export class ProductService {
    public products: Product[];

    constructor(private http: HttpClient) { }

    init(): any {
        if (!this.products) {
            this.http.get<Product[]>("https://my-api.com/GetAllProducts").subscribe(products => {
                this.products = products;
            });
        }
    }
}

getProductFromProductId(productId: string) {
    return this.products.find(x => x.id === productId);
}

getProductFromProductId(productId: string) {
    if(!this.products) {
        setTimeout(() => {
            console.log("Products not loaded yet");
            getProductFromProductId(productId);
        }, 10);
    } else {
        return this.products.find(x => x.id === productId);
    }
}