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

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"}>;
[download]

for example, produces:

{"name":"jsonFileexample","problem":"thisIsThrProblem"withComma"}
[download]

- tye

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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}; };` [download] 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>` [download] 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.	[reply] [d/l] [select]
Re^5: perl dancer route template hashref pass complex json file to server issue (quotes) by tye (Sage) on Jul 26, 2016 at 18:30 UTC
`alert('<%passtoserver%>');` [download] So, try this: `alert('"\""')` [download] 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	[reply] [d/l] [select]
Re^5: perl dancer route template hashref pass complex json file to server issue (module) by Anonymous Monk on Jul 26, 2016 at 18:49 UTC
What is your template engine? see Re^2: Testing Custom Template Filters in Dancer (in-memory template)	[reply]
Re^6: perl dancer route template hashref pass complex json file to server issue (module) by RamiD (Acolyte) on Jul 27, 2016 at 04:40 UTC
template: "template_toolkit" engines: template_toolkit: encoding: 'utf8'	[reply]
Re^7: perl dancer route template hashref pass complex json file to server issue (escape/filter) by tye (Sage) on Jul 28, 2016 at 04:44 UTC
Re^8: perl dancer route template hashref pass complex json file to server issue (escape/filter) by RamiD (Acolyte) on Jul 28, 2016 at 21:24 UTC
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