Fix create event

src/app/services/notifications.service.ts

@@ -14,7 +14,7 @@ import { ToastService } from '../services/toast.service';
 import { Optional } from '@angular/core';
 import { JsonStore } from './jsonStore.service';
 import { synchro } from './socket/synchro.service';
-
+import { v4 as uuidv4 } from 'uuid'
 @Injectable({
   providedIn: 'root'
 })
@@ -27,10 +27,11 @@ export class NotificationsService {
   callbacks: {
     type: string,
     funx: Function
+    id: string
   }[] = []
 
   constructor(
-     private http: HttpClient,
+    private http: HttpClient,
     private storageService: StorageService,
     private modalController: ModalController,
     public modalCtrl: AlertController,
@@ -51,15 +52,28 @@ export class NotificationsService {
 
     }
 
-    registerCallback(type: string, funx: Function, object: any = {} ) {
+  registerCallback(type: string, funx: Function, object: any = {} ) {
 
-      this.callbacks.push({type, funx})
-      if(!object.hasOwnProperty('desktop') && object['desktop'] != false) {
-        synchro.registerCallback('Notification',funx, type)
-      }
-      
+    const id = uuidv4()
+    this.callbacks.push({type, funx, id})
+    if(!object.hasOwnProperty('desktop') && object['desktop'] != false) {
+      synchro.registerCallback('Notification',funx, type)
     }
 
+    return id;
+  }
+
+  deleteCallback(id) {
+    this.callbacks.forEach((e, index)=>{
+      if(e.id == id) {
+        if (index > -1) {
+          this.callbacks.splice(index, 1);
+        }
+      }
+    })
+
+  }
+
   getTokenByUserIdAndId(user, userID) {
     const geturl = environment.apiURL + 'notifications/user/' + userID;