add admin interface, angular migration

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

@@ -0,0 +1,27 @@
+import { Injectable } from '@angular/core';
+import { HttpClient, HttpParams } from '@angular/common/http';
+import { environment } from '../../../environments/environment';
+
+@Injectable({
+    providedIn: 'root',
+})
+export class ServiceManagementService {
+
+    constructor(private http: HttpClient) {
+    }
+
+    getAllServices(page: number = 0, size: number = 10) {
+        let params = new HttpParams()
+            .set('page', page.toString())
+            .set('size', size.toString());
+        return this.http.get(environment.apiUrl + "/services/manage", { params });
+    }
+
+    createOrUpdateService(service: any) {
+        return this.http.post(environment.apiUrl + "/services/manage", service);
+    }
+
+    deleteService(service: any) {
+        return this.http.delete(environment.apiUrl + "/services/manage", { body: service });
+    }
+}