Mojo Lite - Invalid JSON

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

So I want to use Datatables.js to have a nice UI, at the back end I make a database query and produce json, but Datatables isn't happy, I think my json is to blame

my @rows =  $dbh->selectall_arrayref($sql, {Slice => {}});
my $cont = {data => \@rows};

$c->render(json => $cont);
[download]

My 'json' looks like:

{"data": [[
{
 "UNAME": "Name Goes Here",
 "AGE": "Age goes here",
 "TITLE": "Title goes here"
},
more results int he same format

]]}
[download]

Datatables says "Datatables warning: table id=example - Requested unknown parameter "UNAME" for row 0, col 0. I think my json is badly formed

Comment on Mojo Lite - Invalid JSON Select or Download Code

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Re: Mojo Lite - Invalid JSON by Corion (Patriarch) on Feb 28, 2020 at 16:37 UTC
You are passing an array with a single element, that is another array full of hashes to Datatables.js. Are you sure that this is what Datatables.js wants? Maybe it is happier with a simple Array-of-Hashes? `my $rows = $dbh->selectall_arrayref($sql, {Slice => {}}); $c->render( json => { data => $rows });` [download]	[reply] [d/l]
Re^2: Mojo Lite - Invalid JSON by Anonymous Monk on Mar 03, 2020 at 12:38 UTC
Worked well, thanks for your solution	[reply]
Re: Datatables.js - Invalid JSON by Anonymous Monk on Feb 29, 2020 at 08:29 UTC
You alway gotta read the docs :) `var dataSet = [ ["array", "of", "arrays" ], ["array", "of", "arrays" ] ]; $('#example').DataTable( { data: dataSet, ...` [download] your JSON equally needs to send an array of arrays, like a table, no hashes	[reply] [d/l]
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