AutoIt

Azure Service Bus - Read Queued Message

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Demonstrates read a message from an Azure Service Bus Queue. The message is received and removed from the queue. AutoIt

Local $bSuccess = False

; Note: Requires Chilkat v9.5.0.65 or greater.

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

; Make the initial connection.
; A single REST object, once connected, can be used for many Azure Service Bus REST API calls.
; The auto-reconnect indicates that if the already-established HTTPS connection is closed,
; then it will be automatically re-established as needed.
$oRest = ObjCreate("Chilkat.Rest")
Local $bAutoReconnect = True
$bSuccess = $oRest.Connect("<yournamespace>.servicebus.windows.net",443,True,$bAutoReconnect)
If ($bSuccess <> True) Then
    ConsoleWrite($oRest.LastErrorText & @CRLF)
    Exit
EndIf

; ----------------------------------------------------------------------------------------------
; The code above this comment could be placed inside a function/subroutine within the application
; because the connection does not need to be made for every request.  Once the connection is made
; the app may send many requests..
; ----------------------------------------------------------------------------------------------

; Receive and delete a message from a queue named "gila";
Local $sQueueName = "gila"

; Let's load a previously computed SAS token and use it.
; See Azure Shared Access Signature for an example to genenerate an Azure SAS token.
$oSbToken = ObjCreate("Chilkat.StringBuilder")
$oSbToken.LoadFile("qa_data/tokens/serviceBusSas.txt","utf-8")

; Tell the REST object to use the Azure Shared Access Signature for authorization.
$oSbToken.Prepend("SharedAccessSignature ")
$oRest.AddHeader("Authorization",$oSbToken.GetAsString())

; Build the path..
$oSbPath = ObjCreate("Chilkat.StringBuilder")
$oSbPath.Append("/")
$oSbPath.Append($sQueueName)
$oSbPath.Append("/messages/head")

; Add timeout and api-version query parameters.
$oRest.AddQueryParam("timeout","20")
$oRest.AddQueryParam("api-version","2013-08")

; Use the DELETE HTTP verb to read the message at the head of the queue and remove it.
$oSbResponseBody = ObjCreate("Chilkat.StringBuilder")
$bSuccess = $oRest.FullRequestNoBodySb("DELETE",$oSbPath.GetAsString(),$oSbResponseBody)
If ($bSuccess <> True) Then
    ConsoleWrite($oRest.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("Response Status Code = " & $oRest.ResponseStatusCode & @CRLF)

; Check for a success response.
If ($oRest.ResponseStatusCode <> 200) Then
    ConsoleWrite($oRest.LastRequestStartLine & @CRLF)
    ConsoleWrite($oRest.LastRequestHeader & @CRLF)
    ConsoleWrite($oSbResponseBody.GetAsString() & @CRLF)
    ConsoleWrite("Failed." & @CRLF)
    Exit
EndIf

; If successful, the message is the contents of the response body.
Local $sMessage = $oSbResponseBody.GetAsString()
ConsoleWrite("Dequeued message: " & $sMessage & @CRLF)

ConsoleWrite("Success." & @CRLF)