Rust

Glacier Download Archive

See more Amazon Glacier Examples

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.

Rust

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

let rest = chilkat::Rest::new();

// Connect to the Amazon AWS REST server in the desired region.
let b_tls = true;
let port = 443;
let b_auto_reconnect = true;
let _ = rest.connect("glacier.us-west-2.amazonaws.com", port, b_tls, b_auto_reconnect).is_ok();

// Provide AWS credentials.
let auth_aws = chilkat::AuthAws::new();
auth_aws.set_access_key("AWS_ACCESS_KEY");
auth_aws.set_secret_key("AWS_SECRET_KEY");
auth_aws.set_service_name("glacier");
auth_aws.set_region("us-west-2");

let _ = rest.set_auth_aws(&auth_aws).is_ok();

// --------------------------------------------------------------------------
// 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
// 
let _ = rest.add_header("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.
if rest.send_req_no_body("GET", "/AWS_ACCOUNT_ID/vaults/chilkat/jobs/JOB_ID/output").is_err() {
    println!("{}", rest.last_error_text());
    return;
}

// Read the response header.
let response_status_code = rest.read_response_header();
if response_status_code < 0 {
    println!("{}", rest.last_error_text());
    return;
}

println!("Response status code = {}", response_status_code);

// 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 response_status_code == 200 {

    let body_stream = chilkat::Stream::new();

    // The stream's sink will be a file.
    body_stream.set_sink_file("qa_output/archiveData.dat");

    // Read the response body to the stream.
    if rest.read_resp_body_stream(&body_stream, true).is_err() {
        println!("{}", rest.last_error_text());
        return;
    }

    println!("Successfully received the archive file.");

} else {
    let json_error = rest.read_resp_body_string().unwrap_or_default();
    if !rest.last_method_success() {
        println!("{}", rest.last_error_text());
    } else {
        println!("{}", json_error);
    }

}