Um pouco da origem para chegar no WSGI

Transcript

1. Web Forms
2. /index.html CLIENT SERVER REQUEST 1989
3. /index.html CLIENT SERVER REQUEST <html> <h1>Hello!</h1> </html>
4. CLIENT SERVER RESPONSE Hello!
5. GET /mypage.html HTTP/1.0 User-Agent: NCSA_Mosaic/2.0 (Windows 3.1) 200 OK Date: Tue, 15 Nov 1994 08:12:31 GMT Server: CERN/3.0 libwww/2.17 Content-Type: text/html <HTML> A page with an image <IMG SRC="/myimage.gif"> </HTML> https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Evolution_of_HTTP Exemplo request/response
6. Web estática por design
7. CLIENT SERVER 1991
8. CLIENT SERVER <form action=”/cgi/form.py” method=”post”> <input name=”full_name”> <input name=”email”> <input name=”message”> <input type=”submit” value=”Submit”> </form> REQUEST HTTP SERVER RUN SCRIPT + Print output ENV VARs read (STDIN, $query_string, $ENV{'CONTENT_LENGTH'}); Perl Bash Python
9. CLIENT SERVER REQUEST HTTP SERVER RUN SCRIPT + Print output HTTP SERVER RESPONSE print(“Contato Enviado!”) Contato Enviado!
10. - Muitos http servers - Muitas formas de nomear variáveis para rodar scripts - Scripts não eram portáveis entre diferentes http web servers - Desenvolvedores queriam um padrão para nomear as variáveis e deixar scripts portáveis e padronizados Problemas no início dos forms:
11. The Dark Side of the Moon CGI Common Gateway Interface (specification) 1993 início 1997 mais popular https://en.wikipedia.org/wiki/Common_Gateway_Interface https://www.jmarshall.com/easy/cgi/portuguese/
12. https://help.hcltechsw.com/dom_designer/9.0.1/appdev/H_TABLE_OF_CGI_VARIABLES_3561.html
13. https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Evolution_of_HTTP Mas e o WSGI? Browser Web Server Python Web App HTTP WSGI
14. Com diversos Python Web frameworks… Precisava padronizar a forma que os scripts eram chamados e não só as variáveis de ambientes…
15. Python Web Server Gateway Interface Or WSGI == “wizgy” https://www.python.org/dev/peps/pep-0333/
16. 2003 https://ruslanspivak.com/lsbaws-part2/
17. Roger Camargo https://huogerac.hashnode.dev