CODEWITHSUNDEEP
c#.netgoogle-cloud-platform
Nick Ambrose
Nick Ambrose

Reputation: 23

Refresh token for Google Storage Client

I must be stupid I think. Using OAuth.

Have the following piece of code

// Authenticate with Google            
        using (MemoryStream stream =
            new MemoryStream(GetSecrets()))
        {
            string credPath = "token.json";
            this.userCredential = GoogleWebAuthorizationBroker.AuthorizeAsync(
                GoogleClientSecrets.Load(stream).Secrets,
                scopes,
                "user",
                CancellationToken.None,
                new FileDataStore(credPath, true)).Result;
            Console.WriteLine("Credential file saved to: " + credPath);
        }

Works fine and sets this.userCredential as expected

Now I want to create a StorageClient

But StorageClient cannot be created directly from UserCredential.

The only way I can see is to create from the AccessToken

GoogleCredential googleCredential = GoogleCredential.FromAccessToken(this.userCredential.Token.AccessToken);                                        
        return StorageClient.Create(googleCredential);

Problem is this token expires after an hour.

However, in C# I cannot for the life of me find a way to pass in the refresh token (which I have in the UserCredential) and have it refresh itself as needed

It seems possible in Java though, using the .Builder

Does anyone know if this is possible ?

Upvotes: 2

Views: 391

Answers (1)

Jon Skeet
Jon Skeet

Reputation: 1502526

The simplest way of achieving this is to create the StorageService yourself, and then pass that to the StorageClientImpl constructor:

var service = new StorageService(new BaseClientService.Initializer
{
    HttpClientInitializer = userCredential,
    ApplicationName = StorageClientImpl.ApplicationName,
});

StorageClient client = new StorageClientImpl(service);

We might consider adding an overload of Create that takes an IConfigurableHttpClientInitializer instead of a GoogleCredential, in the future.

Upvotes: 3

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