Angular - Redux / Ngrx, Alternatives for state management

For a while now I have looked into Redux and Ngrx for Angular and have read a few tutorials on it but I still find it confusing and also a lot of extra work.

I was wondering if there's a simpler way or library to get application state management working without having to add all the extra files and code.

I would not even think of using it for small projects but as for large projects it might be handy for debugging but I'm still wondering what the alternatives are, and if there's a simpler / less confusing way to integrate state management into your application?
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Julian HansenCommented:
The simplest way is to add a service. But you will find if you do this that you end up writing the interfaces to that service anyway - not much more work than with ngrx.
error2013Author Commented:
What are the basic's of handling application state with a service? Do you have a link or simple example?
Julian HansenCommented:
A service is a global singleton that can be injected into any component.

So you would do something like this
import { Injectable } from '@angular/core';
// Any other module imports
export class StateService {
  // State data here in whatever form you want
  private dataItem1: Type;
  private dataItem2: SomeOhterType
  constructor() {  }


   getDataItems() {
      // return data or promise or observable here depending on requirements

   setStateItem(item: Type, value:Type) {
         // set state here - parameters may vary depending on requirements

   // Other state functions here

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In your App.module.ts
import { StateService } from './services/state.service';
// ... Other imports
  declarations: [
  imports: [
  providers: [StateService, /* ... Other providers */],
  bootstrap: [AppComponent]

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Using the service
import { Component, OnInit } from '@angular/core';

import { StateService } from '../services/state.service';

import { Observable } from 'rxjs';

  selector: 'app-shot-complete',
  templateUrl: './shot-complete.component.html',
  styleUrls: ['./shot-complete.component.css']
export class SomeComponent implements OnInit {
  data: Observable<Items[]>;
  constructor(private stateService: StateService) { 


  ngOnInit() {
    this.stateService.getDataItems().subscribe(data => = data);

  // Event handler
  doSomethingUseful(item:string, value:string) {
    this.stateService.setStateItem(item. value);

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The above is for illustration only - it is not presented as working code.

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error2013Author Commented:
Thanks :)
Julian HansenCommented:
You are welcome.
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