The router store is in an NPM package and we can therefore type the following to install it:

npm install @ngrx/router-store --save

The next thing we need to do is to import the correct modules and set those up in the import properties of our root module, like so:

import { BrowserModule } from '@angular/platform-browser';
import { NgModule, Injectable } from '@angular/core';
import { StoreModule, Action } from '@ngrx/store';
import { AppComponent } from './app.component';
import { counterReducer } from './reducer';
import { TodoModule } from './todo/todo.module';
import { todosReducer } from './todo/reducer';
import { JediModule } from './jedi/jedi.module';
import { jediListReducer } from './jedi/list.reducer';
import { productsReducer } from './products/products.reducer';
import { StoreDevtoolsModule } from '@ngrx/store-devtools';
import { ProductsModule } from './products/products.module';
import { StoreRouterConnectingModule, routerReducer } from '@ngrx/router-store';
import { RouterModule } from '@angular/router';
import { TestingComponent } from './testing.component';
import { Effect, ofType, Actions } from '@ngrx/effects';
import { Observable } from 'rxjs/Observable';
import { switchMap } from 'rxjs/operators';
import { of } from 'rxjs/observable/of';
import { EffectsModule } from '@ngrx/effects';

@NgModule({
  declarations: [AppComponent, TestingComponent],
  imports: [
    BrowserModule,
    StoreModule.forRoot({
      count: counterReducer,
      todos: todosReducer,
      jediList: jediListReducer,
      products: productsReducer,
      router: routerReducer
    }),
    EffectsModule.forRoot([]),
    RouterModule.forRoot([{ path: 'testing', component: TestingComponent }]),
    StoreRouterConnectingModule.forRoot({
      stateKey: 'router' // name of reducer key
    }),
    StoreDevtoolsModule.instrument({
      maxAge: 25 // Retains last 25 states
    }),
    TodoModule,
    JediModule,
    ProductsModule
  ],
  bootstrap: [AppComponent]
})
export class AppModule {}

We don't do a lot here. We call the forRoot() method on the StoreRouterConnectingModule, and we also add a new reducer entry in the form of a router that points to routerReducer as the reducer that will handle any changes to the router property.