Chilkat Online Tools

ListDatastores VB.NET Example

AWS IoT Analytics

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

' URL: https://iotanalytics.us-west-2.amazonaws.com/
' Use the same region as specified above.
success = rest.Connect("iotanalytics.us-west-2.amazonaws.com",443,True,True)
If (success <> True) Then
    Debug.WriteLine("ConnectFailReason: " & rest.ConnectFailReason)
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


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

Dim sbResponseBody As New Chilkat.StringBuilder
success = rest.FullRequestNoBodySb("GET","/datastores",sbResponseBody)
If (success <> True) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If

Dim respStatusCode As Integer = rest.ResponseStatusCode
Debug.WriteLine("response status code = " & respStatusCode)
If (respStatusCode <> 200) Then
    Debug.WriteLine("Response Header:")
    Debug.WriteLine(rest.ResponseHeader)
    Debug.WriteLine("Response Body:")
    Debug.WriteLine(sbResponseBody.GetAsString())
    Exit Sub
End If


Dim jResp As New 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



Dim creationTime As Integer
Dim datastoreName As String
Dim Bucket As String
Dim KeyPrefix As String
Dim RoleArn As String
Dim CustomerManagedS3StorageBucket As String
Dim CustomerManagedS3StorageKeyPrefix As String
Dim fileFormatType As String
Dim lastMessageArrivalTime As Integer
Dim lastUpdateTime As Integer
Dim status As String
Dim j As Integer
Dim count_j As Integer
Dim AttributeName As String
Dim timestampPartitionAttributeName As String
Dim TimestampFormat As String

Dim nextToken As String = jResp.StringOf("nextToken")
Dim i As Integer = 0
Dim count_i As Integer = jResp.SizeOfArray("datastoreSummaries")
While i < count_i
    jResp.I = i
    creationTime = jResp.IntOf("datastoreSummaries[i].creationTime")
    datastoreName = jResp.StringOf("datastoreSummaries[i].datastoreName")
    Bucket = jResp.StringOf("datastoreSummaries[i].datastoreStorage.customerManagedS3.bucket")
    KeyPrefix = jResp.StringOf("datastoreSummaries[i].datastoreStorage.customerManagedS3.keyPrefix")
    RoleArn = jResp.StringOf("datastoreSummaries[i].datastoreStorage.customerManagedS3.roleArn")
    CustomerManagedS3StorageBucket = jResp.StringOf("datastoreSummaries[i].datastoreStorage.iotSiteWiseMultiLayerStorage.customerManagedS3Storage.bucket")
    CustomerManagedS3StorageKeyPrefix = jResp.StringOf("datastoreSummaries[i].datastoreStorage.iotSiteWiseMultiLayerStorage.customerManagedS3Storage.keyPrefix")
    fileFormatType = jResp.StringOf("datastoreSummaries[i].fileFormatType")
    lastMessageArrivalTime = jResp.IntOf("datastoreSummaries[i].lastMessageArrivalTime")
    lastUpdateTime = jResp.IntOf("datastoreSummaries[i].lastUpdateTime")
    status = jResp.StringOf("datastoreSummaries[i].status")
    j = 0
    count_j = jResp.SizeOfArray("datastoreSummaries[i].datastorePartitions.partitions")
    While j < count_j
        jResp.J = j
        AttributeName = jResp.StringOf("datastoreSummaries[i].datastorePartitions.partitions[j].attributePartition.attributeName")
        timestampPartitionAttributeName = jResp.StringOf("datastoreSummaries[i].datastorePartitions.partitions[j].timestampPartition.attributeName")
        TimestampFormat = jResp.StringOf("datastoreSummaries[i].datastorePartitions.partitions[j].timestampPartition.timestampFormat")
        j = j + 1
    End While
    i = i + 1
End While


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

' {
'   "datastoreSummaries": [
'     {
'       "creationTime": number,
'       "datastoreName": "string",
'       "datastorePartitions": {
'         "partitions": [
'           {
'             "attributePartition": {
'               "attributeName": "string"
'             },
'             "timestampPartition": {
'               "attributeName": "string",
'               "timestampFormat": "string"
'             }
'           }
'         ]
'       },
'       "datastoreStorage": {
'         "customerManagedS3": {
'           "bucket": "string",
'           "keyPrefix": "string",
'           "roleArn": "string"
'         },
'         "iotSiteWiseMultiLayerStorage": {
'           "customerManagedS3Storage": {
'             "bucket": "string",
'             "keyPrefix": "string"
'           }
'         },
'         "serviceManagedS3": {}
'       },
'       "fileFormatType": "string",
'       "lastMessageArrivalTime": number,
'       "lastUpdateTime": number,
'       "status": "string"
'     }
'   ],
'   "nextToken": "string"
' }