Laravel AJAX POST request is empty
When I pass POST data through AJAX to my controller it is empty. In the AJAX the data is still there but after I send it the controller it says it is empty.
AJAX:
function usernameCheck()
{
var input = document.getElementById("usernameInput");
var icon = document.getElementById("userIcon");
var xmlhttp,
username = document.getElementById("usernameInput"),
message = document.getElementById("usernameMessage");
if (username.value != "") {
if (window.XMLHttpRequest) {
// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
} else {
// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState==4 && xmlhttp.status==200) {
// FOR DEBUGGING
console.log(xmlhttp.responseText);
}
}
}
xmlhttp.open("POST", "usernamevalidation", true);
xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
xmlhttp.send("username=" + username.value);
}
}
Routes.php:
Route::post('usernamevalidation', 'UserController@validateUsername');
UserController.php:
class UserController extends BaseController {
public function validateUsername() {
// FOR DEBUGGING
dd(Input::all());
}
}
The code that I console.logged (which is empty and should contain the username):
<pre class='xdebug-var-dump' dir='ltr'>
<b>array</b> <i>(size=0)</i>
<i><font color='#888a85'>empty</font></i>
</pre>
In the awareness that I'm giving my answer here one year later since the last comment, I've stumbled on the some error using Laravel 5.2 and working with XMLHttpRequest objects: finally I ended to analyze and compare post request headers, which led me to simply setting both:
xmlhttp.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
xmlhttp.setRequestHeader('Content-type', 'application/x-www-form-urlencoded; charset=UTF-8');
That solved my empty responseText . Hope this can help someone else or can be used for future reference.
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