php - RESTful webservice Moodle 插件身份验证失败

Question

我正在为移动网络服务使用moodle rest插件，并且在本教程中，当我尝试测试网络服务时，我已经根据文档启用了rest API和其他相关服务，然后出现以下错误

{"exception":"moodle_exception","errorcode":"noauthheader","message":"No Authorization header found in request sent to Moodle"}

我有交叉检查moodle令牌甚至尝试新令牌但没有运气

这是我测试 php 代码来检查网络服务：

$curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => "mydomain.com/webservice/restful/server.php/core_course_get_courses",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => '{"options": {"ids":[2]}}',
  CURLOPT_HTTPHEADER => array(
    "accept: application/json",
    "authorization: {4838e6771cdbfd1eefbf37b3839587d9}",
    "cache-control: no-cache",
    "content-type: application/json",
  ),
));

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
} 

请让我知道，我做错了什么

谢谢