Chilkat Online Tools

PollForTask Xojo Example

AWS Data Pipeline

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

Dim rest As New Chilkat.Rest
Dim success As Boolean

Dim authAws As New 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 = "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,True,True)
If (success <> True) Then
    System.DebugLog("ConnectFailReason: " + Str(rest.ConnectFailReason))
    System.DebugLog(rest.LastErrorText)
    Return
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

Dim json As New Chilkat.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")

Dim sbRequestBody As New Chilkat.StringBuilder
success = json.EmitSb(sbRequestBody)
Dim sbResponseBody As New Chilkat.StringBuilder
success = rest.FullRequestSb("POST","/",sbRequestBody,sbResponseBody)
If (success <> True) Then
    System.DebugLog(rest.LastErrorText)
    Return
End If

Dim respStatusCode As Int32
respStatusCode = rest.ResponseStatusCode
System.DebugLog("response status code = " + Str(respStatusCode))
If (respStatusCode <> 200) Then
    System.DebugLog("Response Header:")
    System.DebugLog(rest.ResponseHeader)
    System.DebugLog("Response Body:")
    System.DebugLog(sbResponseBody.GetAsString())
    Return
End If

Dim jResp As New Chilkat.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

Dim key As String
Dim refValue As String
Dim stringValue As String

Dim AttemptId As String
AttemptId = jResp.StringOf("taskObject.attemptId")
Dim Id As String
Id = jResp.StringOf("taskObject.objects.string.id")
Dim Name As String
Name = jResp.StringOf("taskObject.objects.string.name")
Dim PipelineId As String
PipelineId = jResp.StringOf("taskObject.pipelineId")
Dim TaskId As String
TaskId = jResp.StringOf("taskObject.taskId")
Dim i As Int32
i = 0
Dim count_i As Int32
count_i = jResp.SizeOfArray("taskObject.objects.string.fields")
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
Wend

// 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"
//   }
// }