Pass DbContext to class library - class

Question

I am developing an API to get data from the database using the entity framework. I have a class library to handle my generic tasks, including Repository, UnitOfWork etc. My UnitOfWork class is as follows.
using System;
using System.Collections.Generic;
using System.Text;
using System.Threading.Tasks;
using AppPermission.Data.DataContext;
using AppPermission.Data.Models;
using AppPermission.Data.Repositories;
namespace AppPermission.Common.UnitOfWork
{
public class UnitOfWork : IUnitOfWork
{
private readonly DbContext dbContext;
public UnitOfWork(DbContext context)
{
dbContext = context;
}
public int SaveChanges()
{
return dbContext.SaveChanges();
}
public async Task<bool> SaveChangesAsync()
{
return await dbContext.SaveChangesAsync() > 0;
}
public void Dispose()
{
dbContext.Dispose();
GC.SuppressFinalize(this);
}
}
}
My API's ConfigureServices is as below
public void ConfigureServices(IServiceCollection services)
{
services.AddDbContext<AppDbContext>(options =>
options.UseSqlServer(
Configuration.GetConnectionString("DefaultConnection")));
services.AddDefaultIdentity<IdentityUser>(options => options.SignIn.RequireConfirmedAccount = true)
.AddEntityFrameworkStores<AppDbContext>();
services.AddSession();
services.AddControllersWithViews();
services.AddRazorPages();
services.AddScoped<IUnitOfWork, UnitOfWork>();
}
I want to pass AppDbContext registered in the API startup to UnitOfWork in the class library. There were a couple of solutions in StackOverflow using(services.BuildServiceProvider), but the connection is disposed of after the first API call (GetAll). Is there any way of doing it? If I place my UnitOfWork in the API project itself and changing the constructor in UnitOfWork to accept AppDbContext, it works fine?

Answer 1

It's a good idea to use Generic UnitOfWork :
public class UnitOfWork<TContext> : IUnitOfWork where TContext : DbContext
class constructor :
public UnitOfWork(TContext context, ILogger<UnitOfWork<TContext>> logger){}
Then add it to IServiceCollection like this :
services.AddScoped<IUnitOfWork, UnitOfWork<MonitoringDbContext>>();