VB.NET

Azure Service Bus - Create Topic

See more Azure Service Bus Examples

Creates an Azure Service Bus Topic.

Note: This example requires Chilkat v9.5.0.65 or greater.

VB.NET

Dim success As Boolean = 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.
Dim rest As New Chilkat.Rest
Dim bAutoReconnect As Boolean = True
success = rest.Connect("<yournamespace>.servicebus.windows.net",443,True,bAutoReconnect)
If (success <> True) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


' ----------------------------------------------------------------------------------------------
' 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..
' ----------------------------------------------------------------------------------------------

' 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.
Dim sbToken As New Chilkat.StringBuilder
sbToken.LoadFile("qa_data/tokens/serviceBusSas.txt","utf-8")

' Tell the REST object to use the Azure Shared Access Signature for authorization.
sbToken.Prepend("SharedAccessSignature ")
rest.AddHeader("Authorization",sbToken.GetAsString())

' ----------------------------------------------------------------------------------------------

' Create a new topic named "gilaMonster";
Dim topicName As String = "gilaMonster"

' Create the XML body of the PUT request.
Dim xml As New Chilkat.Xml
xml.Tag = "entry"
xml.AddAttribute("xmlns","http://www.w3.org/2005/Atom")
xml.UpdateAttrAt("title",True,"type","text")
xml.UpdateChildContent("title",topicName)
xml.UpdateAttrAt("content",True,"type","application/xml")
xml.UpdateAttrAt("content|TopicDescription",True,"xmlns:i","http://www.w3.org/2001/XMLSchema-instance")
xml.UpdateAttrAt("content|TopicDescription",True,"xmlns","http://schemas.microsoft.com/netservices/2010/10/servicebus/connect")
xml.EmitXmlDecl = False
Debug.WriteLine(xml.GetXml())

' The XML created by the above code:

' 	<entry xmlns="http://www.w3.org/2005/Atom">
' 	    <title type="text">gilaMonster</title>
' 	    <content type="application/xml">
' 	        <TopicDescription xmlns:i="http://www.w3.org/2001/XMLSchema-instance" 
' 			xmlns="http://schemas.microsoft.com/netservices/2010/10/servicebus/connect" />
' 	    </content>
' 	</entry>

Dim sbRequestBody As New Chilkat.StringBuilder
xml.GetXmlSb(sbRequestBody)

' The path should be set to the to-be-created queue name.
Dim sbPath As New Chilkat.StringBuilder
sbPath.Append("/")
sbPath.Append(topicName)

Dim sbResponseBody As New Chilkat.StringBuilder
success = rest.FullRequestSb("PUT",sbPath.GetAsString(),sbRequestBody,sbResponseBody)
If (success <> True) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


Debug.WriteLine("Response Status Code = " & rest.ResponseStatusCode)

' Check for a success response.
If (rest.ResponseStatusCode <> 201) Then
    Debug.WriteLine(rest.LastRequestStartLine)
    Debug.WriteLine(rest.LastRequestHeader)
    Debug.WriteLine(sbResponseBody.GetAsString())
    Debug.WriteLine("Failed.")
    Exit Sub
End If


' The response is XML.  (See a sample response below..)
xml.LoadSb(sbResponseBody,True)
Debug.WriteLine(xml.GetXml())

Debug.WriteLine("Success.")

' -----------------------------------------------
' A sample successful XML response:

' 	<entry xmlns="http://www.w3.org/2005/Atom">
' 	    <id>https://chilkat.servicebus.windows.net/gilaMonster</id>
' 	    <title type="text">gilaMonster</title>
' 	    <published>2016-12-06T23:34:13Z</published>
' 	    <updated>2016-12-06T23:34:13Z</updated>
' 	    <author>
' 	        <name>chilkat</name>
' 	    </author>
' 	    <link rel="self" href="https://chilkat.servicebus.windows.net/gilaMonster" />
' 	    <content type="application/xml">
' 	        <TopicDescription xmlns="http://schemas.microsoft.com/netservices/2010/10/servicebus/connect" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
' 	            <DefaultMessageTimeToLive>P10675199DT2H48M5.4775807S</DefaultMessageTimeToLive>
' 	            <MaxSizeInMegabytes>1024</MaxSizeInMegabytes>
' 	            <RequiresDuplicateDetection>false</RequiresDuplicateDetection>
' 	            <DuplicateDetectionHistoryTimeWindow>PT10M</DuplicateDetectionHistoryTimeWindow>
' 	            <EnableBatchedOperations>true</EnableBatchedOperations>
' 	            <SizeInBytes>0</SizeInBytes>
' 	            <CreatedAt>2016-12-06T23:34:13.483</CreatedAt>
' 	            <UpdatedAt>2016-12-06T23:34:13.7</UpdatedAt>
' 	        </TopicDescription>
' 	    </content>
' 	</entry>