WIP: Migration to async_pymongo

modules/security.py

@@ -54,16 +54,20 @@ oauth2_scheme = OAuth2PasswordBearer(
 )
 
 
-def verify_password(plain_password, hashed_password):
+def verify_password(plain_password, hashed_password) -> bool:
     return pwd_context.verify(plain_password, hashed_password)
 
 
-def get_password_hash(password):
+def get_password_hash(password) -> str:
     return pwd_context.hash(password)
 
 
-def get_user(user: str):
-    found_user = col_users.find_one({"user": user})
+async def get_user(user: str) -> UserInDB:
+    found_user = await col_users.find_one({"user": user})
+
+    if found_user is None:
+        raise RuntimeError(f"User {user} does not exist")
+
     return UserInDB(
         user=found_user["user"],
         email=found_user["email"],
@@ -72,14 +76,16 @@ def get_user(user: str):
     )
 
 
-def authenticate_user(user_name: str, password: str):
-    if user := get_user(user_name):
+async def authenticate_user(user_name: str, password: str) -> Union[UserInDB, bool]:
+    if user := await get_user(user_name):
         return user if verify_password(password, user.hash) else False
     else:
         return False
 
 
-def create_access_token(data: dict, expires_delta: Union[timedelta, None] = None):
+def create_access_token(
+    data: dict, expires_delta: Union[timedelta, None] = None
+) -> str:
     to_encode = data.copy()
     if expires_delta:
         expire = datetime.now(tz=timezone.utc) + expires_delta
@@ -93,7 +99,7 @@ def create_access_token(data: dict, expires_delta: Union[timedelta, None] = None
 
 async def get_current_user(
     security_scopes: SecurityScopes, token: str = Depends(oauth2_scheme)
-):
+) -> UserInDB:
     if security_scopes.scopes:
         authenticate_value = f'Bearer scope="{security_scopes.scope_str}"'
     else:
@@ -112,12 +118,12 @@ async def get_current_user(
             raise credentials_exception
         token_scopes = payload.get("scopes", [])
         token_data = TokenData(scopes=token_scopes, user=user)
-    except (JWTError, ValidationError):
-        raise credentials_exception
+    except (JWTError, ValidationError) as exc:
+        raise credentials_exception from exc
 
-    user = get_user(user=token_data.user)
+    user_record = await get_user(user=token_data.user)
 
-    if user is None:
+    if user_record is None:
         raise credentials_exception
 
     for scope in security_scopes.scopes:
@@ -127,7 +133,7 @@ async def get_current_user(
                 detail="Not enough permissions",
                 headers={"WWW-Authenticate": authenticate_value},
             )
-    return user
+    return user_record
 
 
 async def get_current_active_user(