(Ruby) 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.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

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

http = Chilkat::CkHttp.new()

# keyID = Access Key ID or Access Key
http.put_AwsAccessKey("access-key")

# applicationKey = Secret Access Key or Secret Key
http.put_AwsSecretKey("secret-key")

# Region is the 2nd part of your S3 Endpoint
http.put_AwsEndpoint("s3.us-west-002.backblazeb2.com")

bucketName = "chilkat-test"

strXml = http.s3_ListBucketObjects(bucketName)
if (http.get_LastMethodSuccess() != true)
    print http.lastErrorText() + "\n";
    exit
end

print "Response status code = " + http.get_LastStatus().to_s() + "\n";

xml = Chilkat::CkXml.new()
success = xml.LoadXml(strXml)
if (success != true)
    print xml.lastErrorText() + "\n";
    exit
end

# 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.get_LastStatus() != 200)
    print xml.getXml() + "\n";
    print "Failed." + "\n";
    exit
end

# A sample response is shown below.
print xml.getXml() + "\n";
print "----" + "\n";

# 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>

ListBucketResult_xmlns = xml.getAttrValue("xmlns")
i = 0
count_i = xml.NumChildrenHavingTag("Contents")
while i < count_i
    xml.put_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
end
IsTruncated = xml.getChildContent("IsTruncated")
MaxKeys = xml.GetChildIntValue("MaxKeys")
Name = xml.getChildContent("Name")