CRUD With Minimal Api

app.MapGet("products", async Task<Ok<List<Product>>> 
  (IProductsRepository repo) => {
    var result = await repo.GetAllProducts();
    return TypedResults.Ok(result);
});

app.MapGet("products/{id}", async Task<Results<NotFound, Ok<Product>>> 
  (int id, IProductsRepository repo) => {
    var result = await repo.GetProductById(id);
    if (result == null) {
        return TypedResults.NotFound();
    }
    return TypedResults.Ok(result);
});

app.MapDelete("products/{id}", async Task<Results<NotFound, Ok<Product>>> 
    (int id, IProductsRepository repo) => {
        var result = await repo.GetProductById(id);
        if (result == null) {
            return TypedResults.NotFound();
        }
        await repo.DeleteProduct(id);
        return TypedResults.Ok(result);
});

app.MapPut("products/{id}", async Task<Results<NotFound, Ok<Product>>> 
    (int id, Product product, IProductsRepository repo) => {
        var result = await repo.GetProductById(id);
        if (result == null) {
            return TypedResults.NotFound();
        }
        var productAfterUpdate = await repo.UpdateProduct(id, product);
        return TypedResults.Ok(productAfterUpdate);
});

app.MapPost("products/", async Task<Created<Product>> 
  (Product product, IProductsRepository repo) => {
    Product addProduct = await repo.AddNewProduct(product);
    return TypedResults.Created($"api/products/{addProduct.id}", addProduct);
});

app.MapGet("time", () => DateTime.Now).WithTags("Time");
app.MapGet("time/{id}", (int id) => $"The value id {id}").WithTags("Test");
app.MapGet("time/{name}/{id}", (string name, int id, string? description) => 
    $"The value {id} {description} {name}").WithTags("Test");

app.MapGet("products", async Task<Ok<List<Product>>> (IProductsRepository repo) => {
    var result = await repo.GetAllProducts();
    return TypedResults.Ok(result);
}).WithTags("Products");

var productGroup = app.MapGroup("products").WithTags("Products");

productGroup.MapGet("", async Task<Ok<List<Product>>> (IProductsRepository repo) => {
    var result = await repo.GetAllProducts();
    return TypedResults.Ok(result);
});