added data service

app/shared/config.service.ts

@@ -0,0 +1,19 @@
+import { Injectable } from '@angular/core';
+
+@Injectable()
+export class ConfigService {
+    
+    _apiURI : string;
+
+    constructor() {
+        this._apiURI = 'http://localhost:5000/api/';
+     }
+
+     getApiURI() {
+         return this._apiURI;
+     }
+
+     getApiHost() {
+         return this._apiURI.replace('api/','');
+     }
+}