Users Manager

User manager is a .Net library which provides a backend framework for users management. The library uses EntityFrameworkCore and Google authentication. It supports both PostgreSQL and MySQL databases.

Before You Begin

Make sure to create a GCP project and have an active OAuth Client ID, the ID should authorize the Javascript origins which will initiate the authentication process.

How To Use

Step 1: Configure Database Provider

The library supports both PostgreSQL and MySQL. You need to configure your database provider and connection string in appsettings.json:

{
  "ConnectionStrings": {
    "DefaultConnection": "Server=localhost;Database=YourDatabase;User Id=your_user;Password=your_password;"
  },
  "DatabaseProvider": "PostgreSQL"
}

Database Provider Options:

• "PostgreSQL" - For PostgreSQL databases (default if not specified)
• "MySQL" - For MySQL/MariaDB databases

Connection String Examples:

For PostgreSQL:

Server=localhost;Port=5432;Database=YourDatabase;User Id=your_user;Password=your_password;

For MySQL:

Server=localhost;Port=3306;Database=YourDatabase;User=your_user;Password=your_password;

Step 2: Adding the required appsettings

You should have a "JwtSettings" section in appsettings.json file, which contains three main configurations:

• securityKey
• validIssuer
• validAudience
• expiryInMinutes Those settings can be also stored in application environment or Google secret manager, the library will be able to read them. You need also to add "GoogleAuthSettings" section in appsettings.json file, which contains three main configurations:
• clientId

Step 3: Create Database Migrations

Important: The library does not include pre-built migrations. You must create your own migrations based on your chosen database provider.

After configuring your database provider and connection string, create an initial migration in your project:

For PostgreSQL:

dotnet ef migrations add InitialCreate --project YourProject

For MySQL:

dotnet ef migrations add InitialCreate --project YourProject

Then apply the migration to create the database schema:

dotnet ef database update --project YourProject

Step 4: Configure dependency injection

Add the following code in your Startup file

    services.AddUserAuthentication(Configuration);

Step 5: Inject the UserServices and use the supported functions

UserServices provides three main functions:

• Login
• Register
• Assign roles

Step 6: Security framework

Inherit SystemPermissions and SystemRole classes in your project, and use them as an authentication policies. Example:

public class BaseRole: SystemRole {
    public const string SystemAdmin = "SystemAdmin";
}

public class BasePermissions: SystemPermissions
{
    public static readonly SystemAction CanManageUsers = new(nameof(CanManageUsers), BaseRole.SystemAdmin);
}


[Authorize(Policy = nameof(BasePermissions.CanManageUsers))]
public class UsersController : ControllerBase {

}