How to Seed Users and Roles with Code First Migration using Identity ASP.NET Core

Question

I have created a new clean asp.net 5 project (rc1-final). Using Identity Authentication I just have the ApplicationDbContext.cs with the following code:

public class ApplicationDbContext : IdentityDbContext<ApplicationUser> {     protected override void OnModelCreating(ModelBuilder builder)     {         // On event model creating         base.OnModelCreating(builder);     } } 

Please note ApplicationDbContext use IdentityDbContext and not DbContext.

There is any IdentityConfig.cs. Where i need to put the classic protected override void Seed to create role and user if it does not exist?

Answer 1

My way of doing this is to create a class in models namespace.

public class SampleData {     public static void Initialize(IServiceProvider serviceProvider)     {         var context = serviceProvider.GetService<ApplicationDbContext>();          string[] roles = new string[] { "Owner", "Administrator", "Manager", "Editor", "Buyer", "Business", "Seller", "Subscriber" };          foreach (string role in roles)         {             var roleStore = new RoleStore<IdentityRole>(context);              if (!context.Roles.Any(r => r.Name == role))             {                 roleStore.CreateAsync(new IdentityRole(role));             }         }           var user = new ApplicationUser         {             FirstName = "XXXX",             LastName = "XXXX",             Email = "[email protected]",             NormalizedEmail = "[email protected]",             UserName = "Owner",             NormalizedUserName = "OWNER",             PhoneNumber = "+111111111111",             EmailConfirmed = true,             PhoneNumberConfirmed = true,             SecurityStamp = Guid.NewGuid().ToString("D")         };           if (!context.Users.Any(u => u.UserName == user.UserName))         {             var password = new PasswordHasher<ApplicationUser>();             var hashed = password.HashPassword(user,"secret");             user.PasswordHash = hashed;              var userStore = new UserStore<ApplicationUser>(context);             var result = userStore.CreateAsync(user);          }          AssignRoles(serviceProvider, user.Email, roles);          context.SaveChangesAsync();     }      public static async Task<IdentityResult> AssignRoles(IServiceProvider services, string email, string[] roles)     {         UserManager<ApplicationUser> _userManager = services.GetService<UserManager<ApplicationUser>>();         ApplicationUser user = await _userManager.FindByEmailAsync(email);         var result = await _userManager.AddToRolesAsync(user, roles);          return result;     }  } 

To run this code on startup. In Startup.cs at end of configure method just after route configuration add following code as Stafford Williams said before.

SampleData.Initialize(app.ApplicationServices); 

Answer 2

As of the time of this writing, there is no plug in place for seeding the database, but you can create a class and add it to your container to do the same thing on app start, here is how I've done it, first create a class:

public class YourDbContextSeedData {     private YourDbContext _context;      public YourDbContextSeedData(YourDbContext context)     {         _context = context;     }      public async void SeedAdminUser()     {         var user = new ApplicationUser         {             UserName = "[email protected]",             NormalizedUserName = "[email protected]",             Email = "[email protected]",             NormalizedEmail = "[email protected]",             EmailConfirmed = true,             LockoutEnabled = false,             SecurityStamp = Guid.NewGuid().ToString()         };          var roleStore = new RoleStore<IdentityRole>(_context);          if (!_context.Roles.Any(r => r.Name == "admin"))         {             await roleStore.CreateAsync(new IdentityRole { Name = "admin", NormalizedName = "admin" });         }          if (!_context.Users.Any(u => u.UserName == user.UserName))         {             var password = new PasswordHasher<ApplicationUser>();             var hashed = password.HashPassword(user, "password");             user.PasswordHash = hashed;             var userStore = new UserStore<ApplicationUser>(_context);             await userStore.CreateAsync(user);             await userStore.AddToRoleAsync(user, "admin");         }          await _context.SaveChangesAsync();     } 

Register the type in ConfigureServices method of your Startup.cs class:

services.AddTransient<YourDbContextSeedData>(); 

Next pass the YourDbContextSeedData class to the Configure method of your Startup.cs class and use it:

public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory, YourDbContextSeedData seeder) {   seeder.SeedAdminUser(); }