using System.Text.Json.Serialization; using MyFirstAotWebApi; var builder = WebApplication.CreateSlimBuilder(args); builder.Logging.AddConsole(); builder.Services.ConfigureHttpJsonOptions(options => { options.SerializerOptions.TypeInfoResolverChain.Insert(0, AppJsonSerializerContext.Default); }); var app = builder.Build(); var sampleTodos = TodoGenerator.GenerateTodos().ToArray(); var todosApi = app.MapGroup("/todos"); todosApi.MapGet("/", () => sampleTodos); todosApi.MapGet("/{id}", (int id) => sampleTodos.FirstOrDefault(a => a.Id == id) is { } todo ? Results.Ok(todo) : Results.NotFound()); app.Run(); [JsonSerializable(typeof(Todo[]))] internal partial class AppJsonSerializerContext : JsonSerializerContext { }