The Falcon Web Framework

Release v1.4dev1 (Installation)

Falcon is a minimalist WSGI library for building speedy web APIs and app backends. We like to think of Falcon as the Dieter Rams of web frameworks.

When it comes to building HTTP APIs, other frameworks weigh you down with tons of dependencies and unnecessary abstractions. Falcon cuts to the chase with a clean design that embraces HTTP and the REST architectural style.

class CatalogItem(object):

    # ...

    @falcon.before(hooks.to_oid)
    def on_get(self, id):
        return self._collection.find_one(id)

app = falcon.API(after=[hooks.serialize])
app.add_route('/items/{id}', CatalogItem())

What People are Saying

“Falcon looks great so far. I hacked together a quick test for a tiny server of mine and was ~40% faster with only 20 minutes of work.”

“Falcon is rock solid and it’s fast.”

“I’m loving #falconframework! Super clean and simple, I finally have the speed and flexibility I need!”

“I feel like I’m just talking HTTP at last, with nothing in the middle. Falcon seems like the requests of backend.”

“The source code for falcon is so good, I almost prefer it to documentation. It basically can’t be wrong.”

“What other framework has integrated support for 786 TRY IT NOW ?”

Features

Falcon tries to do as little as possible while remaining highly effective.

  • Routes based on URI templates RFC
  • REST-inspired mapping of URIs to resources
  • Global, resource, and method hooks
  • Idiomatic HTTP error responses
  • Full Unicode support
  • Intuitive request and response objects
  • Works great with async libraries like gevent
  • Minimal attack surface for writing secure APIs
  • 100% code coverage with a comprehensive test suite
  • Only depends on six and mimeparse
  • Supports Python 2.6, 2.7, 3.3, 3.4 and 3.6
  • Compatible with PyPy and Jython

Who’s Using Falcon?

Falcon is used around the world by a growing number of organizations, including:

  • 7ideas
  • Cronitor
  • EMC
  • Hurricane Electric
  • Leadpages
  • OpenStack
  • Rackspace
  • Shiftgig
  • tempfil.es
  • Opera Software

If you are using the Falcon framework for a community or commercial project, please consider adding your information to our wiki under Who’s Using Falcon?

You might also like to view our Add-on Catalog, where you can find a list of add-ons maintained by the community.