Google Cloud API - Application Default Credentials

Question

I have the following code, modified from Google\'s documentation:

        $GOOGLE_APPLICATION_CREDENTIALS = \"./[path].json\";
        $_ENV[\"GOOGLE_APPLICATION         


        

Answer 1

Attempt to use the ImageAnnotator like below When running the code, observe that you get an error: Could not construct ApplicationDefaultCredentials

solution

putenv("GOOGLE_APPLICATION_CREDENTIALS=/home/netwons/Downloads/AIz.json");

but not work. OS: Ubuntu PHP version: 7.2.4 Package name and version: google/cloud-vision 0.19.1 this is code

$imageAnnotator = new ImageAnnotatorClient();
//        $client->setAuthConfig('key.json');

        # the name of the image file to annotate
        $fileName = '2.png';

        # prepare the image to be annotated
        $image = file_get_contents($fileName);

        # performs label detection on the image file
        $response = $imageAnnotator->labelDetection($image);
        $labels = $response->getLabelAnnotations();

        if ($labels) {
            echo("Labels:" . PHP_EOL);
            foreach ($labels as $label) {
                echo($label->getDescription() . PHP_EOL);
            }
        } else {
            echo('No label found' . PHP_EOL);
        }