Angular: How to Handle Errors With an HTTP Interceptor Let's face it: your Angular app will encounter HTTP errors from time to time. When that happens, you'd better be ready to handle them.
Angular: How to Send JSON Web Tokens With Every Request Using an HTTP Interceptor If you use JSON web tokens to authenticate users in your Angular app, then you need to send those tokens to the server with every request. Fortunately, you can do that easily with an HTTP Interceptor.