Rust

Wasabi List Bucket Objects

See more Wasabi Examples

Demonstrates how to download and parse XML for the list of objects in a bucket. Rust

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

let http = chilkat::Http::new();

// Insert your access key here:
http.set_aws_access_key("access-key");

// Insert your secret key here:
http.set_aws_secret_key("secret-key");

// Use the endpoint matching the bucket's region.
http.set_aws_endpoint("s3.us-west-1.wasabisys.com");

let bucket_name = "chilkattest".to_string();

let Ok(str_xml) = http.s3_list_bucket_objects(&bucket_name) else {
    println!("{}", http.last_error_text());
    return;
};

println!("Response status code = {}", http.last_status());

let xml = chilkat::Xml::new();
if xml.load_xml(&str_xml).is_err() {
    println!("{}", xml.last_error_text());
    return;
}

// If the response status code was not 200, then the XML response is not a 
// listing of objects, but instead contains error information.
if http.last_status() != 200 {
    println!("{}", xml.get_xml().unwrap_or_default());
    println!("Failed.");
    return;
}

// A sample response is shown below.
println!("{}", xml.get_xml().unwrap_or_default());
println!("----");

// Use this online tool to generate parsing code from sample XML: 
// Generate Parsing Code from XML

// <?xml version="1.0" encoding="UTF-8"?>
// <ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
//     <Name>chilkattest</Name>
//     <Prefix/>
//     <Marker/>
//     <MaxKeys>1000</MaxKeys>
//     <IsTruncated>false</IsTruncated>
//     <Contents>
//         <Key>orchard.json</Key>
//         <LastModified>2021-10-27T22:58:49.000Z</LastModified>
//         <ETag>&quot;303fb46cf341094fef6274b7789cd6aa&quot;</ETag>
//         <Size>22</Size>
//         <Owner>
//             <ID>1039F31570DBC320E89D391632FCA06FE6D10CBB2ADBD0BF6439BB1DA0C3FAD6</ID>
//             <DisplayName>admin</DisplayName>
//         </Owner>
//         <StorageClass>STANDARD</StorageClass>
//     </Contents>
//     <Contents>
//         <Key>seahorse.jpg</Key>
//         <LastModified>2021-10-27T22:35:29.000Z</LastModified>
//         <ETag>&quot;a8551f0a5437f43a796fca7623ee9232&quot;</ETag>
//         <Size>24388</Size>
//         <Owner>
//             <ID>1039F31570DBC320E89D391632FCA06FE6D10CBB2ADBD0BF6439BB1DA0C3FAD6</ID>
//             <DisplayName>admin</DisplayName>
//         </Owner>
//         <StorageClass>STANDARD</StorageClass>
//     </Contents>
//     <Contents>
//         <Key>seahorse2.jpg</Key>
//         <LastModified>2021-10-27T22:03:51.000Z</LastModified>
//         <ETag>&quot;a8551f0a5437f43a796fca7623ee9232&quot;</ETag>
//         <Size>24388</Size>
//         <Owner>
//             <ID>1039F31570DBC320E89D391632FCA06FE6D10CBB2ADBD0BF6439BB1DA0C3FAD6</ID>
//             <DisplayName>admin</DisplayName>
//         </Owner>
//         <StorageClass>STANDARD</StorageClass>
//     </Contents>
// </ListBucketResult>

let mut key = String::new();

let list_bucket_result_xmlns = xml.get_attr_value("xmlns").unwrap_or_default();
let name = xml.get_child_content("Name").unwrap_or_default();
let max_keys = xml.get_child_int_value("MaxKeys");
let is_truncated = xml.get_child_content("IsTruncated").unwrap_or_default();
let mut i = 0;
let count_i = xml.num_children_having_tag("Contents");
while i < count_i {
    xml.set_i(i);
    key = xml.get_child_content("Contents[i]|Key").unwrap_or_default();
    let _ = xml.get_child_content("Contents[i]|LastModified").unwrap_or_default();
    let _ = xml.get_child_content("Contents[i]|ETag").unwrap_or_default();
    let _ = xml.get_child_content("Contents[i]|Size").unwrap_or_default();
    let _ = xml.get_child_content("Contents[i]|Owner|ID").unwrap_or_default();
    let _ = xml.get_child_content("Contents[i]|Owner|DisplayName").unwrap_or_default();
    let _ = xml.get_child_content("Contents[i]|StorageClass").unwrap_or_default();
    println!("{}: {}", i, key);
    i = i + 1;
}