I have created a asp .net core mvc on .Net 8.0,

Here, I created AppDbContext class:

public class AppDbContext : DbContext
{
    public AppDbContext(DbContextOptions<AppDbContext> options) : base(options) { }
    public DbSet<User> Users { get; set; }
}

DbRepo class:

public class DbRepo
{
    internal readonly AppDbContext db;
    internal DbRepo(AppDbContext context)
    {
        this.db = context;
    }
}

Here's a user repository where I need to use db context, there could be multiple repository:

public class UserRepository : DbRepo, IUser<User, User, string>
{
    public async Task<bool> Create(User user)
    {
        try
        {
            if (!await IsExist(user))
            {
                await db.AddAsync(user);
            }
            return db.SaveChanges() > 0;
        }
        catch (Exception)
        {
            return false;
        }
    }
}
 

Here a class for DataAccessFactory class for loosely coupled dependencies:

public class DataAccessFactory
{
    public static IUser<User, User, string> UserData()
    {
        return new UserRepository();
    }
}

Now Service will call to the dataAccessfactory to repository methods:

public class UserService
{
    public static Task<bool> CreateUser(UserDTO newUser)
    {
        User user = UserMapping(newUser);
        return DataAccessFactory.UserData().Create(user);
    }
}

And then this service will call from controller. Here is the problem, there should to give an argument for inherit DbRepo class for every repo.

How could I solve it.

I added this in Program.cs

builder.Services.AddScoped<DbRepo>();

I have created an ASP.NET Core 8.0 MVC app.

Here is my AppDbContext class:

public class AppDbContext : DbContext
{
    public AppDbContext(DbContextOptions<AppDbContext> options) : base(options) { }
    public DbSet<User> Users { get; set; }
}

DbRepo class:

public class DbRepo
{
    internal readonly AppDbContext db;
    internal DbRepo(AppDbContext context)
    {
        this.db = context;
    }
}

Here's a user repository where I need to use DbContext, there could be multiple repositories:

public class UserRepository : DbRepo, IUser<User, User, string>
{
    public async Task<bool> Create(User user)
    {
        try
        {
            if (!await IsExist(user))
            {
                await db.AddAsync(user);
            }
            return db.SaveChanges() > 0;
        }
        catch (Exception)
        {
            return false;
        }
    }
}

This is the DataAccessFactory class for loosely coupled dependencies:

public class DataAccessFactory
{
    public static IUser<User, User, string> UserData()
    {
        return new UserRepository();
    }
}

Now service will call to the DataAccessFactory to repository methods:

public class UserService
{
    public static Task<bool> CreateUser(UserDTO newUser)
    {
        User user = UserMapping(newUser);
        return DataAccessFactory.UserData().Create(user);
    }
}

And then this service will call from controller. Here is the problem, there should to give an argument for inherit DbRepo class for every repo.

How could I solve it?

I added this in Program.cs:

builder.Services.AddScoped<DbRepo>();