server/util/Seeder/Recipes/OrganizationWithUsersRecipe.cs

using Bit.Core.Entities;
using Bit.Infrastructure.EntityFramework.Repositories;
using Bit.Seeder.Factories;
using LinqToDB.EntityFrameworkCore;
using Microsoft.AspNetCore.Identity;

namespace Bit.Seeder.Recipes;

public class OrganizationWithUsersRecipe(DatabaseContext db, IPasswordHasher<User> passwordHasher)
{
    public Guid Seed(string name, int users, string domain)
    {
        var (organization, orgKey) = OrganizationSeeder.CreateEnterprise(name, domain, users);
        var (user, _) = UserSeeder.CreateUser(passwordHasher, $"admin@{domain}");
        var orgUser = organization.CreateOrganizationUser(user, orgKey);

        var additionalUsers = new List<User>();
        var additionalOrgUsers = new List<OrganizationUser>();
        for (var i = 0; i < users; i++)
        {
            var (additionalUser, _) = UserSeeder.CreateUser(passwordHasher, $"user{i}@{domain}");
            additionalUsers.Add(additionalUser);
            additionalOrgUsers.Add(organization.CreateOrganizationUser(additionalUser, orgKey));
        }

        db.Add(organization);
        db.Add(user);
        db.Add(orgUser);

        db.SaveChanges();

        // Use LinqToDB's BulkCopy for significant better performance
        db.BulkCopy(additionalUsers);
        db.BulkCopy(additionalOrgUsers);

        return organization.Id;
    }
}