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=================================
Example -- Using Non-Global State
=================================
For obvious reasons it may be desirable for your application to have some non-global state that is used by your route handlers.
Below we have created a simple ``ItemStore`` class that has an instance of ``Klein`` as a class variable ``app``.
We can now use ``@app.route`` to decorate the methods of the class.
.. code-block:: python
import json
from klein import Klein
class ItemStore:
app = Klein()
def __init__(self):
self._items = {}
@app.route('/')
def items(self, request):
request.setHeader('Content-Type', 'application/json')
return json.dumps(self._items)
@app.route('/<string:name>', methods=['PUT'])
def save_item(self, request, name):
request.setHeader('Content-Type', 'application/json')
body = json.load(request.content)
self._items[name] = body
return json.dumps({'success': True})
@app.route('/<string:name>', methods=['GET'])
def get_item(self, request, name):
request.setHeader('Content-Type', 'application/json')
return json.dumps(self._items.get(name))
if __name__ == '__main__':
store = ItemStore()
store.app.run('localhost', 8080)
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