无法创建会话客户端对话流

Question

I'm trying to set up Dialogflow on a php backend. According to the documentation: https://googleapis.dev/nodejs/dialogflow/latest/v2beta1.SessionsClient.html

I should be able to pass as a parameter the path of the json key file I previously generated with the Google Cloud Console to access DialogFlow's API.

$path = dirname(__DIR__, 2) . '\_________-_______-____________.json';
$config = [
  'keyFilename' => $path,
];
$sessionsClient = new SessionsClient($config);

I keep getting this error: Could not construct ApplicationDefaultCredentials

I double checked the path using the file_get_contents method, it's valid.

Any idea ?

Answer 1

Something is wrong with the doc.

Using the key credentials instead of keyFilename did the work.