Rust

Amazon Glacier Upload Archive from In-Memory Data

See more Amazon Glacier Examples

Demonstrates how to add an archive to a vault from data in memory.

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.
// --------------------------------------------------------------------------

// Load the data to be uploaded.
let bd = chilkat::BinData::new();
let _ = bd.load_file("qa_data/jpg/penguins.jpg").is_ok();
// (The point here is that the contents of the bd don't necessarily have to come from a file.)

// For more information, see Glacier Upload Archive Reference Documentation
// 
let _ = rest.add_header("x-amz-glacier-version", "2012-06-01");

// We'll need to pre-compute the SHA256 tree hash and the SHA256 linear hash.
// The hashes are added in the following request headers:

// x-amz-sha256-tree-hash: SHA256 tree hash
// x-amz-content-sha256: SHA256 linear hash

let crypt = chilkat::Crypt2::new();
crypt.set_hash_algorithm("sha256-tree-hash");
crypt.set_encoding_mode("hexlower");
let tree_hash_hex = crypt.hash_bd_enc(&bd).unwrap_or_default();
let _ = rest.add_header("x-amz-sha256-tree-hash", &tree_hash_hex);

crypt.set_hash_algorithm("sha256");
let linear_hash_hex = crypt.hash_bd_enc(&bd).unwrap_or_default();
auth_aws.set_precomputed_sha256(&linear_hash_hex);

// We can optionally add a description
let _ = rest.add_header("x-amz-archive-description", "Penguins JPG");

let sb_response_body = chilkat::StringBuilder::new();
if rest.full_request_bd("POST", "/AWS_ACCOUNT_ID/vaults/chilkat/archives", &bd, &sb_response_body).is_err() {
    println!("{}", rest.last_error_text());
    return;
}

let resp_status_code = rest.response_status_code();
if resp_status_code >= 400 {
    println!("Response Status Code = {}", resp_status_code);
    println!("Response Header:");
    println!("{}", rest.response_header());
    println!("Response Body:");
    println!("{}", sb_response_body.get_as_string().unwrap_or_default());
    return;
}

// Success is indicated by a 201 response status with an empty response body.
println!("response status code = {}", resp_status_code);

// If successful, the response header looks like this.
// The Location and x-amz-archive-id are two items of information we may wish to save..

// HTTP/1.1 201 Created
// x-amzn-RequestId: AAABZpJrTyioDC_HsOmHae8EZp_uBSJr6cnGOLKp_XJCl-Q
// Date: Wed, 10 Feb 2017 12:00:00 GMT
// x-amz-sha256-tree-hash: beb0fe31a1c7ca8c6c04d574ea906e3f97b31fdca7571defb5b44dca89b5af60
// Location: /111122223333/vaults/examplevault/archives/NkbByEejwEggmBz2fTH ... GlqrEXAMPLEArchiveId
// x-amz-archive-id: NkbByEejwEggmBz2fTHgJrg0XBoDfjP4q6iu87-TjhqG6eGoOY9Z8i1_AUyUsu ... BfGlqrEXAMPLEArchiveId
// 

let archive_id = rest.response_hdr_by_name("x-amz-archive-id").unwrap_or_default();
println!("x-amz-archive-id = {}", archive_id);

let location = rest.response_hdr_by_name("Location").unwrap_or_default();
println!("Location = {}", location);