Http Requests And Pages

is it possible and how to execute all http requests that pages needs on login so user doesnt wait on navigation but just wait on login.


/* items.ts */
items: any;

ionViewWillEnter() {
    if(this.items === undefined) {
        this.itemsService.getItems().subscribe((response: Response) => {
        this.items = response['items'];

i need this to execute on login so this.items would be already set when navigating and no spinner would be needed.


Do the load of your data in the ItemsService creation, store the data in the itemsService object, and when calling to the getItems(), return the locally stored data.