#define RGG4F //   RGG4 RGG4F
#if NEVER
#elif RGG4
// <snippet_1>
using System.Text.Json.Serialization;

var builder = WebApplication.CreateSlimBuilder(args);

builder.Services.ConfigureHttpJsonOptions(options =>
{
    options.SerializerOptions.TypeInfoResolverChain.Insert(0,
                                       AppJsonSerializerContext.Default);
});

var app = builder.Build();

app.MapGet("/v1/todos", () => new { Id = 1, Task = "Write tests" });

app.Run();

record Todo(int Id, string Task);
[JsonSerializable(typeof(Todo[]))]
internal partial class AppJsonSerializerContext : JsonSerializerContext
{

}
// </snippet_1>
#elif RGG4F
// <snippet_1f>
using System.Text.Json.Serialization;

var builder = WebApplication.CreateSlimBuilder(args);

builder.Services.ConfigureHttpJsonOptions(options =>
{
    options.SerializerOptions.TypeInfoResolverChain.Insert(0,
                                 AppJsonSerializerContext.Default);
});

var app = builder.Build();

app.MapGet("/v1/todos", () => new Todo(1, "Write tests fix"));

app.Run();

record Todo(int Id, string Task);
[JsonSerializable(typeof(Todo[]))]
internal partial class AppJsonSerializerContext : JsonSerializerContext
{

}
// </snippet_1f>
#endif