Angular #57 - HTTP Interceptor | Logging Http Request (Log all HTTP Request using Interceptor)
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HTTP Interceptor
With interception, you declare interceptors that inspect and transform HTTP requests from your application to a server. The same interceptors can also inspect and transform a server's responses on their way back to the application. Multiple interceptors form a forward-and-backward chain of request/response handlers.
Interceptors can perform a variety of implicit tasks, from authentication to logging, in a routine, standard way, for every HTTP request/response.
Without interception, developers would have to implement these tasks explicitly for each HttpClient method call.
The angular cli cmd to create interceptor : ng g interceptor interceptor-name