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 vote325 views1 answer
Give an O (n lg k)-time algorithm to merge k sorted lists into one sorted list
TypeScript
6 votes298 views2 answers
After effects download
TypeScript
0 vote360 views1 answer
How to use client and webresource objects to do https call
TypeScript
0 vote320 views1 answer
Pending = pending$ async type 'boolean null' is not assignable
TypeScript
0 vote340 views1 answer
React inherit html input props
TypeScript
0 vote323 views1 answer
How to get value from observable
TypeScript
0 vote338 views1 answer
Create array of structs cpp
TypeScript
0 vote342 views1 answer
Components of selenium
TypeScript
0 vote365 views1 answer
Les différents types de cours
TypeScript
5 votes334 views1 answer
FIRST principle in testing
TypeScript