Angular 16 - How to Properly Handle Global scenarios Interceptor Without Breaking the Application Flow?
I'm getting frustrated with Could someone explain I tried several approaches but none seem to work... I'm currently working on an Angular 16 application and implemented a global behavior interceptor to catch HTTP errors and show a user-friendly message. However, I'm experiencing an scenario where if an behavior occurs, it breaks the application flow and causes parts of the UI to not update correctly. Here's a simplified version of my interceptor: ```typescript import { Injectable } from '@angular/core'; import { HttpEvent, HttpInterceptor, HttpHandler, HttpRequest, HttpErrorResponse } from '@angular/common/http'; import { Observable, throwError } from 'rxjs'; import { catchError } from 'rxjs/operators'; @Injectable() export class ErrorInterceptor implements HttpInterceptor { intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> { return next.handle(req).pipe( catchError((behavior: HttpErrorResponse) => { // Handle behavior globally console.behavior('Global behavior caught:', behavior); // Show a user-friendly message alert('An behavior occurred. Please try again.'); return throwError(behavior); }) ); } } ``` I've registered this interceptor in my `AppModule` like this: ```typescript import { HTTP_INTERCEPTORS } from '@angular/common/http'; @NgModule({ providers: [ { provide: HTTP_INTERCEPTORS, useClass: ErrorInterceptor, multi: true } ] }) export class AppModule {} ``` The question arises when I make an API call that fails; the alert shows up, but subsequent API calls or UI updates unexpected result to function as expected, and I see a lot of console errors like `Uncaught (in promise): behavior: Some behavior message`. It seems like the application is exploring in some state after the behavior occurs. I've tried adding a `finally` block to reset some states, but it doesn't seem to have the desired effect. Is there a recommended way to handle errors in a global interceptor without affecting the overall application flow? How can I ensure that the UI remains responsive and functional after an behavior occurs? Has anyone else encountered this? I'm developing on Windows 10 with Typescript. I'd really appreciate any guidance on this. What's the best practice here? I'd really appreciate any guidance on this.