Discord Login & Register(THE SECOND PART)

[Crokily]

🔧 Objective:

Implement user registration via Discord:

• Use Discord OAuth to fetch discord_id and username
• Prompt user to set a password on first login
• Store the final user in DB

⚠️ Notes:

• Handle OAuth failures gracefully
• Make sure first-time login logic is clear to users
• Add password validation (e.g., minimum length)

🗓️ Due:

On next Sunday(06/Apr)

✅ Deliverables:

• Working login/register flow via Discord
• New users correctly saved in DB

[Crokily]

Chelsea implemented user registration and login via Discord OAuth.

Basic Flow:
• When a user clicks the “Login with Discord” button, they are redirected to the Discord authorisation page.
• After the user authorises, Discord calls back to our /auth/discord/callback endpoint with a temporary code.
• Our backend exchanges this code for an access token and uses that token to retrieve the user’s basic information (such as discord_id and username).
• We then check the database using the discord_id to determine if the user is new.
• If the user is new, they will be guided through a registration process (set a password and register).
• If the user already exists, they are logged in directly.

Current State:
Since the login and registration APIs are not implemented yet, the callback currently returns JSON in the following format:

{
"message": "Check whether user is new",
"discord_id": "1213005028626014232",
"username": "unsw.ai.soc.it"
}