eQuantic.Core.Api.Error 1.6.4

eQuantic.Core.Api.Crud Library

The eQuantic Core API CRUD provides all the implementation needed to publish CRUD APIs.

To install eQuantic.Core.Api.Crud, run the following command in the Package Manager Console

Install-Package eQuantic.Core.Api.Crud

Example of implementation

The data entities

[Table("orders")]
public class OrderData : EntityDataBase
{
    [Key]
    public string Id { get; set; } = string.Empty;
    public DateTime Date { get; set; }
    
    public virtual ICollection<OrderItemData> Items { get; set; } = new HashSet<OrderItemData>();
}

[Table("orderItems")]
public class OrderItemData : EntityDataBase, IWithReferenceId<OrderItemData, int>
{
    [Key]
    public int Id { get; set; }
    public int OrderId { get; set; }
    
    [ForeignKey(nameof(OrderId))]
    public virtual OrderData? Order { get; set; }
    
    [Required]
    [MaxLength(200)]
    public string Name { get; set; } = string.Empty;
}

The models

public class Order
{
    public string Id { get; set; } = string.Empty;
    public DateTime Date { get; set; }
}

public class OrderItem
{
    public int Id { get; set; }
    public int OrderId { get; set; }
    public string Name { get; set; } = string.Empty;
}

The request models

public class OrderRequest
{
    public DateTime? Date { get; set; }
}

public class OrderItemRequest
{
    public string? Name { get; set; }
}

The mappers

public class OrderMapper : IMapper<OrderData, Order>, IMapper<OrderRequest, OrderData>
{
    public Order? Map(OrderData? source)
    {
        return Map(source, new Order());
    }

    public Order? Map(OrderData? source, Order? destination)
    {
        if (source == null)
        {
            return null;
        }

        if (destination == null)
        {
            return Map(source);
        }

        destination.Id = source.Id;
        destination.Date = source.Date;

        return destination;
    }

    public OrderData? Map(OrderRequest? source)
    {
        return Map(source, new OrderData());
    }

    public OrderData? Map(OrderRequest? source, OrderData? destination)
    {
        if (source == null)
        {
            return null;
        }

        if (destination == null)
        {
            return Map(source);
        }
        
        destination.Date = source.Date ?? DateTime.UtcNow;

        return destination;
    }
}

The services

public interface IOrderService : ICrudService<Order, OrderRequest>
{
    
}

[MapCrudEndpoints]
public class OrderService : CrudServiceBase<Order, OrderRequest, OrderData, UserData>, IOrderService
{
    public OrderService(IQueryableUnitOfWork unitOfWork, IMapperFactory mapperFactory) : base(unitOfWork, mapperFactory)
    {
    }
}

The Program.cs

var builder = WebApplication.CreateBuilder(args);
var assembly = typeof(Program).Assembly;

builder.Services.AddDbContext<ExampleDbContext>(opt =>
    opt.UseInMemoryDatabase("ExampleDb"));
        
builder.Services.AddQueryableRepositories<ExampleUnitOfWork>(opt =>
{
    opt.FromAssembly(assembly)
        .AddLifetime(ServiceLifetime.Scoped);
});

builder.Services
    .AddMappers(opt => opt.FromAssembly(assembly))
    .AddTransient<IExampleService, ExampleService>()
    .AddControllers()
    .AddJsonOptions(options =>
    {
        options.JsonSerializerOptions.Converters.Add(new JsonStringEnumConverter());
        options.JsonSerializerOptions.PropertyNamingPolicy = JsonNamingPolicy.CamelCase;
    })
    .AddFilterModelBinder()
    .AddSortModelBinder();

builder.Services
    .AddEndpointsApiExplorer()
    .AddApiDocumentation(opt => opt.WithTitle("Example API"));

var app = builder.Build();

if (app.Environment.IsDevelopment())
{
    app.UseApiDocumentation();
}

app.UseHttpsRedirection();
app.UseRouting();
app.MapControllers();
app.MapCrud<Order, OrderRequest, IOrderService>();

app.Run();

or

...
app.MapAllCrud(opt => opt.FromAssembly(assembly));
app.Run();