Ask HN: Sign Up with Facebook/Apple/Google

Ask HN: Sign Up with Facebook/Apple/Google – API or OAuth?

Posted by brittpart_ on Sunday December 27, 2020 @05:19PM
from the ask-hn dept.

What is this technology called? An API, OAuth? I'm trying to do some research on how this works but I'm not sure what I should be researching.

( 3 comments | 2 points | on HN )

Re:Ask HN: Sign Up with Facebook/Apple/Google – API or OAuth? by noodlesUK on Sunday December 27, 2020 @05:34PM (#25554858)

Social login and SSO is generally implemented these days as OIDC (which is based on oauth2). You can read the RFCs for it, and they pretty much explain the whole thing.

Oauth2: https://tools.ietf.org/html/rfc6749

PKCE (replaces the implicit flow): https://tools.ietf.org/html/rfc7636

OIDC: https://openid.net/specs/openid-connect-core-1_0.html

[ Parent | on HN ]

Re:Ask HN: Sign Up with Facebook/Apple/Google – API or OAuth? by brittpart_ on Sunday December 27, 2020 @06:58PM (#25555291)

So essentially the UI is called SSO and the authentication happens with Oauth2/OIDC - that's the combo Apple uses.

Do you know what the barrier to entry is for a company to integrate another company's SSO?

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Re:Ask HN: Sign Up with Facebook/Apple/Google – API or OAuth? by cuu508 on Sunday December 27, 2020 @05:28PM (#25554821)

They don't always make it obvious, but it is usually OAuth2, sometimes with tweaks

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