diff --git a/index.php b/index.php
index 87b3db2..670c3dc 100644
--- a/index.php
+++ b/index.php
@@ -7,6 +7,7 @@
 define('ACCESS_TOKEN', 'at_bsef');
 define('REGISTRATION_PASSWORD', 'asef');
 define('REGISTRATION_API_URL', 'http://synapse:8008/_synapse/admin/v1/register');
+define('EVENT_API_URL', 'http://synapse:8008/_matrix/client/v3/rooms/{roomId}/send/{eventType}/{txnId}')
 if ($_GET['secret'] === REGISTRATION_PASSWORD) {
 ?>
 
@@ -28,11 +29,20 @@ if ($_GET['secret'] === REGISTRATION_PASSWORD) {
     $username = filter_var($_POST['username'], FILTER_SANITIZE_FULL_SPECIAL_CHARS);
     var_dump($_POST);
 
+    $content = [
+        nonce => $_POST['nonce'],
+        username => $_POST['username'],
+        password => $_POST['password']
+        admin = false
+    ];
+    $content->mac = hash_hmac('sha1', $content->nonce."\s".$content->username."\s".$content->password."\s".$content->admin
+
     $options = [
         'http' => [
             'method' => 'POST',
             'header' => 'authorization: Bearer '.ACCESS_TOKEN,
-                        'content-type: application/json'
+                        'content-type: application/json',
+            'content' => json_encode($content);
         ]
     ];
     $context = stream_context_create($options);
@@ -59,14 +69,6 @@ Also consider using a password manager.<br>
 <?php
     }
 
-    $content = [
-        nonce => $_POST['nonce'],
-        username => $_POST['username'],
-        password => $_POST['password']
-        admin = false
-    ];
-    $content->mac = hash_hmac('sha1', $content->nonce."\s".$content->username."\s".$content->password."\s".$content->admin
-
     $options = [
         'http' => [
             'method' => 'POST',
@@ -76,8 +78,8 @@ Also consider using a password manager.<br>
         ]
     ];
     $context = stream_context_create($options);
-    $result = file_get_contents(REGISTRATION_API_URL, false, $context);
-    if ($result === FALSE) {
+    $message = file_get_contents(EVENT_API_URL, false, $context);
+    if ($message === FALSE) {
         # something with errors
     } else {
         # success