User Authentication and Sessions

Coming Soon

This lesson will teach you how to implement secure authentication and session management for your chat server. You’ll learn how to:

• Design secure user authentication systems
• Implement session management and token validation
• Build user registration and login flows
• Handle password hashing and security best practices
• Implement authorization and access control

What You’ll Build

By the end of this lesson, you’ll have implemented:

• Secure user registration and login systems
• Session token generation and validation
• Password hashing and security measures
• User authorization and access control
• Session persistence and cleanup

Key Concepts Preview

% User authentication
authenticate_user(Username, Password) ->
    case user_store:get_user(Username) of
        {ok, User} ->
            case verify_password(Password, User#user.password_hash) of
                true -> generate_session_token(User);
                false -> {error, invalid_credentials}
            end;
        {error, not_found} -> {error, user_not_found}
    end.

This lesson builds on the message broadcasting from Lesson 17 and prepares you for the chat rooms and channels we’ll explore in Lesson 19.

This lesson is currently under development. Check back soon for the complete content!