Angular cancel http request

// http-cancel.service.ts
// use this service as DI in component
import {Subject} from 'rxjs';
import {Injectable} from '@angular/core';

@Injectable()
export class HttpCancelService{
  private cancelPendingRequestSubject=new Subject<void>()
  cancelPendingRequest$ = this.cancelPendingRequestSubject.asObservable();

  cancelPendingRequest(){
    this.cancelPendingRequestSubject.next();
  }
}

==============================================================
//http-cancel-interceptor.service.ts
import {HttpEvent, HttpHandler, HttpInterceptor, HttpRequest} from '@angular/common/http';
import {Observable, takeUntil} from 'rxjs';
import {Injectable} from '@angular/core';
import {HttpCancelService} from './http-cancel.service';
import {tap} from 'rxjs/operators';

@Injectable()
export class CancelInterceptor implements HttpInterceptor{
  constructor(private cancelService: HttpCancelService) {
  }

  intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    return next.handle(req).pipe(takeUntil(this.cancelService.cancelPendingRequest$
      .pipe(tap(()=> {throw new Error('Request is canceled')}))));
  }
}
==============================================================
 // app.module.ts
  import {HTTP_INTERCEPTORS} from '@angular/common/http';
  ...
  providers: [
    ...
    {provide: HTTP_INTERCEPTORS, useClass: CancelInterceptor, multi: true}
    ...
  ],

Similar codes

0 vote160 views1 answer
Claire betts facebook
TypeScript
1 vote124 views1 answer
Track changes of input in angular
TypeScript
0 vote134 views4 answers
Typescript hello world
TypeScript
0 vote121 views1 answer
If exits python sql
TypeScript
0 vote122 views1 answer
Nmap find all hosts on a network
TypeScript
49 votes189 views6 answers
How to get duplicate values in sql
TypeScript
8 votes107 views1 answer
Styled components hover
TypeScript
6 votes130 views3 answers
Angular form set value
TypeScript
0 vote159 views1 answer
Deep partial typescript
TypeScript
0 vote113 views1 answer
Error TS2304: Cannot find name 'beforeEach'.
TypeScript