Sign In / Sign Up Functionality

Data Structure

User Object

interface User {
    ulid: string;           // ULID
    login: string;     // Unique username
    password: string;   // Encrypted password
}

Session Structure

• Index 0: User ID (ULID)
• Index 1: login

Implementation Details

Sign Up Flow

1. User fills in login and password
2. Server validates Username availability
3. Server creates user record
4. Server sets session cookie

Sign In Flow

1. Client sends login and password as POST request
2. Server verifies credentials
3. Server generates session cookie
4. Server sets user in session

Routes

/login

• GET: Renders sign in form
• POST: Handles sign in

/signup

• GET: Renders sign up form
• POST: Handles sign up