(Chilkat2-Python) Amazon Glacier Upload Archive from In-Memory Data

Demonstrates how to add an archive to a vault from data in memory.

Note: This example requires Chilkat v9.5.0.78 or greater.

Chilkat2 Python Downloads install with pip pip3 install chilkat2 or download... Python Module for Windows, Linux, Alpine Linux, MacOS, Solaris

import sys
import chilkat2

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

rest = chilkat2.Rest()

# Connect to the Amazon AWS REST server in the desired region.
bTls = True
port = 443
bAutoReconnect = True
success = rest.Connect("glacier.us-west-2.amazonaws.com",port,bTls,bAutoReconnect)

# Provide AWS credentials.
authAws = chilkat2.AuthAws()
authAws.AccessKey = "AWS_ACCESS_KEY"
authAws.SecretKey = "AWS_SECRET_KEY"
authAws.ServiceName = "glacier"
authAws.Region = "us-west-2"

success = rest.SetAuthAws(authAws)

# --------------------------------------------------------------------------
# Note: The above REST connection and setup of the AWS credentials
# can be done once.  After connecting, any number of REST calls can be made.
# The "auto reconnect" property passed to rest.Connect indicates that if
# the connection is lost, a REST method call will automatically reconnect
# if needed.
# --------------------------------------------------------------------------

# Load the data to be uploaded.
bd = chilkat2.BinData()
success = bd.LoadFile("qa_data/jpg/penguins.jpg")
# (The point here is that the contents of the bd don't necessarily have to come from a file.)

# 
# For more information, see Glacier Upload Archive Reference Documentation
# 
rest.AddHeader("x-amz-glacier-version","2012-06-01")

# We'll need to pre-compute the SHA256 tree hash and the SHA256 linear hash.
# The hashes are added in the following request headers:

# x-amz-sha256-tree-hash: SHA256 tree hash
# x-amz-content-sha256: SHA256 linear hash

crypt = chilkat2.Crypt2()
crypt.HashAlgorithm = "sha256-tree-hash"
crypt.EncodingMode = "hexlower"
treeHashHex = crypt.HashBdENC(bd)
rest.AddHeader("x-amz-sha256-tree-hash",treeHashHex)

crypt.HashAlgorithm = "sha256"
linearHashHex = crypt.HashBdENC(bd)
authAws.PrecomputedSha256 = linearHashHex

# We can optionally add a description
rest.AddHeader("x-amz-archive-description","Penguins JPG")

sbResponseBody = chilkat2.StringBuilder()
success = rest.FullRequestBd("POST","/AWS_ACCOUNT_ID/vaults/chilkat/archives",bd,sbResponseBody)
if (success != True):
    print(rest.LastErrorText)
    sys.exit()

respStatusCode = rest.ResponseStatusCode
if (respStatusCode >= 400):
    print("Response Status Code = " + str(respStatusCode))
    print("Response Header:")
    print(rest.ResponseHeader)
    print("Response Body:")
    print(sbResponseBody.GetAsString())
    sys.exit()

# Success is indicated by a 201 response status with an empty response body.
print("response status code = " + str(respStatusCode))

# If successful, the response header looks like this.
# The Location and x-amz-archive-id are two items of information we may wish to save..

# HTTP/1.1 201 Created
# x-amzn-RequestId: AAABZpJrTyioDC_HsOmHae8EZp_uBSJr6cnGOLKp_XJCl-Q
# Date: Wed, 10 Feb 2017 12:00:00 GMT
# x-amz-sha256-tree-hash: beb0fe31a1c7ca8c6c04d574ea906e3f97b31fdca7571defb5b44dca89b5af60
# Location: /111122223333/vaults/examplevault/archives/NkbByEejwEggmBz2fTH ... GlqrEXAMPLEArchiveId
# x-amz-archive-id: NkbByEejwEggmBz2fTHgJrg0XBoDfjP4q6iu87-TjhqG6eGoOY9Z8i1_AUyUsu ... BfGlqrEXAMPLEArchiveId
# 

archiveId = rest.ResponseHdrByName("x-amz-archive-id")
print("x-amz-archive-id = " + archiveId)

location = rest.ResponseHdrByName("Location")
print("Location = " + location)