Chilkat Online Tools

DescribeChannel PowerBuilder Example

AWS IoT Analytics

integer li_rc
oleobject loo_Rest
integer li_Success
oleobject loo_AuthAws
oleobject loo_SbResponseBody
integer li_RespStatusCode
oleobject loo_JResp
string ls_Arn
integer li_CreationTime
integer li_LastMessageArrivalTime
integer li_LastUpdateTime
string ls_Name
integer li_NumberOfDays
integer li_Unlimited
string ls_Status
string ls_Bucket
string ls_KeyPrefix
string ls_RoleArn
integer li_EstimatedOn
integer li_EstimatedSizeInBytes

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

loo_Rest = create oleobject
li_rc = loo_Rest.ConnectToNewObject("Chilkat_9_5_0.Rest")
if li_rc < 0 then
    destroy loo_Rest
    MessageBox("Error","Connecting to COM object failed")
    return
end if

loo_AuthAws = create oleobject
li_rc = loo_AuthAws.ConnectToNewObject("Chilkat_9_5_0.AuthAws")

loo_AuthAws.AccessKey = "AWS_ACCESS_KEY"
loo_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.)
loo_AuthAws.Region = "us-west-2"
loo_AuthAws.ServiceName = "iotanalytics"
// SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
loo_Rest.SetAuthAws(loo_AuthAws)

// URL: https://iotanalytics.us-west-2.amazonaws.com/
// Use the same region as specified above.
li_Success = loo_Rest.Connect("iotanalytics.us-west-2.amazonaws.com",443,1,1)
if li_Success <> 1 then
    Write-Debug "ConnectFailReason: " + string(loo_Rest.ConnectFailReason)
    Write-Debug loo_Rest.LastErrorText
    destroy loo_Rest
    destroy loo_AuthAws
    return
end if

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

loo_SbResponseBody = create oleobject
li_rc = loo_SbResponseBody.ConnectToNewObject("Chilkat_9_5_0.StringBuilder")

li_Success = loo_Rest.FullRequestNoBodySb("GET","/channels/{channelName}",loo_SbResponseBody)
if li_Success <> 1 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_Rest
    destroy loo_AuthAws
    destroy loo_SbResponseBody
    return
end if

li_RespStatusCode = loo_Rest.ResponseStatusCode
Write-Debug "response status code = " + string(li_RespStatusCode)
if li_RespStatusCode <> 200 then
    Write-Debug "Response Header:"
    Write-Debug loo_Rest.ResponseHeader
    Write-Debug "Response Body:"
    Write-Debug loo_SbResponseBody.GetAsString()
    destroy loo_Rest
    destroy loo_AuthAws
    destroy loo_SbResponseBody
    return
end if

loo_JResp = create oleobject
li_rc = loo_JResp.ConnectToNewObject("Chilkat_9_5_0.JsonObject")

loo_JResp.LoadSb(loo_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

ls_Arn = loo_JResp.StringOf("channel.arn")
li_CreationTime = loo_JResp.IntOf("channel.creationTime")
li_LastMessageArrivalTime = loo_JResp.IntOf("channel.lastMessageArrivalTime")
li_LastUpdateTime = loo_JResp.IntOf("channel.lastUpdateTime")
ls_Name = loo_JResp.StringOf("channel.name")
li_NumberOfDays = loo_JResp.IntOf("channel.retentionPeriod.numberOfDays")
li_Unlimited = loo_JResp.IntOf("channel.retentionPeriod.unlimited")
ls_Status = loo_JResp.StringOf("channel.status")
ls_Bucket = loo_JResp.StringOf("channel.storage.customerManagedS3.bucket")
ls_KeyPrefix = loo_JResp.StringOf("channel.storage.customerManagedS3.keyPrefix")
ls_RoleArn = loo_JResp.StringOf("channel.storage.customerManagedS3.roleArn")
li_EstimatedOn = loo_JResp.IntOf("statistics.size.estimatedOn")
li_EstimatedSizeInBytes = loo_JResp.IntOf("statistics.size.estimatedSizeInBytes")

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

// {
//   "channel": {
//     "arn": "string",
//     "creationTime": number,
//     "lastMessageArrivalTime": number,
//     "lastUpdateTime": number,
//     "name": "string",
//     "retentionPeriod": {
//       "numberOfDays": number,
//       "unlimited": boolean
//     },
//     "status": "string",
//     "storage": {
//       "customerManagedS3": {
//         "bucket": "string",
//         "keyPrefix": "string",
//         "roleArn": "string"
//       },
//       "serviceManagedS3": {}
//     }
//   },
//   "statistics": {
//     "size": {
//       "estimatedOn": number,
//       "estimatedSizeInBytes": number
//     }
//   }
// }


destroy loo_Rest
destroy loo_AuthAws
destroy loo_SbResponseBody
destroy loo_JResp