correction of the auth service

api/v1/auth.py

@@ -1,7 +1,7 @@
 from datetime import datetime, timedelta
 from email.mime.multipart import MIMEMultipart
 from email.mime.text import MIMEText
-from fastapi import APIRouter, HTTPException, status, Body
+from fastapi import APIRouter, Depends, HTTPException, status, Body
 from fastapi.responses import JSONResponse
 from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
 from sqlalchemy import update, select
@@ -31,7 +31,7 @@ async def signup(user: UserCreate):
         return await UserService.create_user(user, db)
 
 @router.post("/token", response_model=Token, summary="Login and get access token")
-async def login_for_access_token(form_data: OAuth2PasswordRequestForm = Body(...)):
+async def login_for_access_token(form_data: OAuth2PasswordRequestForm = Depends()):
     async with get_db() as db:
         user = await AuthService.authenticate_user(form_data.username, form_data.password, db)
         logger.info(f"User {form_data.username} logged in") 

services/auth_service.py

@@ -120,9 +120,6 @@ class AuthService:
         role_result = await db.execute(role_query)
         role_data = role_result.mappings().all()
 
-        if not role_data:
-            raise credentials_exception
-
         role = {
             "id": role_data[0]["id"],
             "name": role_data[0]["name"],