midIonic
HTTP Interceptors for Auth Headers
Updated Apr 28, 2026
Short answer
Mastering Interceptors is key for building scalable production apps.
Deep explanation
How do you automatically attach a Bearer token to every outgoing request?
Real-world example
Ensuring API calls are always authenticated without manual header injection.
Common mistakes
- Memory leaks due to un-unsubscribed Observables.
Follow-up questions
- Why use an Interceptor?