Master vs ASP.NET Core

// backend/app/controllers/postsController.js (generated by master g scaffold)
export default class PostsController {
  static schemas = {                                  // [ApiController] model binding + validation
    create: { body: { title: { type: 'string', required: true } } },
  };
  static authorize = { create: true };                // [Authorize] on one action

  constructor(requestObject) { this.requestObject = requestObject; }

  async index() {                                     // this.db = scoped AppContext (DbContext)
    this.ok({ data: await this.db.Post.toList() });
  }

  async show(obj) {                                   // route: /posts/:id(int)
    const post = await this.db.Post.find(obj.params.id);
    if (!post) return this.notFound('Post not found');
    this.ok({ data: post });
  }

  async create() {                                    // invalid body -> 400 ValidationProblemDetails
    const post = this.db.Post.new();
    Object.assign(post, this.model);
    await this.db.saveChanges();
    this.created(`/posts/${post.id}`, { data: post });
  }
}

// backend/server.js (excerpt)
master.addScoped('db', AppContext);
master.useHealthChecks({ checks: { database: { check: () => master.useScope((s) => s.db.canConnect()), tags: ['ready'] } } });
master.useOpenApi({ ui: '/docs' });
master.auth.addJwtBearer('bearer', { secret: config.get('Auth:JwtSecret') });

// Controllers/PostsController.cs
[ApiController]
[Route("posts")]
public class PostsController : ControllerBase
{
    private readonly AppDbContext _db;                // scoped DbContext
    public PostsController(AppDbContext db) => _db = db;

    [HttpGet]
    public async Task<IActionResult> Index() =>
        Ok(new { data = await _db.Posts.ToListAsync() });

    [HttpGet("{id:int}")]
    public async Task<IActionResult> Show(int id)
    {
        var post = await _db.Posts.FindAsync(id);
        return post is null ? NotFound("Post not found") : Ok(new { data = post });
    }

    [Authorize]
    [HttpPost]                                        // invalid body -> 400 ValidationProblemDetails
    public async Task<IActionResult> Create(PostDto dto)
    {
        var post = new Post { Title = dto.Title };
        _db.Posts.Add(post);
        await _db.SaveChangesAsync();
        return Created($"/posts/{post.Id}", new { data = post });
    }
}

// Program.cs (excerpt)
builder.Services.AddDbContext<AppDbContext>();
builder.Services.AddHealthChecks().AddDbContextCheck<AppDbContext>(tags: new[] { "ready" });
builder.Services.AddOpenApi();
builder.Services.AddAuthentication().AddJwtBearer();