use gun for todo list

examples/angular/src/app/app.module.ts

@@ -1,7 +1,10 @@
 import { BrowserModule } from '@angular/platform-browser';
-import { NgModule } from '@angular/core';
+import { NgModule, Injectable } from '@angular/core';
 import { FormsModule } from '@angular/forms';
 import { HttpModule } from '@angular/http';
+import { Observable } from 'rxjs/Observable';
+
+import Gun from 'gun/gun';
 
 import { AppComponent } from './app.component';
 
@@ -14,7 +17,13 @@ import { AppComponent } from './app.component';
     FormsModule,
     HttpModule
   ],
-  providers: [],
+  providers: [GunDb],
   bootstrap: [AppComponent]
 })
 export class AppModule { }
+
+@Injectable()
+export class GunDb {
+
+  readonly gun = Gun(location.origin + '/gun');
+}