♻️ Add route and http context to ServerLoad func

src/BlazeKit.Static/BlazeKit.Static.csproj

@@ -8,13 +8,13 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.Components" Version="8.0.0" />
     <PackageReference Include="Microsoft.AspNetCore.Components.Web" Version="8.0.0" />
-    <PackageReference Include="Microsoft.AspNetCore.Html.Abstractions" Version="2.2.0" />
     <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.Logging" Version="8.0.0" />
     <PackageReference Include="Markdig" Version="0.33.0" />
     <PackageReference Include="YamlDotNet" Version="15.1.0" />
   </ItemGroup>
   <ItemGroup>
+    <FrameworkReference Include="Microsoft.AspNetCore.App" />
     <ProjectReference Include="..\BlazeKit.Hydration\BlazeKit.Hydration.csproj" />
   </ItemGroup>
 </Project>

src/BlazeKit.Web/BlazeKit.Web.csproj

@@ -13,6 +13,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.Components.Web" Version="8.0.0" />
+    <PackageReference Include="Microsoft.AspNetCore.Http.Abstractions" Version="2.2.0" />
     <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="8.0.0" />
   </ItemGroup>
 

src/BlazeKit.Web/Components/PageComponentBase.cs

@@ -1,12 +1,15 @@
 using BlazeKit.Hydration;
 using Microsoft.AspNetCore.Components;
 using Microsoft.AspNetCore.Components.Rendering;
+using Microsoft.AspNetCore.Http;
 
 namespace BlazeKit.Web.Components;
 public abstract class PageComponentBase<TResult> : IComponent, IPageLoad<TResult> where TResult : PageDataBase
 {
     [Inject] required public DataHydrationContext HydrationContext { get; init; }
-
+    [Inject] required public NavigationManager NavigationManager { get; init; }
+    [CascadingParameter] private HttpContext? Context { get; set; }
+
     private RenderFragment renderFragment;
     private readonly string dataKey;
     private RenderHandle renderHandle;
@@ -54,7 +57,8 @@ public async Task SetParametersAsync(ParameterView parameters)
 
         if(IsServer())
         {
-            var data = await this.ServerLoadAsync();
+            var route = new Uri(NavigationManager.Uri);
+            var data = await this.ServerLoadAsync(route, Context);
             if(data != null)
             {
                 this.data = data;
@@ -79,27 +83,12 @@ protected virtual void BuildRenderTree(RenderTreeBuilder builder)
         // but instead should invoke the _renderFragment field.
     }
 
-    protected virtual Task<TResult> ServerLoadAsync()
+    protected virtual Task<TResult> ServerLoadAsync(Uri route, HttpContext? context)
     {
         return Task.FromResult<TResult>(default(TResult));
     }
 
 
-    void Render(RenderTreeBuilder builder)
-    {
-        // decorate the ChildContent with a CascadingValue contianing the PageData
-        builder.OpenComponent<global::Microsoft.AspNetCore.Components.CascadingValue<TResult>>(0);
-        builder.AddComponentParameter(1, "Value", this.PageData);
-        builder.AddComponentParameter(1, "Name", "PageData");
-        builder.AddComponentParameter(2, "ChildContent", renderFragment);
-        builder.CloseComponent();
-    }
-
-    protected Task<T> LoadPageDataAsync<T>(T fallback)
-    {
-        return HydrationContext.GetAsync<T>(this.dataKey, fallback);
-    }
-
     private bool IsServer()
     {
         return !OperatingSystem.IsBrowser();

src/BlazeKit.Web/IPageLoad.cs

@@ -1,12 +1,8 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using Microsoft.AspNetCore.Http;
 
 namespace BlazeKit.Web;
 
 internal interface IPageLoad<TPageData>
 {
-    virtual Task<TPageData> ServerLoadAsync() => Task.FromResult(default(TPageData));
+    virtual Task<TPageData> ServerLoadAsync(Uri route, HttpContext? context) => Task.FromResult(default(TPageData));
 }

src/BlazeKit.Web/Utils/UriExtensions.cs

@@ -0,0 +1,29 @@
+namespace BlazeKit.Web.Utils
+{
+    public static class UriExtensions
+    {
+        public static string Param(this Uri uri, string name)
+        {
+            return Param(uri,name, () => throw new InvalidOperationException($"There is no query param with the name '{name}' in the route."));
+        }
+
+        public static string Param(this Uri uri, string name, string fallback)
+        {
+           return Param(uri,name, fallbackFunc: () => fallback);
+        }
+
+        private static string Param(Uri uri, string name, Func<string> fallbackFunc)
+        {
+            string result = string.Empty;
+            var queryDictionary = System.Web.HttpUtility.ParseQueryString(uri.Query);
+            if (queryDictionary.HasKeys() && queryDictionary.AllKeys.Contains(name))
+            {
+                result = queryDictionary[name];
+            } else
+            {
+                result = fallbackFunc();
+            }
+            return result;
+        }
+    }
+}

src/BlazeKit.Website/Routes/Docs/(Core-Concepts)/Loading-Data/Page.razor

@@ -1,18 +1,28 @@
 @using BlazeKit.Web.Components
 @using System.Diagnostics
+@using BlazeKit.Web.Utils
+@using Microsoft.AspNetCore.Http
+@using Microsoft.AspNetCore.Authentication
 @inherits PageComponentBase<SwapiPageData>
 @code {
 
     private const bool prerender = true;
 
-    protected override async Task<SwapiPageData> ServerLoadAsync()
+    protected override async Task<SwapiPageData> ServerLoadAsync(Uri route, HttpContext? context)
     {
+        Debug.WriteLine($"Page Load called for '{route}'.");
+        var people = route.Param("people", "1");
+
+        // Modify response headers. This only has effect when SSR is used.
+        // If the app is statically generated, the http context will be null and the code will not be executed.
+        context?.Response.Headers.Add("X-BLAZEKIT-DEBUG", "enabled");
+
         SwapiPageData result;
         using (var http = new HttpClient())
         {
             Debug.WriteLine($"Load data from SWAPI");
             http.BaseAddress = new Uri("https://swapi.dev/api/");
-            var response = await http.GetAsync("people/1");
+            var response = await http.GetAsync($"people/{people}");
             response.EnsureSuccessStatusCode();
             var json = System.Text.Json.JsonSerializer.Deserialize<Person>(await response.Content.ReadAsStringAsync());
             Debug.WriteLine($"Got response");

src/BlazeKit.Website/_Imports.razor

@@ -13,3 +13,4 @@
 @using Humanizer;
 @using BlazeKit.Website.Routes.Docs.Blazekit_CLI;
 @using BlazeKit.Hydration;
+@using BlazeKit.Web.Utils;