Chilkat Tools

PollForTask VBScript Example

AWS Data Pipeline

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
Set outFile = fso.CreateTextFile("output.txt", True)

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

set rest = CreateObject("Chilkat_9_5_0.Rest")

set authAws = CreateObject("Chilkat_9_5_0.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 = "datapipeline"
' SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
success = rest.SetAuthAws(authAws)

' URL: https://datapipeline.us-west-2.amazonaws.com/
' Use the same region as specified above.
success = rest.Connect("datapipeline.us-west-2.amazonaws.com",443,1,1)
If (success <> 1) Then
    outFile.WriteLine("ConnectFailReason: " & rest.ConnectFailReason)
    outFile.WriteLine(rest.LastErrorText)
    WScript.Quit
End If

' The following code creates the JSON request body.
' The JSON created by this code is shown below.

' Use this online tool to generate code from sample JSON:
' Generate Code to Create JSON

set json = CreateObject("Chilkat_9_5_0.JsonObject")
success = json.UpdateString("hostname","string")
success = json.UpdateString("instanceIdentity.document","string")
success = json.UpdateString("instanceIdentity.signature","string")
success = json.UpdateString("workerGroup","string")

' The JSON request body created by the above code:

' {
'   "hostname": "string",
'   "instanceIdentity": {
'     "document": "string",
'     "signature": "string"
'   },
'   "workerGroup": "string"
' }

success = rest.AddHeader("Content-Type","application/x-amz-json-1.1")
success = rest.AddHeader("X-Amz-Target","DataPipeline.PollForTask")

set sbRequestBody = CreateObject("Chilkat_9_5_0.StringBuilder")
success = json.EmitSb(sbRequestBody)
set sbResponseBody = CreateObject("Chilkat_9_5_0.StringBuilder")
success = rest.FullRequestSb("POST","/",sbRequestBody,sbResponseBody)
If (success <> 1) Then
    outFile.WriteLine(rest.LastErrorText)
    WScript.Quit
End If

respStatusCode = rest.ResponseStatusCode
outFile.WriteLine("response status code = " & respStatusCode)
If (respStatusCode <> 200) Then
    outFile.WriteLine("Response Header:")
    outFile.WriteLine(rest.ResponseHeader)
    outFile.WriteLine("Response Body:")
    outFile.WriteLine(sbResponseBody.GetAsString())
    WScript.Quit
End If

set jResp = CreateObject("Chilkat_9_5_0.JsonObject")
success = 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

AttemptId = jResp.StringOf("taskObject.attemptId")
Id = jResp.StringOf("taskObject.objects.string.id")
Name = jResp.StringOf("taskObject.objects.string.name")
PipelineId = jResp.StringOf("taskObject.pipelineId")
TaskId = jResp.StringOf("taskObject.taskId")
i = 0
count_i = jResp.SizeOfArray("taskObject.objects.string.fields")
Do While i < count_i
    jResp.I = i
    key = jResp.StringOf("taskObject.objects.string.fields[i].key")
    refValue = jResp.StringOf("taskObject.objects.string.fields[i].refValue")
    stringValue = jResp.StringOf("taskObject.objects.string.fields[i].stringValue")
    i = i + 1
Loop

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

' {
'   "taskObject": {
'     "attemptId": "string",
'     "objects": {
'       "string": {
'         "fields": [
'           {
'             "key": "string",
'             "refValue": "string",
'             "stringValue": "string"
'           }
'         ],
'         "id": "string",
'         "name": "string"
'       }
'     },
'     "pipelineId": "string",
'     "taskId": "string"
'   }
' }

outFile.Close
Chilkat Online Tools

PollForTask VBScript Example

AWS Data Pipeline
