Hello! I am very new to Perl and looking on how to use a JQuery AJAX call to execute my perl script. I would like the perl script to return a JSON object for my browser as well (in this case pulling from SQLite Database). I am receiving an error response on the AJAX catch. In response obj (responseText) I can see the text content of the perl file. So my first problem is why the perl script not executing? Every example I can find looks as similar as mine. Any pointers would be very appreciated!

    function ajaxPerl() {
      $.ajax({
        method: 'GET', url: `../cgi-bin/test-dbi.pl`,
        dataType: 'json',
        header: {
          "content-type": "application/json;charset=utf-8"
        }
      }).then((response) => {
        console.log('RESPONSE -> ', response);
      }).catch((error) => {
        console.log('ERROR -> ', error);
      });
    }

[download]

My Perl is below - I am not sure it is returning a JSON file to the browser correctly at this point - but it does format it in the terminal with out errors.

#!/usr/bin/perl

use strict;
use warnings;
use CGI;
use DBI;
use JSON;

my $driver   = "SQLite";
my $database = "../data/test.db";
my $dsn = "DBI:$driver:dbname=$database";
my $userid = "";
my $password = "";
my $dbh = DBI->connect($dsn, $userid, $password, { RaiseError => 1 })
                      or die $DBI::errstr;

print "Opened database successfully\n";

# CREATE TABLE
my $stmt = qq(CREATE TABLE MYTABLE
  (ID INT PRIMARY KEY   NOT NULL,
   DATE           TEXT  NOT NULL,
   TIME           TEXT  NOT NULL,
   DESCRIPTION    CHAR(250)););

my $rv = $dbh->do($stmt);
  if($rv < 0) {
    print $DBI::errstr;
  } else {
    print "Table created successfully\n";
 }
  $stmt = qq(INSERT INTO MYTABLE (ID, DATE, TIME, DESCRIPTION)
        VALUES (1, '2017-05-13', '07:55:00', 'The very first chicken')
+;);
  $rv = $dbh->do($stmt) or die $DBI::errstr;
  print "Records created successfully\n";

  #  convert to JSON
  my @output;
  my $sth = $dbh->prepare('select DATE, TIME, DESCRIPTION from MYTABLE
+');
  $sth->execute;

  while ( my $row = $sth->fetchrow_hashref ){
      push @output, $row;
  }

  my $cgi = CGI->new;
  print $cgi->header( 'application/json' );
  print to_json( { myData => \@output } );

  $dbh->disconnect();

[download]

In reply to AJAX call to Perl script + return - error by Noben

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