Beefy Boxes and Bandwidth Generously Provided by pair Networks
Think about Loose Coupling
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??

I've been using the JSON header via CGI::Application::Plugin::JSON to send data from a CGI::Application webapp. Say you have a runmode called "blackout". Here's an untested sketch:

sub blackout { my $self = shift; my $message = 'hi!'; $self->header_add(-type=>"text/plain"); my $query = $self->query(); my $output = $query->start_html(); $output .= $query->span($message); $self->add_json_header(boStatus=>'OK'); $self->add_json_header(boError=>'SUCCESS'); $self->add_json_header(boMessage=>$message); $output .= $query->end_html; return $output; }
Notice the span tag: I couldn't find a way to get it working without putting someting in the body of the page, so I just stuck the message in there. Figured it would at least mean something if it ever got displayed by a browser.

Now on the other end, I'm using the prototype library to get the JSON out of the header.

I don't know how to do Ajax without prototype, so this is the best I can give you.

function tryJSON(app) { var url = '/cgi-bin/TryCGIApp.cgi'; var params = "mode=blackout"; new Ajax.Request(url, { onSuccess : function(resp,jsonheader) { var foo = jsonheader.boStatus; var funk = jsonheader.boError; alert("The response from the server is: " + foo + " and " ++ funk); }, onFailure : function(resp) { alert("Oops, there's been an error."); }, parameters : params }); }

I assume there's some way to reverse this process, with the javascript adding the JSON headers, but I haven't gotten that far yet...If you get it, please post!

Update:  explicitly mention CGI::Application::Plugin::JSON

non-Perl: Andy Ford


In reply to Re: Reading Raw data in CGI::Application by andyford
in thread Reading Raw data in CGI::Application by BaldPenguin

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others romping around the Monastery: (6)
    As of 2015-07-04 17:28 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









      Results (60 votes), past polls