I have a function that when the component is loaded, it returns specific data of a certain parameter (ex: /app/items) and displays them in an information balloon, but if I access a child route (ex: /app/items/ create) or (ex: /app/items/1/view) I need to do a validation to see if there is informational data in this route to display, but if not, I need to display the information from the previous parameter (ex: /app/items) . I managed to create this function below that fulfills this, but with a request inside another, which I believe is not the most appropriate. So I'm trying to refactor so that only one request is made validating these parameters. It should also be considered that if the route has numbers, it needs to be filtered and returned an array with just the strings before doing the join('/'), as you can see there in the constructor. I'm new to the area, so I'm trying to find some background to refactor this function.

public information: InformationList | any
public isLoading:boolean = true

error: any;
showError: boolean = false

public currentPageUrl = null;
public output = null
other: any;

constructor(
    public screenInfoService: ScreenInfoService, 
    public loaderService: LoaderService,
    public router: Router
) {
    this.currentPageUrl = this.router.url.split("/").filter((item: any) => {
        return isNaN(item)
    })
}

load() {
    this.output = this.currentPageUrl.join("/");
    let params = new HttpParams();
    params = params.set('orderBy', 'id');
    params = params.set('search', `path:${this.output}`); 
    params = params.set('searchFields', `path:ilike`);
    params = params.set('searchJoin', 'and');
    this.screenInfoService.getAll(params).subscribe(
        success => {
            if (success.length === 0) {
                let output2 = null
                output2 = this.currentPageUrl.slice(0,2).join("/");
                params = params.set('orderBy', 'id');
                params = params.set('search', `path:${output2}`); 
                params = params.set('searchFields', `path:ilike`);
                params = params.set('searchJoin', 'and');
                this.screenInfoService.getAll(params).subscribe(
                    success => {
                        this.information = success
                    }, error => {
                        this.error = 'MSG.T224';
                        this.showError = true;
                    }
                )
            } else {
                this.information = success
            }
        }, error => {
            this.error = 'MSG.T224';
            this.showError = true;
        });
}



ngOnInit(): void {
this.load()

}