Error 403

[gabselbach]

Hello!
I'm trying to run the basic code on the page https://cloud.google.com/natural-language/docs/reference/libraries#client-libraries-install-php, but the following error is displayed :

Uncaught Google\Cloud\Core\Exception\ServiceException: { "error": { "code": 403, "message": "The request is missing a valid API key.", "status": "PERMISSION_DENIED" } } in /home/gabriella/Documents/programacao/pesquisa/vendor/google/cloud/Core/src/RequestWrapper.php:336 Stack trace: #0 /home/gabriella/Documents/programacao/pesquisa/vendor/google/cloud/Core/src/RequestWrapper.php(189): Google\Cloud\Core\RequestWrapper->convertToGoogleException(Object(GuzzleHttp\Exception\ClientException)) #1 /home/gabriella/Documents/programacao/pesquisa/vendor/google/cloud/Core/src/RestTrait.php(95): Google\Cloud\Core\RequestWrapper->send(Object(GuzzleHttp\Psr7\Request), Array) #2 /home/gabriella/Documents/programacao/pesquisa/vendor/google/cloud/Language/src/Connection/Rest.php(69): Google\Cloud\Language\Connection\Rest->send('documents', 'analyzeSentimen...', Array) #3 /home/gabriella/Documents/programacao/pesquisa/vendor/google/cloud/Language/src/LanguageClient.php(220): Google\Cloud\Language\Connection\Re in /home/gabriella/Documents/programacao/pesquisa/vendor/google/cloud/Core/src/RequestWrapper.php on line 336.

[bshaffer]

You must have missed the authentication step in the quickstart. YOu need to download a set of service account credentials and then set the environment variable GOOGLE_APPLICATION_CREDENTIALS to the path to those credentials on your filesystem:

export GOOGLE_APPLICATION_CREDENTIALS=/path/to/service-account-credentials.json

The instructions to do this are at the top of the quickstart.