Getting Started

Install

The easiest way to install Pycnic is though pip.

pip install pycnic

Or, for Python 3:

pip3 install pycnic

Now Pycnic is ready to be used.

Making an App

Let's create a new file called quote.py

# quote.py
from pycnic.core import WSGI, Handler

class QuoteRes(Handler):
    def get(self):
        return { 
            "quote":"Cool URIs don't change",
            "author":"Tim Berners-Lee"
        }

class app(WSGI):
    routes = [('/', QuoteRes())]

The basic structure of this app is as follows:

1. The QuoteRes subclass of Handler. This exposes get, post, put, delete, and options methods of your subclass to the client if those methods are implemented. For now, we only care about get.
2. The app subclass of WSGI. This is a wsgi class with some configuration options. For now, we only care about routing '/' to QuoteRes.

Running an App

Since Pycnic is WSGI compliant, running this app can be done a number of ways.

For this example, let's use Gunicorn.

Installing Gunicorn

Gunicorn is available in the Python Package Index, so it can be installed with

pip install gunicorn

Or, for Python 3

pip3 install gunicorn

Hosting with Gunicorn

In the same directory as quote.py, run

gunicorn quote:app

Your app should now be hosted.

[2015-11-03 13:03:09 -0500] [7292] [INFO] Starting gunicorn 19.3.0
[2015-11-03 13:03:09 -0500] [7292] [INFO] Listening at: http://127.0.0.1:8000 (7292)
...

If you visit http://localhost:8000/ you should see a response like the following:

{"quote": "Cool URIs don't change", "author": "Tim Berners-Lee"}