Beefy Boxes and Bandwidth Generously Provided by pair Networks
P is for Practical
 
PerlMonks  

Re^3: perl dancer route template hashref pass complex json file to server issue (module)

by tye (Sage)
on Jul 26, 2016 at 16:28 UTC ( #1168578=note: print w/replies, xml ) Need Help??


in reply to Re^2: perl dancer route template hashref pass complex json file to server issue
in thread perl dancer route template hashref pass complex json file to server issue

Use a JSON library to generate JSON values (we almost always use JSON::XS). Generating a JSON value by hand is error prone, especially when you don't know how escape characters work in quotes in the language you are writing in.

#!/usr/bin/perl -l print qq<{"name":"jsonFileexample","problem":"thisIsThrProblem\"withCo +mma"}>;

for example, produces:

{"name":"jsonFileexample","problem":"thisIsThrProblem"withComma"}

- tye        

  • Comment on Re^3: perl dancer route template hashref pass complex json file to server issue (module)
  • Select or Download Code

Replies are listed 'Best First'.
Re^4: perl dancer route template hashref pass complex json file to server issue (module)
by RamiD (Acolyte) on Jul 26, 2016 at 18:07 UTC
    this is the code ( this time I've tried it :-) ) in my myapp.pm I had
    package myapp; use Dancer ':syntax'; use File::Slurp qw(read_file write_file read_dir); #use db; use JSON; use Data::Dump qw/ pp /; use DBI; our $VERSION = '0.1'; use Dancer::Plugin::Database; get '/test' => sub { my $jsonobj; $jsonobj='[{"name":"test","problem":"here is the problem \" comma +"}]'; debug $jsonobj; template 'test',{passtoserver=> $jsonobj}; };
    under the views I had file test.tt
    <!DOCTYPE html> <html> <head> </head> <body> <div style = "padding: 100px 100px 10px;"> <script> alert('<%passtoserver%>'); var test='<%passtoserver%>'; alert(JSON.stringify(test)); alert(JSON.parse(test)); </script> <button type="text" > </div> </body> </html>
    I had an error with JSON.parse(test) , when I had browser navigated to http://localhost:3000/test yes your right , when we do that with perl module rather than done by hand is a plus , but teh json file was generated by my website user and I'm just store it in DB , all the work on it just post and get from client and server thanks Rami D.
      alert('<%passtoserver%>');

      So, try this:

      alert('"\""')

      What gets displayed? Same as with alert('"""').

      If you are using a templating system to paste values into javascript, then use one that can actually do it correctly, including escaping things that need to be escaped.

      - tye        

        template: "template_toolkit" engines: template_toolkit: encoding: 'utf8'

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1168578]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others cooling their heels in the Monastery: (3)
As of 2020-10-26 19:51 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    My favourite web site is:












    Results (253 votes). Check out past polls.

    Notices?