How can I implement logout functionality in an async Python application?

How can I implement logout functionality in an async Python application?

You can implement logout functionality by clearing the user's session or token. Are you using a specific framework?

Yes, I'm using FastAPI. How do I clear the session in FastAPI?

In FastAPI, you can use the Depends feature to manage sessions. You can create a logout endpoint that invalidates the session.

Can you provide a code example for that?

Sure! Here's a simple example:

from fastapi import FastAPI, Depends, HTTPException
from fastapi.security import OAuth2PasswordBearer

app = FastAPI()

oauth2_scheme = OAuth2PasswordBearer(tokenUrl='token')

@app.post('/logout')
async def logout(token: str = Depends(oauth2_scheme)):
    # Logic to invalidate the token
    return {'message': 'Successfully logged out'}