Pycon SG

"Basics of WSGI" talk at Pycon SG 2015

Transcript

1. WSGI Concepts • WSGI standard • Server side • Application side
2. WSGI Standard • Web Server Gateway • Not code, not software. • Set of specifications. • Interface
3. Server side • Not in physical sense. • Understands http. Like any general web server. • WSGIRequestHandler. WSGI compliant.
4. Application side • Contains logic. • Web framework is part of “ WSGI implementation.
5. Web programmers • Already many servers exist. • Web programmers write application side of WSGI.
6. Basic web application https://gist.github.com/akshar-raaj/d82a3d678b6989b020f7
7. Conditions for “application side” • Must be a callable. • Must accept two arguments. • Must use start_response() to notify the server.
8. Not so basic • Add few if conditions. • Web frameworks have a better way to handle url routing.
9. Using Gunicorn • Gunicorn is a WSGI compliant server. • pip install gunicorn. • gunicorn application:application
10. make_server with Django • A normal Django project with “runserver”. • Find where the “application” callable is. • dj.wsgi.application. • Use “make_server” to start a web server.
11. Gunicorn with Django • gunicorn dj.wsgi:application • gunicorn dj.wsgi:application
12. Gist Links • https://gist.github.com/akshar-raaj/ d82a3d678b6989b020f7 • https://gist.github.com/akshar-raaj/ f2500270c6f92631e1d1
13. Django project • The Django project we discussed during the talk is on Github. • https://github.com/akshar-raaj/pyconsg
14. About me • I work at Agiliq. • Github: https://github.com/akshar-raaj • Twitter: https://twitter.com/_akshar • Blog: