app/dependencies.py

from fastapi import Depends, HTTPException, status 
from fastapi.security import HTTPAuthorizationCredentials, HTTPBearer 
from jwt import InvalidTokenError 
from app import logger 
from firebase_admin import auth 
 
security = HTTPBearer() 
 
 
async def get_current_user( 
 credentials: HTTPAuthorizationCredentials = Depends(security), 
): 
 credentials_exception = HTTPException( 
 status_code=status.HTTP_401_UNAUTHORIZED, 
 detail="Could not validate credentials", 
 headers={"WWW-Authenticate": "Bearer "}, 
 ) 
 try: 
 payload = auth.verify_id_token(credentials.credentials) 
 except InvalidTokenError as e: 
 logger.info(e) 
 raise credentials_exception 
 except ValueError as e: 
 logger.info(e) 
 raise credentials_exception 
 except Exception as e: 
 logger.info(e) 
 print(e) 
 raise credentials_exception 
 
 return payload