User's Idle Service for Angular 6

angular-user-idle service for Angular 6+ to detect and monitor user inactivity.

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Service logic:

The user is inactive for 10 minutes
onTimerStart() is to fire and return a 5-minute countdown
If the user does not stop the timer via stopTimer(), then the timer is over, and onTimeout() is fired.

How to Detect User Inactivity Using Javascript | Idle Tracker

How to make use of it:

Installation:

npm install angular-user-idle

1. In app.module.ts:

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';

import { UserIdleModule } from 'angular-user-idle';

import { AppComponent } from './app.component';

@NgModule({
  imports: [
    BrowserModule,
    
    // Optionally you can set time for `idle`, `timeout` and `ping` in seconds.
    // Default values: `idle` is 600 (10 minutes), `timeout` is 300 (5 minutes) 
    // and `ping` is 120 (2 minutes).
    UserIdleModule.forRoot({idle: 600, timeout: 300, ping: 120})
  ],
  declarations: [AppComponent],
  bootstrap: [AppComponent]
})
export class AppModule {}

2. The user service must start idle in one of the core components or services of your application, for example, login.component.ts:

import { Component, OnInit } from '@angular/core';
import { UserIdleService } from 'angular-user-idle';

@Component({
  templateUrl: './login.component.jade'
})
export class LoginComponent implements OnInit {

  readonly googlePlayLink: string;
  readonly appStoreLink: string;

  constructor(private userIdle: UserIdleService) {
  }

  ngOnInit() {
    //Start watching for user inactivity.
    this.userIdle.startWatching();
    
    // Start watching when user idle is starting.
    this.userIdle.onTimerStart().subscribe(count => console.log(count));
    
    // Start watch when time is up.
    this.userIdle.onTimeout().subscribe(() => console.log('Time is up!'));
  }

  stop() {
    this.userIdle.stopTimer();
  }

  stopWatching() {
    this.userIdle.stopWatching();
  }

  startWatching() {
    this.userIdle.startWatching();
  }

  restart() {
    this.userIdle.resetTimer();
  }
}