(PowerShell) Azure Service Bus - Send Message to Topic

See more Azure Service Bus Examples

Example code showing how to send a message to an Azure Service Bus Topic.

Chilkat .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

# 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.
$rest = New-Object Chilkat.Rest
$bAutoReconnect = $true
$success = $rest.Connect("<yournamespace>.servicebus.windows.net",443,$true,$bAutoReconnect)
if ($success -ne $true) {
    $($rest.LastErrorText)
    exit
}

# ----------------------------------------------------------------------------------------------
# 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.
$sbToken = New-Object 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())

# ----------------------------------------------------------------------------------------------

# 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.
$sbRequestBody = New-Object Chilkat.StringBuilder
$sbRequestBody.Append("Hello, I'm a gila monster!")

# Build the path..
$sbPath = New-Object Chilkat.StringBuilder
$sbPath.Append("/")
$sbPath.Append($topicName)
$sbPath.Append("/messages")

# Add timeout and api-version query parameters.
$rest.AddQueryParam("timeout","20")
$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..
$json = New-Object Chilkat.JsonObject
$json.AppendInt("TimeToLive",3600)
$json.AppendString("Label","A123")
$rest.AddHeader("BrokerProperties",$json.Emit())

# To add custom properties, such as "Priority" and "Color"
$rest.AddHeader("Priority","High")
$rest.AddHeader("Color","pink")

$sbResponseBody = New-Object Chilkat.StringBuilder
$success = $rest.FullRequestSb("POST",$sbPath.GetAsString(),$sbRequestBody,$sbResponseBody)
if ($success -ne $true) {
    $($rest.LastErrorText)
    exit
}

$("Response Status Code = " + $rest.ResponseStatusCode)

# Check for a success response.
if ($rest.ResponseStatusCode -ne 201) {
    $($rest.LastRequestStartLine)
    $($rest.LastRequestHeader)
    $($sbResponseBody.GetAsString())
    $("Failed.")
    exit
}

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

$("Success.")