First try appcommon as library

projects/common/src/lib/services/nav-bar-guard.service.ts

@@ -0,0 +1,20 @@
+import { Injectable } from '@angular/core';
+import { CanLoad, Route, CanActivate, CanDeactivate, ActivatedRouteSnapshot, RouterStateSnapshot } from '@angular/router';
+
+import { Store } from '@ngrx/store';
+
+import * as appCommonReducer from '../reducers/app-common.reducer'
+import * as appCommonActions from '../actions/app-common.actions';
+
+
+@Injectable()
+export class NavBarGuard implements CanActivate {
+
+  private loginDispatched = false;
+  constructor(private store: Store<appCommonReducer.State>) { }
+
+  canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean {
+    this.store.dispatch(new appCommonActions.ShowNavBar());
+    return true;
+  }
+}