event.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Provides Event Hooks against REST Resources.

This module is the mastermind controlling the
flow of triggers and events to resources
"""

import traceback
from settings import (LANGUAGES,
                      LANGUAGE_DEFAULT)

__author__ = "Sanjay Joshi"
__copyright__ = "IBM Copyright 2016"
__credits__ = ["Sanjay Joshi"]
__license__ = "Apache 2.0"
__version__ = "1.0"
__maintainer__ = "Sanjay Joshi"
__email__ = "joshisa@us.ibm.com"
__status__ = "Prototype"


# Pre-Request Event Hook example
def before_returning_items(request, lookup):
    try:
        desiredLang = request.accept_languages.best_match(LANGUAGES.keys(),
                                                          LANGUAGE_DEFAULT)
        print("The best matched Accept-Language Header is: " + desiredLang +
              " (" + LANGUAGES.get(desiredLang) + ")")
    except Exception as e:
        print(e)
        traceback.print_exc()


# Post-Request Event Hook example
def after_returning_items(resource, request):
    try:
        print('A GET on the "%s" endpoint was just performed!' % resource)
    except Exception as e:
        print(e)
        traceback.print_exc()