(CkPython) 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 Python Downloads install with pip pip3 install chilkat or download... Python Module for Windows, MacOS, Linux, Alpine Linux, Solaris

import sys
import chilkat

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

http = chilkat.CkHttp()

# 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())
    sys.exit()

print("Response status code = " + str(http.get_LastStatus()))

xml = chilkat.CkXml()
success = xml.LoadXml(strXml)
if (success != True):
    print(xml.lastErrorText())
    sys.exit()

# 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())
    print("Failed.")
    sys.exit()

# A sample response is shown below.
print(xml.getXml())
print("----")

# 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

IsTruncated = xml.getChildContent("IsTruncated")
MaxKeys = xml.GetChildIntValue("MaxKeys")
Name = xml.getChildContent("Name")