May 12, 2010

Twitter API, OAuth and decorators

Vladimir Sidorenko
Vladimir Sidorenko

In my current project I had a task to use twitter API. Twitter uses OAuth for authentication, which is pretty dreary. To avoid fiddling with it all the time, I've moved authentication to decorator, now it looks like this:

    def tweet_hello(request, api):
# ...

Decorator checks if key is available, and, if needed - initiates authentication. User is redirected to twitter, grants permission and is redirected back to site, to the same place where he left off. If key is available - nothing happens, just view is launched as usual.

It's convenient that there's no need for additional twitter settings in user profile.

tweepy is used as an API wrapper.

def twitter_api(view):
        def wrapped(request, args, *kwargs):
            callback_url = absolute_url(oauth_endpoint)
            auth = tweepy.OAuthHandler(CONSUMER_KEY, CONSUMER_SECRET, callback_url)
if 'twitter_access_token' in request.session:
            key, secret =     request.session['twitter_access_token']
            auth.set_access_token(key, secret)
            return view(request, api=tweepy.API(auth), *args, **kwargs)

        request.session['twitter_action'] = request.path

        redirect_url = auth.get_authorization_url()
        request.session['twitter_request_token'] = (auth.request_token.key, auth.request_token.secret)
        return redirect(redirect_url)
    return wrapped

def oauth_endpoint(request):
    callback_url = absolute_url(oauth_endpoint)
    auth = tweepy.OAuthHandler(CONSUMER_KEY, CONSUMER_SECRET, callback_url)
    key, secret =     request.session.pop('twitter_request_token')
    auth.set_request_token(key, secret)
    verifier = request.REQUEST.get('oauth_verifier')
    request.session['twitter_access_token'] = (auth.access_token.key, auth.access_token.secret)

    return redirect(request.session.pop('twitter_action'))
  • of course, you need to wrap everything in try..except blocks and process errors accordingly
  • absolute_url should return full url, with http://
  • apart from request.path you can also store POST and GET.
  • path can be passed as an argument to callback_url

More thoughts

Feb 12, 2020Technology
5 Best Payment Gateways For 2020

We reviewed the best payment gateways in 2020. Here’s our comparison of their features, advantages, and disadvantages.

Vladimir Sidorenko
Vladimir Sidorenko
Oct 01, 2017Technology
RESTful API Design: Best Practices

We've collected some useful tips regarding REST aimed for beginner developers.

Vladimir Sidorenko
Vladimir Sidorenko
Feb 18, 2010Technology
Absolute urls in models

Everybody knows about permalink, but it's usually used only in get_absolute_url. I prefer to use it for all related model urls.class Event(models.Model):# [email protected] edit_url(self):return ('event_edit', (, ))And then in template:<a href="{{ event.edit_url }}">Редактировать событие</a>

Vladimir Sidorenko
Vladimir Sidorenko
Jan 28, 2017Technology
Creating a site preview like in slack (using aiohttp)

In this article we will write a small library for pulling metadata and creating a preview for a site just like Slack does.

Igor Tokarev
Igor Tokarev