service added

src/app/app.module.ts

@@ -7,9 +7,12 @@ import { IonicModule, IonicRouteStrategy } from '@ionic/angular';
 import { AppRoutingModule } from './app-routing.module';
 import { AppComponent } from './app.component';
 
+import { HttpClientModule } from '@angular/common/http';
+
+
 @NgModule({
   declarations: [AppComponent],
-  imports: [BrowserModule, IonicModule.forRoot(), AppRoutingModule],
+  imports: [BrowserModule, IonicModule.forRoot(), AppRoutingModule, HttpClientModule],
   providers: [{ provide: RouteReuseStrategy, useClass: IonicRouteStrategy }],
   bootstrap: [AppComponent],
 })