add shared serialization config

src/WebApiBootstrap.Api/Program.cs

@@ -1,9 +1,14 @@
+using WebApiBootstrap.Contracts.Serialization;
+
 WebApplicationBuilder builder = WebApplication.CreateBuilder(args);
 
 // Add services to the container.
 // Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
 builder.Services.AddEndpointsApiExplorer();
 builder.Services.AddSwaggerGen();
+builder.Services.ConfigureHttpJsonOptions(
+    o => MyApiJsonSerializerOptions.Configure(o.SerializerOptions));
+
 WebApplication app = builder.Build();
 app.UseSwagger();
 

src/WebApiBootstrap.Client/MyApiClient.cs

@@ -3,6 +3,9 @@ using System.Net.Http;
 
 using Refit;
 
+using WebApiBootstrap.Contracts;
+using WebApiBootstrap.Contracts.Serialization;
+
 namespace WebApiBootstrap.Client;
 
 public class MyApiClient : IMyApiClient, IDisposable
@@ -12,7 +15,14 @@ public class MyApiClient : IMyApiClient, IDisposable
     public MyApiClient(HttpClient httpClient)
     {
         _httpClient = httpClient;
-        GetWeatherForecast = RestService.For<IGetWeatherForecastEndpoint>(_httpClient);
+        var refitSettings = new RefitSettings
+        {
+            ContentSerializer
+                = new SystemTextJsonContentSerializer(MyApiJsonSerializerOptions.Create())
+        };
+
+        GetWeatherForecast
+            = RestService.For<IGetWeatherForecastEndpoint>(_httpClient, refitSettings);
     }
 
     public IGetWeatherForecastEndpoint GetWeatherForecast { get; }

src/WebApiBootstrap.Contracts/Serialization/MyApiJsonSerializerOptions.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Text.Json;
+using System.Text.Json.Serialization.Metadata;
+
+namespace WebApiBootstrap.Contracts.Serialization;
+
+public static class MyApiJsonSerializerOptions
+{
+    private static readonly Lazy<JsonSerializerOptions> Instance = new(
+        () =>
+        {
+            var options = new JsonSerializerOptions(JsonSerializerDefaults.Web);
+            Configure(options);
+            options.TypeInfoResolver = new DefaultJsonTypeInfoResolver();
+            options.MakeReadOnly();
+            return options;
+        });
+
+    public static JsonSerializerOptions Create() => new(Instance.Value);
+
+    public static void Configure(JsonSerializerOptions options)
+    {
+        options.WriteIndented = true;
+    }
+}

src/WebApiBootstrap.Contracts/WebApiBootstrap.Contracts.csproj

@@ -14,6 +14,7 @@
 
     <ItemGroup>
         <PackageReference Include="Portable.System.DateTimeOnly" Version="8.0.0"/>
+        <PackageReference Include="System.Text.Json" Version="8.0.2"/>
     </ItemGroup>
 
 </Project>