I'm working on a FastAPI app with Google OAuth. The problem is that the auth token isn't showing up in the browser cookies after login. I've set up the callback to create and set the cookie, but it's not working as expected.
Here's a simplified version of what I'm doing:
```python
@router.get("/oauth/callback")
async def oauth_callback(code: str, response: Response):
# ... OAuth flow and token generation ...
access_token = create_access_token(data={"sub": user_email})
response.set_cookie(
key="auth_token",
value=access_token,
httponly=True,
domain='localhost'
)
return RedirectResponse(url="/success", status_code=302)
Even though I’m setting the cookie in the response, it’s not appearing in the frontend. Any ideas on what might be going wrong or alternative ways to securely pass the token to the frontend? Thanks!
hmm, interesting problem! have u considered using local storage instead of cookies? it’s sometimes easier to manage. also, double-check ur CORS settings - they can be sneaky troublemakers. what if u tried logging the token right after setting it? might give u some clues. keep us posted on what works!
I’ve encountered similar issues with token handling in FastAPI. One potential problem could be the domain setting. Instead of using ‘localhost’, try using None or ‘127.0.0.1’, and ensure your frontend and backend are operating on the same domain or are correctly configured for CORS.
Another approach is to include the ‘SameSite’ attribute in your cookie settings. Using something like samesite=“lax” might alleviate cross-site cookie issues.
If cookie-based authentication continues to be problematic, consider using header-based token authentication by sending the token in the response body, storing it on the frontend, and including it in the Authorization header for subsequent requests.
Remember to implement appropriate security measures such as HTTPS and token expiration regardless of the chosen method.
hey there! have u tried checking ur browser’s console for any errors? sometimes cookies get blocked. also, make sure ur frontend is actually looking for the cookie. if all else fails, u could try passing the token as a url parameter instead. good luck!