Intro to Angular Http Interceptors
This article has been updated to the latest version Angular 17 and tested with Angular 16. The content is likely still applicable for all Angular 2 + versions.
I recently got the change to write a guest blog post on Ultimate Courses about Angular HTTP Interceptors!
Angular provides many built-in tools to help scale out large JavaScript applications. Interceptors are one of the built-in tools for specifically handling HTTP requests at a global application level.
Often we want to enforce or apply behavior when receiving or sending HTTP requests within our application. Interceptors are a unique type of Angular Service that we can implement. Interceptors allow us to intercept incoming or outgoing HTTP requests using the HttpClient. By intercepting the HTTP request, we can modify or change the value of the request.
In this post, we cover three different Interceptor implementations:
- Handling HTTP Headers
- HTTP Response Formatting
- HTTP Error Handling
