Classic ASP
Azure Service Bus - Send Message to Topic

Example code showing how to send a message to an Azure Service Bus Topic.
Chilkat Classic ASP Downloads

Classic ASP
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<%
success = 0

'  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.
set rest = Server.CreateObject("Chilkat.Rest")
bAutoReconnect = 1
success = rest.Connect("<yournamespace>.servicebus.windows.net",443,1,bAutoReconnect)
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( rest.LastErrorText) & "</pre>"
    Response.End
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.
set sbToken = Server.CreateObject("Chilkat.StringBuilder")
success = sbToken.LoadFile("qa_data/tokens/serviceBusSas.txt","utf-8")

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

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

'  The code for sending to a topic is identical to the code sending to a queue.
'  The only difference is that a topic name (or topic path) is used instead of queue name/path.

'  Send to a topic named "gilaMonster";
topicName = "gilaMonster"

'  The HTTP request body contains the content of the message sent to the topic.
set sbRequestBody = Server.CreateObject("Chilkat.StringBuilder")
success = sbRequestBody.Append("Hello, I'm a gila monster!")

'  Build the path..
set sbPath = Server.CreateObject("Chilkat.StringBuilder")
success = sbPath.Append("/")
success = sbPath.Append(topicName)
success = sbPath.Append("/messages")

'  Add timeout and api-version query parameters.
success = rest.AddQueryParam("timeout","20")
success = rest.AddQueryParam("api-version","2013-08")

'  Standard brokered message properties are placed in a BrokerProperties HTTP header. 
'  The broker properties must be serialized in JSON format. To specify a TimeToLive value of 3600 seconds 
'  and to add a message label "M1" to the message..
set json = Server.CreateObject("Chilkat.JsonObject")
success = json.AppendInt("TimeToLive",3600)
success = json.AppendString("Label","A123")
success = rest.AddHeader("BrokerProperties",json.Emit())

'  To add custom properties, such as "Priority" and "Color"
success = rest.AddHeader("Priority","High")
success = rest.AddHeader("Color","pink")

set sbResponseBody = Server.CreateObject("Chilkat.StringBuilder")
success = rest.FullRequestSb("POST",sbPath.GetAsString(),sbRequestBody,sbResponseBody)
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( rest.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "Response Status Code = " & rest.ResponseStatusCode) & "</pre>"

'  Check for a success response.
If (rest.ResponseStatusCode <> 201) Then
    Response.Write "<pre>" & Server.HTMLEncode( rest.LastRequestStartLine) & "</pre>"
    Response.Write "<pre>" & Server.HTMLEncode( rest.LastRequestHeader) & "</pre>"
    Response.Write "<pre>" & Server.HTMLEncode( sbResponseBody.GetAsString()) & "</pre>"
    Response.Write "<pre>" & Server.HTMLEncode( "Failed.") & "</pre>"
    Response.End
End If

'  If successful, the 201 response will have no response body.

Response.Write "<pre>" & Server.HTMLEncode( "Success.") & "</pre>"

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