御用小本本

結論

public class CustomIdentityUserCreateDto
{
    [Required]
    [EmailAddress]
    [DynamicStringLength(typeof(IdentityUserConsts), nameof(IdentityUserConsts.MaxEmailLength))]
    public string Email { get; set; }
    
    [CanBeNull]
    public string[] RoleNames { get; set; }
}

public class CustomIdentityUserAppService : ApplicationService
{
    private IdentityUserManager UserManager { get; }
    private IOptions<IdentityOptions> IdentityOptions { get; }
    public CustomIdentityUserAppService(
        IdentityUserManager userManager,
        IOptions<IdentityOptions> identityOptions)
    {
        UserManager = userManager;
        IdentityOptions = identityOptions;
    }

    [Authorize(IdentityPermissions.Users.Create)]
    public async Task CreateUsersAsync(
        IEnumerable<CustomIdentityUserCreateDto> inputs)
    {
        foreach (var input in inputs)
        {
            await IdentityOptions.SetAsync();

            var user = new IdentityUser(
                GuidGenerator.Create(),
                input.Email,
                input.Email,
                CurrentTenant.Id
            );

            (await UserManager.CreateAsync(user)).CheckErrors();
            
            if (input.RoleNames != null)
            {
                (await UserManager.SetRolesAsync(user, input.RoleNames)).CheckErrors();
            }
            
            (await UserManager.UpdateAsync(user)).CheckErrors();
        }
        
        await CurrentUnitOfWork.SaveChangesAsync();
    }
}

以上是直接新增一個全新服務來放新的 API

下面是用擴充原本模塊的方式來新增新 API

public class MyIdentityUserCreateDto
{
    [Required]
    [EmailAddress]
    [DynamicStringLength(typeof(IdentityUserConsts), nameof(IdentityUserConsts.MaxEmailLength))]
    public string Email { get; set; }
    
    [CanBeNull]
    public string[] RoleNames { get; set; }
}

[Dependency(ReplaceServices = true)]
[ExposeServices(typeof(IIdentityUserAppService), typeof(IdentityUserAppService), typeof(MyIdentityUserAppService))]
public class MyIdentityUserAppService : IdentityUserAppService
{
    public MyIdentityUserAppService(
        IdentityUserManager userManager,
        IIdentityUserRepository userRepository,
        IIdentityRoleRepository roleRepository,
        IOptions<IdentityOptions> identityOptions) : base(userManager, userRepository, roleRepository,
        identityOptions)
    {
    }

    [Authorize(IdentityPermissions.Users.Create)]
    public async Task CreateUsersAsync(
        IEnumerable<MyIdentityUserCreateDto> inputs)
    {
        foreach (var input in inputs)
        {
            await IdentityOptions.SetAsync();

            var user = new IdentityUser(
                GuidGenerator.Create(),
                input.Email,
                input.Email,
                CurrentTenant.Id
            );

            (await UserManager.CreateAsync(user)).CheckErrors();
            
            if (input.RoleNames != null)
            {
                (await UserManager.SetRolesAsync(user, input.RoleNames)).CheckErrors();
            }
            
            (await UserManager.UpdateAsync(user)).CheckErrors();
        }
        
        await CurrentUnitOfWork.SaveChangesAsync();
    }
}

如果原本就有 override IdentityUserAppService 某些方法的打算

我覺得放一起比較好

BTW, Swagger 會同時顯示新舊 API

如果要隱藏可以參考另一篇

ABP.IO WEB應用程式框架 Swagger 隱藏指定 API | Jakeuj - 點部落 (dotblogs.com.tw)

備註：這邊簡單直接檢查原本的 User.Create 權限，所以記得先登入有該權限的帳號，否則直接到 Swagger 呼叫 API 會報錯