Angular HTTP Interceptors Version: Angular 21 (2025) Tags: HTTP, Interceptors, Auth, Middleware References: Interceptors Guide • API API Changes This section documents recent version-specific API changes. - NEW: Functional interceptors — Use instead of class-based - NEW: provideHttpClient with withInterceptors — Modern interceptor setup - NEW: HttpContext — Per-request metadata with HttpContextToken - DEPRECATED: Class-based HttpInterceptor — Migrate to functional Best Practices - Create functional interceptor - Register interceptors - Handle errors in interceptor - Use multiple interceptors…