Performance Optimization in Web Applications: A Comprehensive Analysis of Server-Side Rendering in Angular

@Component({ selector: 'app-product-catalog', template: ` <ng-container *ngIf="loadingState === 'loading'"> <div class="loading-indicator">Data Loading</div> </ng-container> <div *ngIf="loadingState === 'complete'" class="product-container"> <div *ngFor="let product of productCollection" class="product-entry"> <h3>{{ product.name }}</h3> <p>{{ product.description }}</p> <span>{{ product.price | currency }}</span> </div> </div> ` }) export class ProductCatalogComponent implements OnInit { productCollection: Product[] = []; loadingState: 'initial' | 'loading' | 'complete' = 'initial'; constructor(private productService: ProductService) {} ngOnInit(): void { this.loadingState = 'loading'; this.productService.retrieveProducts().subscribe({ next: (products) => { this.productCollection = products; this.loadingState = 'complete'; }, error: () => { this.loadingState = 'initial'; } }); } } 

@Component({ selector: 'app-product-catalog', template: ` <div class="product-container"> <div *ngFor="let product of productCollection" class="product-entry"> <h3>{{ product.name }}</h3> <p>{{ product.description }}</p> <span>{{ product.price | currency }}</span> </div> </div> ` }) export class ProductCatalogComponent implements OnInit { productCollection: Product[] = []; constructor( private productService: ProductService, @Inject(PLATFORM_ID) private platformId: Object ) {} ngOnInit(): void { // Platform-aware rendering strategy if (isPlatformServer(this.platformId)) { // Synchronous server-side data preparation this.productCollection = this.productService.retrieveProductsSync(); } else { // Asynchronous client-side hydration this.productService.retrieveProducts().subscribe( products => this.productCollection = products ); } } } 

[ApiController] [Route("api/[controller]")] public class ProductController : ControllerBase { private readonly IProductService _productService; private readonly IMemoryCache _cache; private readonly ILogger<ProductController> _logger; public ProductController( IProductService productService, IMemoryCache cache, ILogger<ProductController> logger) { _productService = productService; _cache = cache; _logger = logger; } [HttpGet] [ProducesResponseType(typeof(List<Product>), StatusCodes.Status200OK)] [ProducesResponseType(StatusCodes.Status500InternalServerError)] public async Task<IActionResult> RetrieveProducts( [FromQuery] int pageIndex = 1, [FromQuery] int pageSize = 10) { try { var cacheKey = $"products_page_{pageIndex}_size_{pageSize}"; if (!_cache.TryGetValue(cacheKey, out List<Product> productCollection)) { productCollection = await _productService.FetchProductsAsync( pageIndex, pageSize ); _cache.Set(cacheKey, productCollection, new MemoryCacheEntryOptions() .SetSlidingExpiration(TimeSpan.FromMinutes(5)) ); } return Ok(productCollection); } catch (Exception ex) { _logger.LogError(ex, "Product retrieval process encountered an error"); return StatusCode( StatusCodes.Status500InternalServerError, "An unexpected error occurred during product retrieval" ); } } }