.google.com/appengine/docs/python/modules/#Python_Communication_between_modules>
it
says:
*You can configure any manual or basic scaling module to accept requests
> from other modules in your app by restricting its handler to only allow
> administrator accounts, specifying login: admin for the appropriate handler
> in the module's configuration file. With this restriction in place, any
> URLFetch from any other module in the app will be automatically
> authenticated by App Engine, and any request that is not from the
> application will be rejected.*
>
And this is exactly the configuration I have for my module called "api1".
In my *app.yaml* file I have:
# can accept requests from other modules. with login: admin and they are
authenticated automatically.
- url: /.*
script: _go_app
login: admin
I'm trying now, from a different module in the same app, to make a service
call as suggested in the doc using *urfetch.fetch()* method, and my
implementation is:
from google.appengine.api import urlfetch, modules, app_identity
from rest_framework.response import Response, status
@api_view(['POST'])
def validate_email(request):
url = "http://%s/"; % modules.get_hostname(module="api1")
payload = json.dumps({"SOME_KEY":"SOME_VALUE"})
appid = app_identity.get_application_id()
result = urlfetch.fetch(url + "emails/validate/document",
follow_redirects=False,
method=urlfetch.POST,
payload=payload,
headers={"Content-Type":"application/json")
return Response({
'status_code': result.status_code,
'content': result.content
}, status=status.HTTP_200_OK)
According to the documentation, having specified the
*follow_redirects=False*, *fetch()* will automatically insert an header in
my call (I've even tried to add it explicitly) with the
*"X-Appengine-Inbound-Appid"
: MY-APP-ID*.
Unfortunately I get as result of the fetch call a 302 redirect, if I follow
it, it's a redirect to the authentication form. This occurs in Development
server as well as in Production.
Can you please let me know how can I call my *api1* service inside my
*validate_email* document (belonging to a different module in the same app)?
Is there another way to authenticate the call since it seems the way
suggested inside the documentation is not working?
Thank you
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