Improve Inertia shared data integration

Author: kapi2289

InertiaCore/Inertia.cs

@@ -19,4 +19,8 @@ public static class Inertia
     public static string? GetVersion() => _factory.GetVersion();
 
     public static LocationResult Location(string url) => _factory.Location(url);
+
+    public static void Share(string key, object? value) => _factory.Share(key, value);
+
+    public static void Share(IDictionary<string, object?> data) => _factory.Share(data);
 }

InertiaCore/InertiaSharedData.cs

@@ -1,10 +1,10 @@
 namespace InertiaCore;
 
-public class InertiaSharedData
+internal class InertiaSharedData
 {
-    public IDictionary<string, object?>? Data { get; set; }
+    private IDictionary<string, object?>? Data { get; set; }
 
-    public Dictionary<string, object?> Merge(IDictionary<string, object?> with)
+    public Dictionary<string, object?> GetMerged(IDictionary<string, object?> with)
     {
         var result = new Dictionary<string, object?>();
 
@@ -16,4 +16,12 @@ public class InertiaSharedData
 
         return result;
     }
+
+    public void Merge(IDictionary<string, object?> with) => Data = GetMerged(with);
+
+    public void Set(string key, object? value)
+    {
+        Data ??= new Dictionary<string, object?>();
+        Data[key] = value;
+    }
 }

InertiaCore/Response.cs

@@ -50,7 +50,7 @@ public async Task ExecuteResultAsync(ActionContext context)
 
         var shared = context.HttpContext.Features.Get<InertiaSharedData>();
         if (shared != null)
-            page.Props = shared.Merge(page.Props);
+            page.Props = shared.GetMerged(page.Props);
 
         var errors = GetErrors();
         if (errors != null)

InertiaCore/ResponseFactory.cs

@@ -2,6 +2,7 @@
 using System.Text.Json.Serialization;
 using System.Web;
 using Microsoft.AspNetCore.Html;
+using Microsoft.AspNetCore.Http;
 
 namespace InertiaCore;
 
@@ -13,14 +14,19 @@ internal interface IResponseFactory
     public void Version(object? version);
     public string? GetVersion();
     public LocationResult Location(string url);
+    public void Share(string key, object? value);
+    public void Share(IDictionary<string, object?> data);
 }
 
 internal class ResponseFactory : IResponseFactory
 {
-    private string _rootView = "~/Views/App.cshtml";
+    private readonly IHttpContextAccessor _contextAccessor;
 
+    private string _rootView = "~/Views/App.cshtml";
     private object? _version;
 
+    public ResponseFactory(IHttpContextAccessor contextAccessor) => _contextAccessor = contextAccessor;
+
     public Response Render(string component, object? props = null)
     {
         props ??= new { };
@@ -54,4 +60,26 @@ public IHtmlContent Html(dynamic model)
     };
 
     public LocationResult Location(string url) => new(url);
+
+    public void Share(string key, object? value)
+    {
+        var context = _contextAccessor.HttpContext!;
+
+        var sharedData = context.Features.Get<InertiaSharedData>();
+        sharedData ??= new InertiaSharedData();
+        sharedData.Set(key, value);
+
+        context.Features.Set(sharedData);
+    }
+
+    public void Share(IDictionary<string, object?> data)
+    {
+        var context = _contextAccessor.HttpContext!;
+
+        var sharedData = context.Features.Get<InertiaSharedData>();
+        sharedData ??= new InertiaSharedData();
+        sharedData.Merge(data);
+
+        context.Features.Set(sharedData);
+    }
 }

README.md

@@ -126,13 +126,19 @@ app.Use(async (context, next) =>
 {
     var userId = context.Session.GetInt32("userId");
 
-    var sharedData = new InertiaSharedData
+    Inertia.Share("auth", new
     {
-        Data = new Dictionary<string, object?>
+        UserId = userId
+    });
+    
+    // Or
+    
+    Inertia.Share(new Dictionary<string, object?>
+    {
+        ["auth"] => new
         {
-            ["userId"] = userId
+            UserId = userId
         }
-    };
-    context.Features.Set(sharedData);
+    });
 });
 ```