Ajout d'un exemple pour les appels http.

src/app/network-call/network-call.module.ts

@@ -0,0 +1,21 @@
+import {NgModule} from '@angular/core';
+import {CommonModule} from '@angular/common';
+import {NetworkCallComponent} from "./network-call.component";
+import {CoreModule} from "../core/core.module";
+import {HttpClientModule} from "@angular/common/http";
+
+@NgModule({
+    declarations: [
+        NetworkCallComponent
+    ],
+    imports: [
+        CommonModule,
+        CoreModule,
+        HttpClientModule
+    ],
+    exports: [
+        NetworkCallComponent
+    ]
+})
+export class NetworkCallModule {
+}