(C# UWP/WinRT) Glacier Download Archive

Demonstrates how to download an Amazon Glacier archive. Downloading a Glacier archive is a two step process. First an archive retrieval job is initiated. After it completes, the job output is downloaded (i.e. the archive contents are downloaded.)

Note: This example requires Chilkat v9.5.0.78 or greater.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Chilkat.Rest rest = new Chilkat.Rest();

// Connect to the Amazon AWS REST server in the desired region.
bool bTls = true;
int port = 443;
bool bAutoReconnect = true;
bool success = await rest.ConnectAsync("glacier.us-west-2.amazonaws.com",port,bTls,bAutoReconnect);

// Provide AWS credentials.
Chilkat.AuthAws authAws = new Chilkat.AuthAws();
authAws.AccessKey = "AWS_ACCESS_KEY";
authAws.SecretKey = "AWS_SECRET_KEY";
authAws.ServiceName = "glacier";
authAws.Region = "us-west-2";

success = rest.SetAuthAws(authAws);

// --------------------------------------------------------------------------
// Note: The above REST connection and setup of the AWS credentials
// can be done once.  After connecting, any number of REST calls can be made.
// The "auto reconnect" property passed to rest.Connect indicates that if
// the connection is lost, a REST method call will automatically reconnect
// if needed.
// --------------------------------------------------------------------------

// 
// For more information, see Glacier Retrieve Job Output Reference Documentation
// 
rest.AddHeader("x-amz-glacier-version","2012-06-01");

// To download an archive, we'll make several method calls:
// 1) Send the HTTPS GET request.
// 2) Get the response body.
// 3) If the response status code indicates success, stream the response body (i.e the archive data) to a file.
// 4) If the response status code indicates an error, get the JSON error response.

// Send the GET request.
success = await rest.SendReqNoBodyAsync("GET","/AWS_ACCOUNT_ID/vaults/chilkat/jobs/JOB_ID/output");
if (success != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

// Read the response header.
int responseStatusCode = await rest.ReadResponseHeaderAsync();
if (responseStatusCode < 0) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

Debug.WriteLine("Response status code = " + Convert.ToString(responseStatusCode));

// We expect a 200 response status if the archive data is coming.
// Otherwise, we'll get a JSON response body with an error message(or no response body).
if (responseStatusCode == 200) {

    Chilkat.Stream bodyStream = new Chilkat.Stream();

    // The stream's sink will be a file.
    bodyStream.SinkFile = "qa_output/archiveData.dat";

    // Read the response body to the stream.
    success = await rest.ReadRespBodyStreamAsync(bodyStream,true);
    if (success != true) {
        Debug.WriteLine(rest.LastErrorText);
        return;
    }

    Debug.WriteLine("Successfully received the archive file.");

}
else {
    string jsonError = await rest.ReadRespBodyStringAsync();
    if (rest.LastMethodSuccess != true) {
        Debug.WriteLine(rest.LastErrorText);
    }
    else {
        Debug.WriteLine(jsonError);
    }

}