CODEWITHSUNDEEP
c#asp.netauthenticationgoogle-cloud-platformgoogle-translate
Nicoara Talpes
Nicoara Talpes

Reputation: 720

asp C# Application Default Credentials are not available

I am running Google Translate API in C#. Running locally on my computer the next code works, but online on a server it throws the following error:

using Google.Cloud.Translation.V2;
TranslationClient client = TranslationClient.Create();
var response = client.TranslateText(sentence, targetLanguage, sourceLanguage: sourceLanguage);

"The Application Default Credentials are not available. They are available if running in Google Compute Engine. Otherwise, the environment variable GOOGLE_APPLICATION_CREDENTIALS must be defined pointing to a file defining the credentials. See https://developers.google.com/accounts/docs/application-default-credentials for more information."

Locally this runs just by installing Cloud SDK Installer which does all the settings, there is no need for authentication in code. On the server, should I use instead OAuth 2.0 or Service account keys ?

Can someone assist me on how to solve this?

EDIT: Can someone confirm to me if it is necessary to have access to the local server to run commands in command line like here https://cloud.google.com/storage/docs/authentication ? This would be pretty ridiculous, instead of just writing code. For example Youtube API does not require local access.

Upvotes: 12

Views: 14345

Answers (5)

live-love
live-love

Reputation: 52416

Follow directions to get json file:

https://cloud.google.com/translate/docs/reference/libraries

Then run this code first:

System.Environment.SetEnvironmentVariable("GOOGLE_APPLICATION_CREDENTIALS", "c:\mypath\myfile.json");

Upvotes: 33

Amr
Amr

Reputation: 76

To generate a private key in JSON or PKCS12 format:

  1. Open the list of credentials in the Google Cloud Platform Console. OPEN THE LIST OF CREDENTIALS
  2. Click Create credentials.
  3. Select Service account key. A Create service account key window opens.
  4. Click the drop-down box below Service account, then click New service account.
  5. Enter a name for the service account in Name.
  6. Use the default Service account ID or generate a different one.
  7. Select the Key type: JSON or P12.
  8. Click Create. A Service account created window is displayed and the private key for the Key type you selected is downloaded automatically. If you selected a P12 key, the private key's password ("notasecret") is displayed.
  9. Click Close.

You can find more details here https://cloud.google.com/storage/docs/authentication

Upvotes: 4

Nicoara Talpes
Nicoara Talpes

Reputation: 720

The easiest answer to my question , to avoid local settings on the server, is the third option of using the Translation API described below: using API keys. This means just a simple POST to an endpoint that has the API key in the link.

https://cloud.google.com/docs/authentication/#getting_credentials_for_server-centric_flow https://cloud.google.com/docs/authentication/api-keys

Upvotes: 1

Amr
Amr

Reputation: 76

You must download API key from

https://console.developers.google.com/iam-admin/serviceaccounts After that download .P12 file file to use it in your code

var certificate = new X509Certificate2(@"key3.p12", "notasecret", X509KeyStorageFlags.Exportable); notasecret is default password

Upvotes: 1

MatzeBrei
MatzeBrei

Reputation: 63

Its all in the errormessage. You have two options

  • Run the Google Compute Engine on the machine you have your program running on and input your credentials there.

  • Use a service account and set the "GOOGLE_APPLICATION_CREDENTIALS" environment variable to reference your credentials file (which is a .json file that you can download from the google developer console.)

PS: Do not store your credentials file anywhere on the server where it may be accessed by someone else!

Upvotes: 1

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