comparison - Which App Engine Authentication Method should I choose? (Pros/Cons) -

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i experimenting google app engine , went create app asked me choose authentication method. options 'google account' or 'openid', 'google apps domain' option doesn't interest me. however, can't find information in documentation lists pros/cons of either method.

my question pros , cons of each of methods?

thanks.

not sure of exact pros , cons biggest with

  • google account - users forced have google account
  • open id - users must have account open id provider listed here.

open id how logins on stackoverflow works.


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