Acme.HeroShop - HomeController.cs - 2

HomeController.cs

public class HomeController : Controller
{
	private readonly IHostingEnvironment _hostingEnvironment;
	public HomeController(IHostingEnvironment hostingEnvironment)
	{
		_hostingEnvironment = hostingEnvironment;
	}

	[HttpGet]
	public async Task<IActionResult> Index()
	{
		// for production, enable server side renderring
		var applicationBasePath = _hostingEnvironment.ContentRootPath;
		var requestFeature = Request.HttpContext.Features.Get<IHttpRequestFeature>();
		var unencodedPathAndQuery = requestFeature.RawTarget;
		var unencodedAbsoluteUrl = $"{Request.Scheme}://{Request.Host}{unencodedPathAndQuery}";

		// ** TransferData concept **
		// Here we can pass any Custom Data we want !

		TransferData transferData = new TransferData
		{
			// By default we're passing down Cookies, Headers, Host from the Request object here
			request = AbstractHttpContextRequestInfo(Request)
			// ex:
			// transferData.thisCameFromDotNET = "Hi Angular it's asp.net :)";
			// Add more customData here, add it to the TransferData class
		};
		var nodeService = Request.HttpContext.RequestServices.GetRequiredService<INodeServices>(); // nodeServices
																								   //Prerender now needs CancellationToken
		System.Threading.CancellationTokenSource cancelSource = new System.Threading.CancellationTokenSource();
		System.Threading.CancellationToken cancelToken = cancelSource.Token;

		// Prerender / Serialize application (with Universal)
		var prerenderResult = await Prerenderer.RenderToString(
			"/",
			nodeService,
			//Request.HttpContext.RequestServices.GetRequiredService<INodeServices>(), // nodeServices
			cancelToken,
			new JavaScriptModuleExport(applicationBasePath + "/HeroApp/dist-server/main.bundle"),
			unencodedAbsoluteUrl,
			unencodedPathAndQuery,
			transferData, // Our simplified Request object & any other CustommData you want to send!
			30000,
			Request.PathBase.ToString()
		);

		ViewData["SpaHtml"] = prerenderResult.Html; // our <app> from Angular
		ViewData["Title"] = prerenderResult.Globals["title"]; // set our <title> from Angular
		ViewData["Styles"] = prerenderResult.Globals["styles"]; // put styles in the correct place
		ViewData["Meta"] = prerenderResult.Globals["meta"]; // set our <meta> SEO tags
		ViewData["Links"] = prerenderResult.Globals["links"]; // set our <link rel="canonical"> etc SEO tags
		ViewData["TransferData"] = prerenderResult.Globals["transferData"]; // our transfer data set to window.TRANSFER_CACHE = {};

		return View();
	}

	private SimplifiedRequest AbstractHttpContextRequestInfo(HttpRequest request)
	{
		return new SimplifiedRequest
		{
			cookies = request.Cookies,
			headers = request.Headers,
			host = request.Host
		};
	}
}