add admin interface, angular migration

src/app/services/admin/shortenedurl.management.service.ts

@@ -0,0 +1,34 @@
+import { Injectable } from '@angular/core';
+import { HttpClient, HttpParams } from '@angular/common/http';
+import { environment } from '../../../environments/environment';
+
+@Injectable({
+    providedIn: 'root',
+})
+export class ShortenedUrlManagementService {
+
+    constructor(private http: HttpClient) {
+    }
+
+    getShortenedUrls(page: number = 0, size: number = 10, search: string = '') {
+        let params = new HttpParams()
+            .set('page', page.toString())
+            .set('size', size.toString())
+            .set('search', search);
+        return this.http.get(environment.apiUrl + "/url/shortener/manage", { params });
+    }
+
+    createOrUpdateShortenedUrl(shortenedUrl: any) {
+        return this.http.post(environment.apiUrl + "/url/shortener/manage", shortenedUrl);
+    }
+
+    deleteShortenedUrl(code: string, quota: boolean = false) {
+        let params = new HttpParams().set('quota', quota.toString());
+        return this.http.delete(environment.apiUrl + "/url/shortener/manage/" + code, { params });
+    }
+
+    deleteAll(owner: number, quota: boolean = false) {
+        let params = new HttpParams().set('quota', quota.toString());
+        return this.http.delete(environment.apiUrl + "/url/shortener/manage/all/" + owner, { params });
+    }
+}