CODEWITHSUNDEEP
c#.netamazon-web-servicesamazon-cloudfront
Alexo
Alexo

Reputation: 31

How do you get a list of Invalidation Requests from the Amazon Cloudfront .NET API?

I've referenced this section in the API documentation, but I'm not sure if the request I'm sending out via the API is correct. This is what my code looks like:

public class CfListInvalidation
{
    string accessKeyID = ConfigurationManager.AppSettings["awsAccessID"];
    string secretAccessKeyID = ConfigurationManager.AppSettings["awsSecretAnswer"];
    string distributionId = ConfigurationManager.AppSettings["distributionId"];
    AmazonCloudFront client;

    public void SendCommand()
    {

        Console.WriteLine("Connecting to Amazon Cloud Front...");   

        using (client = AWSClientFactory.CreateAmazonCloudFrontClient(accessKeyID, secretAccessKeyID))
        {
            ListInvalidationsResult result = new ListInvalidationsResult();

            IAsyncResult r = client.BeginListInvalidations(new ListInvalidationsRequest
            {
                DistributionId = distributionId,                                        
            }, new AsyncCallback(CfListInvalidation.CompleteRead), result );                

        }
    }

    static void CompleteRead(IAsyncResult result)
    {
        ListInvalidationsResult r = result.AsyncState as ListInvalidationsResult;

        if (r != null && r.InvalidationList != null)
        {
            Console.WriteLine("listing items..");

            foreach (InvalidationSummary s in r.InvalidationList.Items)
            {
                Console.WriteLine(string.Format("ID: {0} - Status: {1}", s.Id, s.Status));
            }
        }

        else {
            Console.WriteLine("No Items Found");
        }
    }
}

Am I doing something wrong?

Upvotes: 1

Views: 393

Answers (1)

Pavel Safronov
Pavel Safronov

Reputation: 1286

When using Begin* methods, you need to call the matching End* method to complete the request and retrieve the result object. Take a look at this guide for a number of examples.

Here's a simplified sample from the guide that illustrates the basic approach:

// Begin method
client.BeginPutObject(request, CallbackWithClient, client);

// Callback
public static void CallbackWithClient(IAsyncResult asyncResult)
{
  AmazonS3Client s3Client = (AmazonS3Client) asyncResult.AsyncState;
  PutObjectResponse response = s3Client.EndPutObject(asyncResult);

  // Process the response
}

Upvotes: 1

Related Questions