public async Task DeadLetterMessage()
{
await using (var scope = await ServiceBusScope.CreateWithQueue(enablePartitioning: false, enableSession: false))
{
string connectionString = TestEnvironment.ServiceBusConnectionString;
string queueName = scope.QueueName;
// since ServiceBusClient implements IAsyncDisposable we create it with "await using"
await using var client = new ServiceBusClient(connectionString);
// create the sender
ServiceBusSender sender = client.CreateSender(queueName);
// create a message that we can send
ServiceBusMessage message = new ServiceBusMessage(Encoding.UTF8.GetBytes("Hello world!"));
// send the message
await sender.SendMessageAsync(message);
// create a receiver that we can use to receive and settle the message
ServiceBusReceiver receiver = client.CreateReceiver(queueName);
#region Snippet:ServiceBusDeadLetterMessage
ServiceBusReceivedMessage receivedMessage = await receiver.ReceiveMessageAsync();
// deadletter the message, thereby preventing the message from being received again without receiving from the dead letter queue.
await receiver.DeadLetterMessageAsync(receivedMessage);
// receive the dead lettered message with receiver scoped to the dead letter queue.
ServiceBusReceiver dlqReceiver = client.CreateDeadLetterReceiver(queueName);
ServiceBusReceivedMessage dlqMessage = await dlqReceiver.ReceiveMessageAsync();
#endregion
Assert.IsNotNull(dlqMessage);
}
}
public async Task DeadLetterMessagesSubscription(bool useSpecificSession)
{
await using (var scope = await ServiceBusScope.CreateWithTopic(enablePartitioning: false, enableSession: true))
{
await using var client = new ServiceBusClient(TestEnvironment.ServiceBusConnectionString);
ServiceBusSender sender = client.CreateSender(scope.TopicName);
var messageCount = 10;
var sessionId = "sessionId1";
using ServiceBusMessageBatch batch = await sender.CreateMessageBatchAsync();
IEnumerable <ServiceBusMessage> messages = AddMessages(batch, messageCount, sessionId).AsEnumerable <ServiceBusMessage>();
await sender.SendMessagesAsync(batch);
var topicName = scope.TopicName;
var subscriptionName = scope.SubscriptionNames.First();
var receiver = await client.CreateSessionReceiverAsync(
topicName : topicName,
subscriptionName : subscriptionName,
new ServiceBusSessionReceiverOptions
{
SessionId = useSpecificSession ? sessionId : null
});
var remainingMessages = messageCount;
var messageEnum = messages.GetEnumerator();
while (remainingMessages > 0)
{
foreach (var item in await receiver.ReceiveMessagesAsync(remainingMessages))
{
remainingMessages--;
messageEnum.MoveNext();
Assert.AreEqual(messageEnum.Current.MessageId, item.MessageId);
Assert.AreEqual(messageEnum.Current.SessionId, item.SessionId);
var props = new Dictionary <string, object>();
// these should be ignored by DeadLetter property getters as they are not strings
props[ServiceBusReceivedMessage.DeadLetterReasonHeader] = DateTime.UtcNow;
props[ServiceBusReceivedMessage.DeadLetterErrorDescriptionHeader] = DateTime.UtcNow;
await receiver.DeadLetterMessageAsync(item.LockToken, props);
}
}
Assert.AreEqual(0, remainingMessages);
var peekedMessage = receiver.PeekMessageAsync();
Assert.IsNull(peekedMessage.Result);
messageEnum.Reset();
remainingMessages = messageCount;
var deadLetterReceiver = client.CreateDeadLetterReceiver(topicName, subscriptionName);
while (remainingMessages > 0)
{
foreach (var msg in await deadLetterReceiver.ReceiveMessagesAsync(remainingMessages))
{
remainingMessages--;
messageEnum.MoveNext();
Assert.AreEqual(messageEnum.Current.MessageId, msg.MessageId);
Assert.AreEqual(messageEnum.Current.SessionId, msg.SessionId);
Assert.IsNull(msg.DeadLetterErrorDescription);
Assert.IsNull(msg.DeadLetterReason);
Assert.IsNotNull(msg.ApplicationProperties[ServiceBusReceivedMessage.DeadLetterReasonHeader]);
Assert.IsNotNull(msg.ApplicationProperties[ServiceBusReceivedMessage.DeadLetterErrorDescriptionHeader]);
await deadLetterReceiver.CompleteMessageAsync(msg.LockToken);
}
}
Assert.AreEqual(0, remainingMessages);
var deadLetterMessage = await deadLetterReceiver.PeekMessageAsync();
Assert.IsNull(deadLetterMessage);
}
}
public async Task DeadLetterMessages(bool useSpecificSession)
{
await using (var scope = await ServiceBusScope.CreateWithQueue(enablePartitioning: false, enableSession: true))
{
await using var client = new ServiceBusClient(TestEnvironment.ServiceBusConnectionString);
ServiceBusSender sender = client.CreateSender(scope.QueueName);
var messageCount = 10;
var sessionId = "sessionId1";
using ServiceBusMessageBatch batch = await sender.CreateMessageBatchAsync();
IEnumerable <ServiceBusMessage> messages = AddMessages(batch, messageCount, sessionId).AsEnumerable <ServiceBusMessage>();
await sender.SendMessagesAsync(batch);
var receiver = await client.CreateSessionReceiverAsync(
scope.QueueName,
new ServiceBusSessionReceiverOptions
{
SessionId = useSpecificSession ? sessionId : null
});
var remainingMessages = messageCount;
var messageEnum = messages.GetEnumerator();
while (remainingMessages > 0)
{
foreach (var item in await receiver.ReceiveMessagesAsync(remainingMessages))
{
remainingMessages--;
messageEnum.MoveNext();
Assert.AreEqual(messageEnum.Current.MessageId, item.MessageId);
Assert.AreEqual(messageEnum.Current.SessionId, item.SessionId);
await receiver.DeadLetterMessageAsync(item.LockToken, "testReason", "testDescription");
}
}
Assert.AreEqual(0, remainingMessages);
var peekedMessage = receiver.PeekMessageAsync();
Assert.IsNull(peekedMessage.Result);
messageEnum.Reset();
remainingMessages = messageCount;
var deadLetterReceiver = client.CreateDeadLetterReceiver(scope.QueueName);
while (remainingMessages > 0)
{
foreach (var msg in await deadLetterReceiver.ReceiveMessagesAsync(remainingMessages))
{
remainingMessages--;
messageEnum.MoveNext();
Assert.AreEqual(messageEnum.Current.MessageId, msg.MessageId);
Assert.AreEqual(messageEnum.Current.SessionId, msg.SessionId);
Assert.AreEqual("testReason", msg.DeadLetterReason);
Assert.AreEqual("testDescription", msg.DeadLetterErrorDescription);
await deadLetterReceiver.CompleteMessageAsync(msg.LockToken);
}
}
Assert.AreEqual(0, remainingMessages);
var deadLetterMessage = await deadLetterReceiver.PeekMessageAsync();
Assert.IsNull(deadLetterMessage);
}
}
