I think you mixing up a couple things here: (1) you want to authenticate users agains your app; (2) you want to call external services like Predictions API (presumably on behalf of your users?).
There are built-in Users API and OAuth (only 1.0; 2.0 is within the trusted testers like I mentioned) services available for doing (1). Or you can do your own custom solutions, like username/password. For doing (2), you should probably take a look at https://developers.google.com/accounts/docs/OAuth2InstalledApp but again, this has nothing to do with (1) unless you require all your users to have a Google account. If impersonating a user is not what you really want then probably Service accounts is what you're looking for: https://developers.google.com/accounts/docs/OAuth2ServiceAccount Though, I think the best thing is to ask folks at OAuth 2.0 forum: https://groups.google.com/forum/#!forum/oauth2-dev Sorry if I misunderstood what you're actually trying to do. -- alex On Thu, Sep 27, 2012 at 3:16 PM, Daniel Perry <[email protected]> wrote: > Hi Alex, > Thanks for your comment. > I am trying to access my own app deployed on production servers. > However, my application is a java application so the scope is in the > web.xml, as far as I understand. > I can set the scope for only part of the application, too. > However, I'm trying to authenticate a user using an installed application, > not a web page. For this I need a secret key. > These are available when registring to use a google service like, in my > case, the prediction API. I'm unable to figure out how to get OAuth 2.0 > secrets for my appengine app. I can register to get OAuth 1.0 secret and key > but, as I wrote in a previous post, I failed to complete the OAth 1.0 dance > successfully. > Have you previously used OAuth 2.0 from an installed application? > Thanks, > Daniel > > > On Thursday, September 27, 2012 10:47:53 AM UTC+2, alex wrote: >> >> Hey Daniel, >> >> If you're trying to access your own app deployed on production >> servers, it's already available: see appcfg.py --oauth2. Look inside >> appcfg.py - there's a specific scope for that. Off the top of my head, >> it must be something like >> "https://www.googleapis.com/auth/appengine.admin"; but I'm not sure. >> Though, if I'm not mistaken, it currently authorizes for the whole app >> (all or nothing, i.e. as an admin). >> >> Otherwise, if you're talking about an app exposing some kind of API to >> external parties, OAuth 2.0 is available within Endpoints service, >> which is currently under trusted tester program. You can sign up here: >> http://endpoints-trusted-tester.appspot.com/ >> >> -- alex >> >> On Wed, Sep 26, 2012 at 7:23 PM, Daniel Perry <[email protected]> wrote: >> > Hi, >> > As I can't seem to get help regarding my failure to use OAuth 1.0 to >> > access >> > my appengine application, are there plans to add OAuth 2.0 support to >> > enable >> > authentication using this method? Or, perhaps, if such support already >> > exists, how do I get the correct key for authenticating an installed >> > application to use my appengine servlet? >> > The use of OAuth 1.0 appears to be deprecated but still operational, but >> > I >> > would prefer 2.0, in any case. >> > Thanks, >> > Daniel >> > >> > -- >> > You received this message because you are subscribed to the Google >> > Groups >> > "Google App Engine" group. >> > To view this discussion on the web visit >> > https://groups.google.com/d/msg/google-appengine/-/N63R_R7OgWsJ. >> > To post to this group, send email to [email protected]. >> > To unsubscribe from this group, send email to >> > [email protected]. >> > For more options, visit this group at >> > http://groups.google.com/group/google-appengine?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To view this discussion on the web visit > https://groups.google.com/d/msg/google-appengine/-/_PKJrhm5AR4J. > > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/google-appengine?hl=en. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
