Update folder structure

src/app/service/iconservice.ts

@@ -0,0 +1,22 @@
+import { Injectable } from '@angular/core';
+import { HttpClient, HttpHeaders } from '@angular/common/http';
+import {map} from 'rxjs/operators';
+
+@Injectable()
+export class IconService {
+
+    constructor(private http: HttpClient) { }
+
+    icons: any[];
+
+    selectedIcon: any;
+
+    apiUrl = 'assets/demo/data/icons.json';
+
+    getIcons() {
+        return this.http.get(this.apiUrl).pipe(map((response: any) => {
+            this.icons = response.icons;
+            return this.icons;
+        }));
+    }
+}