(Perl) Azure Service Bus - Receive and Delete Message from Subscription

See more Azure Service Bus Examples

Shows how to receive and delete a message from an Azure service bus topic subscription.

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux, Solaris

use chilkat();

# 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 = chilkat::CkRest->new();
$bAutoReconnect = 1;
$success = $rest->Connect("<yournamespace>.servicebus.windows.net",443,1,$bAutoReconnect);
if ($success != 1) {
    print $rest->lastErrorText() . "\r\n";
    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 = chilkat::CkStringBuilder->new();
$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());

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

# Receive a message from the subscription "feedings" in the topic "gilaMonster"
$topicName = "gilaMonster";
$subscriptionName = "feedings";

# Build the path..
$sbPath = chilkat::CkStringBuilder->new();
$sbPath->Append("/");
$sbPath->Append($topicName);
$sbPath->Append("/subscriptions/");
$sbPath->Append($subscriptionName);
$sbPath->Append("/messages/head");

# Add a timeout parameter.
$rest->AddQueryParam("timeout","20");

# Use the DELETE HTTP verb to read the message at the head of the queue and remove it.
$sbResponseBody = chilkat::CkStringBuilder->new();
$success = $rest->FullRequestNoBodySb("DELETE",$sbPath->getAsString(),$sbResponseBody);
if ($success != 1) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

print "Response Status Code = " . $rest->get_ResponseStatusCode() . "\r\n";

# Check for a success response.
if ($rest->get_ResponseStatusCode() != 200) {
    print $rest->lastRequestStartLine() . "\r\n";
    print $rest->lastRequestHeader() . "\r\n";
    print $sbResponseBody->getAsString() . "\r\n";
    print "Failed." . "\r\n";
    exit;
}

# If successful, the message is the contents of the response body.
$message = $sbResponseBody->getAsString();
print "Received message: " . $message . "\r\n";

print "Success." . "\r\n";