Google OAuth

Google OAuth 2.0 / OpenID Connect endpoint used for social login authentication in the Passport API. When users click "Sign in with Google," the authentication flow hits this endpoint for token exchange and identity verification. If Google OAuth is down (extremely rare), all Google-based sign-ups and logins fail — users must wait or use alternative login methods. The Passport API checks the OIDC discovery document on startup to cache signing keys. Contact Parth for OAuth client configuration or redirect URI changes.