Hi James,
As pointed out by someone else earlier, the redirect URI needs to be https.
Also, if you are using Python, I've found the easiest method to implement
Oauth2 is to use the Oauth2Decorator supplied by Google.
See
https://developers.google.com/api-client-library/python/guide/google_app_engine#Decorators
It makes using Oauth a breeze! The example about halfway down the page
shows just how neat and simple it is. When I switched to using the
decorator, it saved me at least a page of code, and is more reliable and
results in neater code too.
Cheers,
Julie
On 6 June 2013 17:29, James Gralton james.gral...@ocado.com wrote:
Hi,
I am new to App Engine and am trying to write an application which will
access Google Calendar to get details of any events for the current time. I
am struggling to see how the authentication should work to permit access to
Calendar. I believe OAuth2 is the preferred authentication option so I have
a client_secrets.json file with the ClientID and Client Secret from an API
Access project I have separately created:
{
web:{
auth_uri:https://accounts.google.com/o/oauth2/auth;,
client_secret:xxx,
token_uri:https://accounts.google.com/o/oauth2/token;,
client_email:...@developer.gserviceaccount.com,
redirect_uris:[https://myapp.appspot.com/oauth2callback;],
client_x509_cert_url:
https://www.googleapis.com/robot/v1/metadata/x509/...@developer.gserviceaccount.com
,
client_id:123456789.apps.googleusercontent.com,
auth_provider_x509_cert_url:https://www.googleapis.com/oauth2/v1/certs;
,
javascript_origins:[https://myapp.appspot.com;]
}
}
This was a direct export from the API Access project using the 'Download
JSON' option. When I deploy my app engine application I get an error:
Error: redirect_uri_mismatch
The redirect URI in the request: http://myapp.appspot.com/oauth2callbackdid
not match a registered redirect URI
Learn more http://code.google.com/apis/accounts/docs/OAuth2.html
Request Details
scope=https://www.googleapis.com/auth/calendar
response_type=code
access_type=offline
redirect_uri=https://myapp.appspot.com/oauth2callback
display=page
client_id=123456789.apps.googleusercontent.com
It all looks fine to me so I am not sure what the error is telling me. Do
I need link the App Engine application to the API Access project in some
way. Am I missing something else fundamental.
If there is any additional information which will help you understand the
set up please let me know. I wanted to keep the post small.
Thanks
James
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