http-client

Centralized error handling for Angular HttpClient is implemented using RxJS patterns within HTTP interceptors to catch errors and apply retry strategies for transient failures. This approach structures error processing across all RESTful endpoints globally.

Authentication tokens are injected into Angular HttpClient requests by configuring request interceptors. The interceptor clones outgoing requests to append authorization headers, securing REST API communication across the application.

Type-safe API services in Angular are built by defining TypeScript interfaces for response models and using HttpClient generic methods. Integrating RxJS observables ensures robust API calls with structured data typing.

HTTP interceptors are needed to handle cross-cutting concerns like logging, token injection, and error processing without duplicating code. They intercept request and response pipelines to manage authentication flows centrally.

Yes, this HttpClient approach handles 401 responses and transient errors. It uses interceptor-driven auth to catch 401 statuses and applies RxJS retry logic to automatically recover from temporary network failures.

Yes, you can use HttpClient interceptors for both logging and auth simultaneously. Interceptors process the request and response pipeline, enabling token injection for authentication and structured logging for debugging.