def post(self):
"""
Creates a user
"""
data = request.json
username = data['username']
password = data['password']
s = session()
_user = s.query(UserModel).filter(UserModel.username == username).all()
if not _user:
user = UserModel(username=username, password=password)
s.add(user)
s.commit()
return user.as_dict(), 201
return error_response(message='User already exists', code=400)
