Adding a User Confirmation Endpoint

To verify user email addresses and prevent spam, it’s often recommended to implement a confirmation email system. This involves sending a confirmation email to the user’s registered email address, containing a unique confirmation token. When the user clicks on the confirmation link, their account is verified.

Creating a Confirmation Endpoint

Python

from fastapi import APIRouter, Depends, HTTPException
from app.models import User
from app.utils import create_confirmation_token, send_confirmation_email

router = APIRouter()

@router.post("/register", response_model=UserSchema)
async def register_user(user: UserCreate, db: Session = Depends(get_db)):
    # ... (rest of the registration logic)

    confirmation_token = create_confirmation_token(user.id)
    send_confirmation_email(user.email, confirmation_token)

    return {"message": "Registration successful. Please check your email for confirmation."}

Creating a Confirmation Endpoint

Python

@app.get("/confirm/{token}")
async def confirm_email(token: str, db: Session = Depends(get_db)):
    try:
        user_id = decode_confirmation_token(token)
        user = await db.query(User).filter(User.id == user_id).first()
        if not user:
            raise HTTPException(status_code=404, detail="User not found")

        user.is_verified = True
        db.add(user)
        await db.commit()
        return {"message": "Email confirmed"}
    except HTTPException as e:
        raise e

Additional Factors

• Email Verification: Implement a robust email verification system to prevent spam and ensure that users are genuine.
• Resend Options: Allow users to resend the confirmation email if they don’t receive it.
• Expiration: Set an expiration time for confirmation tokens to prevent abuse.
• Security: Protect against potential security vulnerabilities like CSRF attacks.

By adding a user confirmation endpoint to your FastAPI application, you can enhance the security and reliability of your user registration process.