From 313ca4def29bdc178c0ef03a26456df349862a56 Mon Sep 17 00:00:00 2001
From: IT-Ideas <IT-Ideas@users.noreply.github.com>
Date: Fri, 3 Feb 2017 14:44:55 +0100
Subject: [PATCH 1/2] Usage in multiple shared modules

Update in order to use the same instance of the notifications service in different shared modules.

forRoot() is called in the main app module only.
---
 src/simple-notifications.module.ts | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/simple-notifications.module.ts b/src/simple-notifications.module.ts
index d3f58f2..0a66225 100644
--- a/src/simple-notifications.module.ts
+++ b/src/simple-notifications.module.ts
@@ -8,8 +8,16 @@ import {MaxPipe} from './max.pipe';
 @NgModule({
   imports: [CommonModule],
   declarations: [SimpleNotificationsComponent, NotificationComponent, MaxPipe],
-  providers: [NotificationsService],
+  providers: [],
   exports: [SimpleNotificationsComponent]
 })
 export class SimpleNotificationsModule {
+  public static forRoot(): ModuleWithProviders {
+    return {
+      ngModule: SimpleNotificationsModule,
+      providers: [
+        NotificationsService
+      ]
+    };
+  }
 }

From c8f2e8bf7712c722cd4627d905bdc23dd52af45e Mon Sep 17 00:00:00 2001
From: IT-Ideas <IT-Ideas@users.noreply.github.com>
Date: Fri, 3 Feb 2017 14:50:01 +0100
Subject: [PATCH 2/2] Updated import accordingly

---
 src/simple-notifications.module.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/simple-notifications.module.ts b/src/simple-notifications.module.ts
index 0a66225..b881870 100644
--- a/src/simple-notifications.module.ts
+++ b/src/simple-notifications.module.ts
@@ -1,4 +1,4 @@
-import {NgModule} from '@angular/core';
+import {NgModule, ModuleWithProviders} from '@angular/core';
 import {CommonModule} from '@angular/common';
 import {NotificationsService} from './notifications.service';
 import {SimpleNotificationsComponent} from './simple-notifications.component';