MetricsService provided in root

services/metrics.service.ts

@@ -6,7 +6,9 @@ import {Metrics} from '../utils/entities/metrics';
 import{EnvProperties} from '../utils/properties/env-properties';
 import {map} from "rxjs/operators";
 
-@Injectable()
+@Injectable({
+    providedIn: 'root'
+})
 export class MetricsService {
     metrics: Metrics;