(JavaScript) Backblaze S3 List Bucket Objects

See more Backblaze S3 Examples

The Chilkat S3 functions in the HTTP class are compatible with the Backblaze service. However, because of some specific issues, Chilkat v9.5.0.89 or later is needed.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

var success = false;

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

var http = new CkHttp();

// keyID = Access Key ID or Access Key
http.AwsAccessKey = "access-key";

// applicationKey = Secret Access Key or Secret Key
http.AwsSecretKey = "secret-key";

// Region is the 2nd part of your S3 Endpoint
http.AwsEndpoint = "s3.us-west-002.backblazeb2.com";

var bucketName = "chilkat-test";

var strXml = http.S3_ListBucketObjects(bucketName);
if (http.LastMethodSuccess !== true) {
    console.log(http.LastErrorText);
    return;
}

console.log("Response status code = " + http.LastStatus);

var xml = new CkXml();
success = xml.LoadXml(strXml);
if (success !== true) {
    console.log(xml.LastErrorText);
    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.LastStatus !== 200) {
    console.log(xml.GetXml());
    console.log("Failed.");
    return;
}

// A sample response is shown below.
console.log(xml.GetXml());
console.log("----");

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

// <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
// <ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
//     <Contents>
//         <ETag>"303fb46cf341094fef6274b7789cd6aa"</ETag>
//         <Key>orchard.json</Key>
//         <LastModified>2021-10-30T14:45:52.000Z</LastModified>
//         <Owner>
//             <ID>f2ebbc5f792c</ID>
//             <DisplayName/>
//         </Owner>
//         <Size>22</Size>
//         <StorageClass>STANDARD</StorageClass>
//     </Contents>
//     <Contents>
//         <ETag>"a8551f0a5437f43a796fca7623ee9232"</ETag>
//         <Key>seahorse.jpg</Key>
//         <LastModified>2021-10-30T14:38:53.000Z</LastModified>
//         <Owner>
//             <ID>f2ebbc5f792c</ID>
//             <DisplayName/>
//         </Owner>
//         <Size>24388</Size>
//         <StorageClass>STANDARD</StorageClass>
//     </Contents>
//     <IsTruncated>false</IsTruncated>
//     <MaxKeys>1000</MaxKeys>
//     <Name>chilkat-test</Name>
//     <Prefix/>
//     <Marker/>
// </ListBucketResult>

var ETag;
var Key;
var LastModified;
var ID;
var SizeDecimalStr;
var StorageClass;

var ListBucketResult_xmlns = xml.GetAttrValue("xmlns");
var i = 0;
var count_i = xml.NumChildrenHavingTag("Contents");
while (i < count_i) {
    xml.I = i;
    ETag = xml.GetChildContent("Contents[i]|ETag");
    Key = xml.GetChildContent("Contents[i]|Key");
    LastModified = xml.GetChildContent("Contents[i]|LastModified");
    ID = xml.GetChildContent("Contents[i]|Owner|ID");
    SizeDecimalStr = xml.GetChildContent("Contents[i]|Size");
    StorageClass = xml.GetChildContent("Contents[i]|StorageClass");
    i = i+1;
}

var IsTruncated = xml.GetChildContent("IsTruncated");
var MaxKeys = xml.GetChildIntValue("MaxKeys");
var Name = xml.GetChildContent("Name");