调用Instagram Basic Display API遇「不支持请求方法类型」错误求助

我正在使用Instagram Basic Display API，近几日一直收到「Unsupported request - method type」错误。我的应用已上线并通过Meta验证多年，此前运行正常。

无论是生产环境的代码，还是用Postman通过有效令牌发起的原生cURL请求，都会返回相同的错误。

获取长生命周期用户访问令牌的代码示例 #

$params = [
      'endpoint_url' => 'https://graph.instagram.com/access_token',
      'type' => 'GET',
      'url_params' => [
        'grant_type' => 'ig_exchange_token',
        'client_secret' => $this->_appSecret,
        'access_token' => $this->_userAccessToken
      ]
    ];

$ch = curl_init();
$endpoint = $params['endpoint_url'];

if ('POST' == $params['type']) { // post
  curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($params['url_params']));
  curl_setopt($ch, CURLOPT_POST, 1);
} elseif ('GET' == $params['type'] && !$params['url_params']['paging']) { // get
  $params['url_params']['access_token'] = $this->_userAccessToken;

  // add params to endpoint
  $endpoint .= '?' . http_build_query($params['url_params']);
}

curl_setopt($ch, CURLOPT_URL, $endpoint);

curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$response = curl_exec($ch);

curl_close($ch);

$responseArray = json_decode($response, true);

if (isset($responseArray['error_type'])) {
  var_dump($responseArray);
  die();
} else {
  return $responseArray;
}

测试用的简单cURL请求 #

curl -X GET https://graph.instagram.com/me?fields=id,username&access_token={VALID_TOKEN}

返回的错误信息 #

{
    "error": {
        "message": "Unsupported request - method type: get",
        "type": "IGApiException",
        "code": 100,
        "fbtrace_id": "A32uEK5vFtH166PBEaDxkAO"
    }
}

内容的提问来源于stack exchange，提问作者David