Unable to send value through Ajax in Codeigniter 4.1.3 - ajax

Question

I am using CodeIgniter 4.1.3 for a project. I am facing issue caching value in Controller through Ajax post. Codes are following:
$(document).on('click','#showCont', function(){
var memID=$(this).attr('data-mem');
$data = {memID: memID};
//console.log($data);
$.ajax({
url: "<?=base_url();?>"+"/Member/getContact/",
headers: {'X-Requested-With': 'XMLHttpRequest'},
type: "POST",
data: $data,
cache: false,
success: function (cont) {
console.log(cont);
}
});
});
And here is the Controller:
<?php
namespace App\Controllers;
use App\Controllers\BaseController;
use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;
use App\Models\Project_model;
use App\Models\General_model;
use CodeIgniter\I18n\Time;
class Member extends BaseController {
public function getContact(){
if ($this->request->isAJAX()) {
// echo "Hi"; printing Hi in console
//echo $query = $this->request->getPost('memID'); // returning nothing
print_r($_REQUEST);
}
}
And the route:
$routes->post('Member/getContact)', 'Member::getContact');
Below is the response of print_r in console.log
Array
(
[__tawkuuid] => e::xxxdomainxxx.com::FtBr5/am9LXZ8gvI7KxyHJZ279zLJEw11KZhdGh+4sflsIqrslML4R2NgRYqN8Vc::2
[__utmz] => 120264590.1625144765.12.5.utmcsr=l.facebook.com|utmccn=(referral)|utmcmd=referral|utmcct=/
[_ga] => GA1.2.2142405146.1621409499
[__utmc] => 120264590
[__utma] => 120264590.2142405146.1621409499.1629910859.1629978516.31
[_gid] => GA1.2.1913990981.1630182229
[ci_session] => e27a1e9ce4d0ee37f9b6569bd8eb15ab77fe45b2
)
Unable to understand why print_r $_INPUT is not showing sent data. Can anyone help me to solve this issue?

Answer 1

You are not writing the ajax correctly, you are going to have to pass the parameter in the url
$(document).on('click','#showCont', function(){
var memID=$(this).attr('data-mem');
$data = {memID: memID};
//console.log($data);
$.ajax({
url: "<?=base_url();?>"+"/Member/getContact/" + "<?=$data?>",
headers: {'X-Requested-With': 'XMLHttpRequest'},
type: "GET",
cache: false,
success: function (cont) {
console.log(cont);
}
});
});
On the other hand if you are using codeigniter 4 csrf validation, the method cannot be POST, you will have to use GET.