PHP ActiveX

Azure Service Bus - Delete Message

See more Azure Service Bus Examples

Deletes a message from a queue or subscription.

For more information, see https://docs.microsoft.com/en-us/rest/api/servicebus/unlock-message

PHP ActiveX

<?php

$success = 0;

// 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 COM("Chilkat.Rest");
$bAutoReconnect = 1;
$success = $rest->Connect('<yournamespace>.servicebus.windows.net',443,1,$bAutoReconnect);
if ($success != 1) {
    print $rest->LastErrorText . "\n";
    exit;
}

// 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 COM("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 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..
// ----------------------------------------------------------------------------------------------

// To delete a message, we'll need either the SequenceNumber or MessageId.
// When the message was peek-locked, the SequenceNumber and MessageId of the locked message
// was returned in the HTTP response header named "BrokerProperties, which contained
// JSON such as the following:
// 
// 	{
// 	  "DeliveryCount": 1,
// 	  "EnqueuedSequenceNumber": 3000004,
// 	  "EnqueuedTimeUtc": "Wed, 07 Dec 2016 17:42:48 GMT",
// 	  "Label": "M3",
// 	  "LockToken": "6eeee205-e541-4cb6-95fb-4c81da5f6858",
// 	  "LockedUntilUtc": "Thu, 08 Dec 2016 00:57:32 GMT",
// 	  "MessageId": "e8028116d63c43f191577f2789b1cca7",
// 	  "SequenceNumber": 4,
// 	  "State": "Active",
// 	  "TimeToLive": 922337193600
// 	}
// 
// 
// The path for unlocking a message is constructed as follows, depending on
// whether it is a message on a queue or subscription:
// 
// (for a queue)
// /{queuePath}/messages/{messageId|sequenceNumber}/{lockToken}
// 
// (for a subscription)
// /{topicPath}/subscriptions/{subscriptionName}/messages/{messageId|sequenceNumber}/{lockToken}

// This example will build a path to delete a message contained in a subscription.
$topicName = 'gilaMonster';
$subscriptionName = 'feedings';
$messageId = 'e8028116d63c43f191577f2789b1cca7';
$lockToken = '6eeee205-e541-4cb6-95fb-4c81da5f6858';

// Build the path..
$sbPath = new COM("Chilkat.StringBuilder");
$sbPath->Append('/{topicPath}/subscriptions/{subscriptionName}/messages/{messageId|sequenceNumber}/{lockToken}');
$numReplaced = $sbPath->Replace('{topicPath}',$topicName);
$numReplaced = $sbPath->Replace('{subscriptionName}',$subscriptionName);
$numReplaced = $sbPath->Replace('{messageId|sequenceNumber}',$messageId);
$numReplaced = $sbPath->Replace('{lockToken}',$lockToken);

// Add a timeout parameter.
$rest->AddQueryParam('timeout','20');

// Use the DELETE HTTP verb to delete the message.
$sbResponseBody = new COM("Chilkat.StringBuilder");
$success = $rest->FullRequestNoBodySb('DELETE',$sbPath->getAsString(),$sbResponseBody);
if ($success != 1) {
    print $rest->LastErrorText . "\n";
    exit;
}

print 'Response Status Code = ' . $rest->ResponseStatusCode . "\n";

// Check for a success response.
if ($rest->ResponseStatusCode != 200) {
    print $rest->LastRequestStartLine . "\n";
    print $rest->LastRequestHeader . "\n";
    print $sbResponseBody->getAsString() . "\n";
    print 'Failed.' . "\n";
    exit;
}

// If successful, the response body would be empty..
print 'Success.' . "\n";

?>