What is interceptor and where using and how to add interceptor for only selected requests?

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Accepted Answer

Interceptors are middleware functions that can be used to intercept and modify HTTP requests and responses.

Interceptors can be used in Angular to modify requests before they are sent to the server or responses before they are delivered to the application.
To add an interceptor for only selected requests, you can create a custom interceptor class that implements the HttpInterceptor interface and then provide it in the HTTP_INTERCEPTORS multi-provider array.
You can then use conditions within the interceptor to determine which requests should be intercepted and modified.
For example, you can check the request URL or headers to decide whether to apply the interceptor logic.

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