brings the spa auth track to the level of polish the bff surface
deserves. before this pr the header reflected sign-in state but
there were no protected routes and no global handling of session
drift; this pr lands one guard, two interceptors, and a demo
consumer that exercises the loop end-to-end.
authGuard (CanActivateFn):
gates routes on AuthService.state. waits out the bootstrap
`loading` state (filter+firstValueFrom on toObservable(state)),
allows when `authenticated`, redirects via auth.login() (full-
page navigation to the bff's /auth/login → entra round-trip)
when `anonymous` or `error`. error → same redirect as anonymous:
the bff-side login screen surfaces diagnostics more usefully
than a generic spa outage page would.
bffCredentialsInterceptor:
flips withCredentials: true on every request whose url starts
with AUTH_BFF_BASE_URL. replaces the per-call flag added in
#114 with a single point of truth; future bff calls inherit it
automatically.
bffUnauthorizedInterceptor:
calls AuthService.refresh() when a bff route (other than
/auth/me) answers 401. keeps the spa state in sync after
server-side session destruction (absolute-timeout, manual
revoke, idle-ttl expiry). /me is deliberately excluded —
refresh() itself calls /me, a 401 there would loop.
notable: the interceptor injects Injector and resolves
AuthService lazily inside catchError. injecting it eagerly at
the top would re-enter di while AuthService's own constructor
is still firing the bootstrap /me through this same
interceptor, raising a circular-construction error that
swallowed the request before the testing backend could record
it. standard angular pattern for "interceptor depends on a
service that uses HttpClient".
/profile demo route:
first real consumer of authGuard. lazy-loaded angular component
that renders the curated CurrentUser payload (displayName,
username, oid, tid). exercises the full loop guard → bff /me
→ spa render.
removed the per-call withCredentials: true from AuthService.refresh()
— the credentials interceptor handles it uniformly now. the spec
that pinned the per-call flag moved to
bff-credentials.interceptor.spec.ts where it belongs.
i18n: 6 new message ids + route.profile.title shipped with fr
translations in messages.fr.xlf.
19/19 feature-auth + 34/34 portal-shell + 123/123 portal-bff under
the clean-env ci repro (env -u redis_url … etc.). bundle main is
492 kb raw / 131 kb transfer — well under the 300 kb gzip budget
per adr-0017.
out of scope, landing in follow-ups:
- a real user-profile feature (settings, preferences, etc.)
- showing the auth-loading state on the route the guard blocks
(today the user sees the previous route until /me resolves)
Julien Gautier
9247e5e02e