How to web programming with D2?

Thu Feb 10 23:44:48 PST 2011

On 10.02.2011 10:29, canalpay wrote:
> I am trying to write the web framework(but not to write, to gain experience.). Maybe the framework can has got a MVC  desing pattern. But first, the D2 is not has got for the web library and I am decided write to library for web.
>
> I am writed a function for post and get methods. (I am not tried to functions. But I think, they are works.)
> POST: https://github.com/canalpay/turna/blob/master/library/post.d
> GET  :  https://github.com/canalpay/turna/blob/master/library/get.d
>
> Environment variables are easy to write for the function.
> But How to write a cookie and session?
> I looked at the codes of tango. However, don't understand.(I'm new to d programming language.)

 From your code I assume you're using CGI. To set a cookie you have to 
set the "Set-Cookie" header with a string a specific format (see 
"Cookies on Wikipedia" link). In CGI the standard output of the program 
is used as HTTP response and therefore you can set headers by printing 
them first to stdout. After you're done writing headers (one per line 
usually) output an empty line. This marks the rest of the output as 
actual content of the response. So basically your program should output 
something like this:

	Content-Type: text/html
	Set-Cookie: name=value

	<html>
	…
	</html>

Depending on how you like to develop the RFCs for CGI and HTTP might 
come in handy. I sometimes also use Wikipedia to get an overview of the 
topic.

- Cookies on Wikipedia: http://en.wikipedia.org/wiki/HTTP_cookie
- HTTP on Wikipedia: http://en.wikipedia.org/wiki/Http
- CGI on Wikipedia: http://en.wikipedia.org/wiki/Common_Gateway_Interface
- CGI RFC: http://tools.ietf.org/html/rfc3875
- HTTP RFC: http://tools.ietf.org/html/rfc2616

Happy programming
Stephan Soller