Login From Multiple OAuth Services, Keeping Profiles in Sync

Posted by viatropos on Stack Overflow See other posts from Stack Overflow or by viatropos
Published on 2010-05-10T00:17:05Z Indexed on 2010/05/10 0:18 UTC
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authentication

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oauth

Given the following:

I have an application that allows people to login through twitter, myspace, yahoo, and google
User creates initial account by logging in through Google
User logs out
User logs back in using Yahoo.

...is there a recommended way for the application to associate those two accounts together? Stack Overflow has this functionality but it seems like they need the user to manually say "this account google account is associated with that yahoo one". Is there no way to do this automatically?

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