Chilkat Online Tools

ListChangedBlocks Powershell Example

Amazon Elastic Block Store

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

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

$rest = New-Object Chilkat.Rest

$authAws = New-Object Chilkat.AuthAws
$authAws.AccessKey = "AWS_ACCESS_KEY"
$authAws.SecretKey = "AWS_SECRET_KEY"

# Don't forget to change the region to your particular region. (Also make the same change in the call to Connect below.)
$authAws.Region = "us-west-2"
$authAws.ServiceName = "ebs"
# SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
$rest.SetAuthAws($authAws)

# URL: https://ebs.us-west-2.amazonaws.com/
# Use the same region as specified above.
$success = $rest.Connect("ebs.us-west-2.amazonaws.com",443,$true,$true)
if ($success -ne $true) {
    $("ConnectFailReason: " + $rest.ConnectFailReason)
    $($rest.LastErrorText)
    exit
}

$rest.AddHeader("Content-Type","application/x-amz-json-1.1")
$rest.AddHeader("X-Amz-Target","ListChangedBlocks")

$sbResponseBody = New-Object Chilkat.StringBuilder
$success = $rest.FullRequestNoBodySb("GET","/snapshots/{secondSnapshotId}/changedblocks",$sbResponseBody)
if ($success -ne $true) {
    $($rest.LastErrorText)
    exit
}

$respStatusCode = $rest.ResponseStatusCode
$("response status code = " + $respStatusCode)
if ($respStatusCode -ne 200) {
    $("Response Header:")
    $($rest.ResponseHeader)
    $("Response Body:")
    $($sbResponseBody.GetAsString())
    exit
}

$jResp = New-Object Chilkat.JsonObject
$jResp.LoadSb($sbResponseBody)

# The following code parses the JSON response.
# A sample JSON response is shown below the sample code.

# Use this online tool to generate parsing code from sample JSON:
# Generate Parsing Code from JSON

$BlockSize = $jResp.IntOf("BlockSize")
$ExpiryTime = $jResp.IntOf("ExpiryTime")
$NextToken = $jResp.StringOf("NextToken")
$VolumeSize = $jResp.IntOf("VolumeSize")
$i = 0
$count_i = $jResp.SizeOfArray("ChangedBlocks")
while ($i -lt $count_i) {
    $jResp.I = $i
    $BlockIndex = $jResp.IntOf("ChangedBlocks[i].BlockIndex")
    $FirstBlockToken = $jResp.StringOf("ChangedBlocks[i].FirstBlockToken")
    $SecondBlockToken = $jResp.StringOf("ChangedBlocks[i].SecondBlockToken")
    $i = $i + 1
}

# A sample JSON response body parsed by the above code:

# {
#   "BlockSize": number,
#   "ChangedBlocks": [
#     {
#       "BlockIndex": number,
#       "FirstBlockToken": "string",
#       "SecondBlockToken": "string"
#     }
#   ],
#   "ExpiryTime": number,
#   "NextToken": "string",
#   "VolumeSize": number
# }