v3: translateText fails after getSupportedLanguages using ADC

Environment details

• OS: macOS
• Node.js version: 14.12.0
• npm version: 6.14.8
• @google-cloud/translate version: 6.0.3

Steps to reproduce

1. Login with ADC: gcloud auth application-default login
2. Install @google-cloud/translate with npm or yarn
3. Run the below script: node script.js
4. Check the output (also attached mine below)
5. Notice that the first call works.translateText succeeds, but when calling fails.getSupportedLanguages and then fails.translateText it fails.

const { TranslationServiceClient } = require('@google-cloud/translate')

async function test() {
   const translateOpts = {
      contents: ['Hello'],
      targetLanguageCode: 'fr',
   }

   try {
      const works = new TranslationServiceClient()
      const parent = `projects/${await works.getProjectId()}`
      const [translation] = await works.translateText({
         parent,
         ...translateOpts,
      })
      console.info('[works] Translation succeeded:', translation)
   } catch (ex) {
      console.error('[works] Translation failed:', ex.message || ex)
   }

   try {
      const fails = new TranslationServiceClient()
      const parent = `projects/${await fails.getProjectId()}`
      const [langs] = await fails.getSupportedLanguages({ parent })
      console.info('[fails] Fetched supported languages:', langs.languages.length)
      const [translation] = await fails.translateText({
         parent,
         ...translateOpts,
      })
      console.info('[fails] Translation succeeded:', translation)
   } catch (ex) {
      console.error('[fails] Translation failed:', ex.message || ex)
   }
}

test()

Output for me:

$ node translate-repo.js
[works] Translation succeeded: {
  translations: [
    {
      translatedText: 'Bonjour',
      model: '',
      glossaryConfig: null,
      detectedLanguageCode: 'en'
    }
  ],
  glossaryTranslations: []
}
[fails] Fetched supported languages: 111
[fails] Translation failed: 7 PERMISSION_DENIED: Your application has authenticated using end user credentials from the Google Cloud SDK or Google Cloud Shell which are not supported by the translate.googleapis.com. We recommend configuring the billing/quota_project setting in gcloud or using a service account through the auth/impersonate_service_account setting. For more information about service accounts and how to use them in your application, see https://cloud.google.com/docs/authentication/.

[rhodgkins]

🤷‍♂️ not sure then I’m afraid, can’t reproduce with 6.1.0 anyway so maybe it was fixed in a dependency down the line… Thanks for looking into it anyway!

[rhodgkins]

I’ll try reproducing again tomorrow, but have you tried that node version?

May i ask why are you using two different instances of translateServiceClient?

To reproduce the issue. Otherwise calling translateText would cause things to work. In production, just the second (failing) case is being used.