REST w Pyramidzie

Transcript

1. REST w Pyramidzie Łukasz Oleś
3. Prostota Minimalizm Dokumentacja Szybkość Stabilność
4. Działa na: • Python 2.6 – 3.3 • PyPy • Jython • GAE
5. REST http://autouzupelnij.pl GET http://api.autouzupelnij.pl/v1/public/city?term=gli
6. REST (…)/public/city?term=gli Nazwa konta (…)/public/city?term=gli
7. REST (…)/public/city?term=gli Nazwa konta Kontener
8. REST (…)/public/city?term=gli Nazwa konta Zapytanie Kontener
9. Nowy projekt pcreate -t starter api \api development.ini setup.py \api __init__.py views.py
10. Plik api/__init__.py from pyramid.config import Configurator def main(global_config, **settings): config = Configurator(settings=settings) config.add_route('completion', '/v1/{account}/{container}') config.scan() return config.make_wsgi_app() pserve development.ini
11. Plik api/views.py from pyramid.view import view_config @view_config(route_name='completion', renderer='json', request_method='GET') def completion(request): account = request.matchdict['account'] container = request.matchdict['container'] query = request.params.get('term', u'') storage = get_storage(account) offers = storage.suggest(container, query)) return offers
12. Plik api/views.py @view_config(route_name='completion', renderer='json', request_method='DELETE', permission='edit') def delete_container(request): container = request.matchdict['container'] account = request.matchdict['account'] storage = get_storage( account) storage.delete_container(container)
13. Nowy element Plik api/__init__.py config.add_route('items', '/v1/{account}/{container}/{item}')
14. Plik api/views.py @view_config(route_name='items', renderer='json', request_method='PUT', permission='edit') def add_item(request): container = request.matchdict['container'] account = request.matchdict['account'] item = request.matchdict['item'] storage = get_storage(account) storage.store_item(container, item)
15. Walidacja - dodatkowe dane { ”population” : 20000, ”province” : ”slaskie” }
16. Colander http://docs.pylonsproject.org/projects/colander from colander import MappingSchema, SchemaNode, Int, String class City(MappingSchema): province = SchemaNode(String()) population = SchemaNode(Int())
17. Plik api/views.py @view_config(route_name='items', renderer='json', request_method='PUT', permission='edit') def add_item(request): container = request.matchdict['container'] account = request.matchdict['account'] item = request.matchdict['item'] city = City() data = city.deserialize(request.json_body) storage = get_storage(account) storage.store_item(container, item, data)
18. @view_config(context=colander.Invalid) def failed_valdation(exc, request): err = json.dumps(exc.asdict()) return HTTPBadRequest(err)
19. Autoryzacja http://docs.pylonsproject.org/projects/pyramid/en/ latest/tutorials/wiki2/authorization.html https://ziggurat-foundations.readthedocs.org
20. Plik api/__init__.py from api.auth import RootFactory, auth_check def main(global_config, **settings): config = Configurator(settings=settings, root_factory=RootFactory, authentication_policy= AuthenticationPolicy(auth_check))
21. COSR – poziom zaawansowany JavaScript Ajax http://autouzupelnij.pl -> http://api.autouzupelnij.pl http://en.wikipedia.org/wiki/Cross-origin_resource_sharing
22. Access-Control-Allow-Origin: http://autouzupelnij.pl Access-Control-Allow-Origin: * Access-Control-Allow-Methods: POST, GET Access-Control-Allow-Headers: Content-Type COSR – poziom zaawansowany
23. Plik api/__init__.py from pyramid.events import subscriber, NewResponse @subscriber(NewResponse) def add_access_list(event): event.response.headerlist.append( ('Access-Control-Allow-Origin', '*')) COSR – poziom zaawansowany
24. Co dalej? Cornice http://cornice.readthedocs.org/
25. Pytania Łukasz Oleś lukaszoles@gmail.com
26. Dziękuję Łukasz Oleś lukaszoles@gmail.com