.Net Core : Extend Identity User and add custom field in AspNetUsers table

.Net Core : Extend Identity User and add custom field in AspNetUsers table

Create new class and inherit with IdentityUser, here I created "ApplicationUser" and added 

namespace DotNetCodeDemo.Repository.Models
{
    public class ApplicationUser : IdentityUser
    {
        public string  City { get; set; }        
        public string MobileNumber { get; set; }
        public DateTime BirthDate { get; set; }
        public DateTime JoinDate { get; set; }
    }
}

Update dbContext class

namespace DotNetCodeDemo.Repository
{
    public class AppDbContext : IdentityDbContext<ApplicationUser>
    {
        public AppDbContext(DbContextOptions<AppDbContext> options) : base(options)
        {

        }

        public DbSet<Employee> Employees { get; set; }
        public DbSet<Department> Departments { get; set; }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            base.OnModelCreating(modelBuilder);
            modelBuilder.Seed();
        }
    }
}

Update ConfigureServices method in startup class

public void ConfigureServices(IServiceCollection services)
{
 services.AddDbContextPool<AppDbContext>(options => options.UseSqlServer(Configuration.GetConnectionString("DotNetCoreDB")));

 services.AddIdentity<ApplicationUser, IdentityRole>(options =>
 {
  options.Password.RequiredLength = 10; // if you want to set your own password strength rule
  options.Password.RequiredUniqueChars = 2;
 }).AddEntityFrameworkStores<AppDbContext>(); 

 services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
 services.AddScoped<IEmployeeRepository, EmployeeRepository>();
}

Update IdentityUser with ApplicationUser in your controller

namespace DotNetCodeDemo.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    public class AccountController : Controller
    {
        private readonly UserManager<ApplicationUser> userManager;
        private readonly SignInManager<ApplicationUser> signInManager;
        
        public AccountController(UserManager<ApplicationUser> userManager, SignInManager<ApplicationUser> signInManager)
        {
             
            this.userManager = userManager;
            this.signInManager = signInManager;
        }
         
        [HttpPost]
        [Route("Register")]
        public async Task<JsonResult> Post(VMRegister vmRegister)
        {
            IdentityResult result = new IdentityResult();
            string errorMessage = "success";

            if(ModelState.IsValid)
            {
                var user = new ApplicationUser
                {
                    UserName = vmRegister.Email,
                    Email = vmRegister.Email,
                    City = vmRegister.City
                };

                result = await userManager.CreateAsync(user, vmRegister.Password);

                if(result.Succeeded)
                {
                    //to Signin user
                    //signInManager.SignInAsync(user, isPersistent: false).Start();
                }
                else
                {
                    if(result.Errors.Count() > 0)
                    {
                        errorMessage = "";
                        foreach (var error in result.Errors)
                        {
                            errorMessage += error.Description;
                        }
                    }
                }
            }            

            return Json(new { id = "1", message = errorMessage });
        } 
    }
}

Hope this will help you and save your time.

Enjoy !!!

:)