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":"xxxxxxx", > > "token_uri":"https://accounts.google.com/o/oauth2/token";, > > "client_email":"xxxx...@developer.gserviceaccount.com", > > "redirect_uris":["https://myapp.appspot.com/oauth2callback";], > > "client_x509_cert_url":" > https://www.googleapis.com/robot/v1/metadata/x509/xxxx...@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 > > Notice: This email is confidential and may contain copyright material of > Ocado Limited (the "Company"). Opinions and views expressed in this message > may not necessarily reflect the opinions and views of the Company. > > If you are not the intended recipient, please notify us immediately and > delete all copies of this message. Please note that it is your > responsibility to scan this message for viruses. > > Company reg. no. 3875000. > > Ocado Limited > Titan Court > 3 Bishops Square > Hatfield Business Park > Hatfield > Herts > AL10 9NE > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to google-appengine+unsubscr...@googlegroups.com. > To post to this group, send email to google-appengine@googlegroups.com. > Visit this group at http://groups.google.com/group/google-appengine?hl=en. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at http://groups.google.com/group/google-appengine?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
