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Learn to implement JSON Web Token (JWT) authentication in Angular 8 with Node.js backend. JWT provides a secure way to transmit data between parties. This tutorial covers token generation, interceptor creation, and handling on Angular frontend and Node.js backend, ensuring secure communication and authentication between client and server.
Angular Interceptor helps us modify the HTTP request by intercepting it before the request is sent to the backend. You can also change the incoming response from the backend. The Interceptor globally captures all incoming and outgoing requests in one place. We can use it to add custom headers to the outgoing request, log the incoming response.
HTTP Interceptors is a special type of angular service that we can implement. It's used to apply custom logic to the central point between the client-side and server-side outgoing/incoming HTTP request and response. Keep in mind that the interceptor wants only HTTP requests.
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