OpenID Connect

外部認証プロバイダによる認証の仕様。OAuth2を認証できるように拡張したもの。

※ OAuth2は認可プロトコルであり、ログイン用に使用することはできません

OpenID Connect Discovery

OpenIDプロバイダの設定情報を確認できる

Google Account	https://accounts.google.com/.well-known/openid-configuration
Microsoft ID	https://login.microsoftonline.com/common/v2.0/.well-known/openid-configuration
SalesForce	https://login.salesforce.com/.well-known/openid-configuration
Line	https://access.line.me/.well-known/openid-configuration
PayPal	https://www.paypalobjects.com/.well-known/openid-configuration
Yahoo Japan	https://auth.login.yahoo.co.jp/yconnect/v2/.well-known/openid-configuration
Cognito	https://cognito-idp.{region}.amazonaws.com/{user_pool_id}/.well-known/openid-configuration

未確認

Apple ID	https://appleid.apple.com/.well-known/openid-configuration
Slack	https://slack.com/.well-known/openid-configuration
FaceBook	https://www.facebook.com/.well-known/openid-configuration/