Start an OAuth authorization flow for the given provider. Returns the authorization URL to redirect the user to.
The OAuth provider identifier (e.g., "google", "apple")
"google"
The URI to redirect to after OAuth authorization.
"https://example.com/callback"
PKCE code challenge for the OAuth flow.
"E9Melhoa2OwvFrEMTJguCHaoeK1t8URWbuGJSstw-cM"
The identifier of the dispatch from the front-end SDK.
"123e4567-e89b-12d3-a456-426614174000"
OK
The URL to redirect the user to for OAuth authorization.
"https://accounts.google.com/o/oauth2/v2/auth?client_id=...&redirect_uri=...&scope=openid+email&state=..."