Node.js

Backblaze S3 List Bucket Objects

See more Backblaze S3 Examples

Demonstrates how to list the objects in a bucket.

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.

Node.js

NODEJS_PRELUDE

function chilkatExample() {

    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 chilkat.Http();

    // 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 chilkat.Xml();
    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");

}

chilkatExample();