Changed JSON config in InertiaOptions

Author: mergehez

InertiaNetCore/Models/InertiaOptions.cs

@@ -4,28 +4,47 @@
 
 namespace InertiaNetCore.Models;
 
-public class InertiaOptions
+public record InertiaJsonOptions
 {
-    public string RootView { get; set; } = "~/Views/App.cshtml";
+    private InertiaJsonOptions()
+    {
+    }
 
-    public bool SsrEnabled { get; set; } = false;
-    public string SsrUrl { get; set; } = "http://127.0.0.1:13714/render";
-    
-    public Action<SessionOptions> ConfigureSession { get; set; } = _ => { };
-    
-    public bool EncryptHistory { get; set; }
-    
-    private static JsonSerializerOptions DefaultJsonSerializerOptions { get; } = new()
+    internal object Options { get; private init; } = new JsonSerializerOptions
     {
         PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
         ReferenceHandler = ReferenceHandler.IgnoreCycles,
         DictionaryKeyPolicy = JsonNamingPolicy.CamelCase
     };
 
-    public object JsonSerializerOptions { get; set; } = DefaultJsonSerializerOptions;
-    
-    public Func<object, InertiaOptions, string> JsonSerializeFn { get; set; } = (model, o) =>
+    private Func<object, object, string> SerializeFn { get; init; } = (model, options)
+        => JsonSerializer.Serialize(model, options as JsonSerializerOptions);
+
+    internal string Serialize(object model) => SerializeFn(model, Options);
+
+    public static InertiaJsonOptions Default { get; } = new();
+
+    public static InertiaJsonOptions Create<T>(T options, Func<object, T, string>? serialize = null) where T : class
     {
-        return JsonSerializer.Serialize(model, o.JsonSerializerOptions as JsonSerializerOptions);
-    };
+        serialize ??= (model, jo) => JsonSerializer.Serialize(model, jo as JsonSerializerOptions);
+        return new InertiaJsonOptions
+        {
+            Options = options,
+            SerializeFn = (model, jo) => serialize(model, (jo as T)!)
+        };
+    }
 }
+
+public class InertiaOptions
+{
+    public string RootView { get; set; } = "~/Views/App.cshtml";
+
+    public bool SsrEnabled { get; set; } = false;
+    public string SsrUrl { get; set; } = "http://127.0.0.1:13714/render";
+
+    public Action<SessionOptions> ConfigureSession { get; set; } = _ => { };
+
+    public bool EncryptHistory { get; set; }
+
+    public InertiaJsonOptions Json { get; set; } = InertiaJsonOptions.Default;
+}

InertiaNetCore/Response.cs

@@ -50,7 +50,7 @@ public async Task ExecuteResultAsync(ActionContext context)
             context.HttpContext.Response.Headers.Append("Vary", "Accept");
             context.HttpContext.Response.StatusCode = 200;
 
-            var jsonResult = new JsonResult(page, _options.JsonSerializerOptions);
+            var jsonResult = new JsonResult(page, _options.Json.Options);
             await jsonResult.ExecuteResultAsync(context);
         }
     }
@@ -92,8 +92,7 @@ private Dictionary<string, List<string>> GetDeferredProps(ActionContext context)
         }
 
         // apply json serialization options to dictionary keys before grouping them
-        var jsonOptions = _options.JsonSerializerOptions as JsonSerializerOptions;
-        tmp = JsonSerializer.Deserialize<Dictionary<string, string>>(JsonSerializer.Serialize(tmp, jsonOptions), jsonOptions);
+        tmp = JsonSerializer.Deserialize<Dictionary<string, string>>(_options.Json.Serialize(tmp));
 
         return tmp!
             .GroupBy(prop => prop.Value)
@@ -116,8 +115,7 @@ private List<string> GetMergeProps(ActionContext context)
         }
 
         // apply json serialization options to dictionary keys before grouping them
-        var jsonOptions = _options.JsonSerializerOptions as JsonSerializerOptions;
-        tmp = JsonSerializer.Deserialize<Dictionary<string, string>>(JsonSerializer.Serialize(tmp, jsonOptions), jsonOptions);
+        tmp = JsonSerializer.Deserialize<Dictionary<string, string>>(_options.Json.Serialize(tmp));
 
         return tmp!.Select(prop => prop.Key).ToList();
     }

InertiaNetCore/ResponseFactory.cs

@@ -56,7 +56,7 @@ public async Task<IHtmlContent> Html(dynamic model)
             }
         }
 
-        var data = options.Value.JsonSerializeFn(model, options.Value);
+        var data = options.Value.Json.Serialize(model);
         var encoded = WebUtility.HtmlEncode(data);
 
         return new HtmlString($"<div id=\"app\" data-page=\"{encoded}\"></div>");

InertiaNetCore/Ssr/SsrGateway.cs

@@ -9,7 +9,7 @@ internal class SsrGateway(IHttpClientFactory httpClientFactory, IOptions<Inertia
 {
     public async Task<SsrResponse?> Dispatch(dynamic model, string url)
     {
-        var json = options.Value.JsonSerializeFn(model, options.Value);
+        var json = options.Value.Json.Serialize(model);
 
         var content = new StringContent(json.ToString(), Encoding.UTF8, "application/json");
 

README.md

@@ -70,13 +70,12 @@ For example, you can change JSON serializer settings to use `Newtonsoft.Json` in
 ```csharp
 builder.Services.AddInertia(options =>
 {
-    options.JsonSerializerSettings = new JsonSerializerSettings
+    var options = new JsonSerializerSettings
     {
         ContractResolver = new CamelCasePropertyNamesContractResolver(),
         ReferenceLoopHandling = ReferenceLoopHandling.Ignore,
     };
-    
-    options.JsonSerializeFn = model => JsonConvert.SerializeObject(model, options.JsonSerializerSettings);
+    o.Json = InertiaJsonOptions.Create(options); // there is also an optional parameter to customize the "Serialize" method
 });
 ```