CkPython

Amazon Glacier Upload Archive from In-Memory Data

See more Amazon Glacier Examples

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

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

CkPython

import sys
import chilkat

success = False

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

rest = chilkat.CkRest()

# 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 = chilkat.CkAuthAws()
authAws.put_AccessKey("AWS_ACCESS_KEY")
authAws.put_SecretKey("AWS_SECRET_KEY")
authAws.put_ServiceName("glacier")
authAws.put_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 = chilkat.CkBinData()
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 = chilkat.CkCrypt2()
crypt.put_HashAlgorithm("sha256-tree-hash")
crypt.put_EncodingMode("hexlower")
treeHashHex = crypt.hashBdENC(bd)
rest.AddHeader("x-amz-sha256-tree-hash",treeHashHex)

crypt.put_HashAlgorithm("sha256")
linearHashHex = crypt.hashBdENC(bd)
authAws.put_PrecomputedSha256(linearHashHex)

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

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

respStatusCode = rest.get_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)