AWS SDK Version 2 for .NET
API Reference

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.NET Framework 3.5
 
Deletes up to ten messages from the specified queue. This is a batch version of DeleteMessage. The result of the delete action on each message is reported individually in the response.

Because the batch request can result in a combination of successful and unsuccessful actions, you should check for batch errors even when the call returns an HTTP status code of 200.

Some API actions take lists of parameters. These lists are specified using the param.n notation. Values of n are integers starting from 1. For example, a parameter list with two elements looks like this:

&Attribute.1=this

&Attribute.2=that

Namespace: Amazon.SQS
Assembly: AWSSDK.dll
Version: (assembly version)

Syntax

C#
public virtual DeleteMessageBatchResponse DeleteMessageBatch(
         DeleteMessageBatchRequest request
)

Parameters

request
Type: Amazon.SQS.Model.DeleteMessageBatchRequest

Container for the necessary parameters to execute the DeleteMessageBatch service method.

Return Value
Type: Amazon.SQS.Model.DeleteMessageBatchResponse
The response from the DeleteMessageBatch service method, as returned by SQS.

Exceptions

ExceptionCondition
BatchEntryIdsNotDistinctException Two or more batch entries have the same Id in the request.
EmptyBatchRequestException Batch request does not contain an entry.
InvalidBatchEntryIdException The Id of a batch entry in a batch request does not abide by the specification.
TooManyEntriesInBatchRequestException Batch request contains more number of entries than permissible.

Examples

This example shows how to delete messages in batch.

Batch delete messages example

var client = new AmazonSQSClient();

var request = new ReceiveMessageRequest
{
  AttributeNames = new List<string>() { "All" },
  MaxNumberOfMessages = 5,
  QueueUrl = "https://sqs.us-east-1.amazonaws.com/80398EXAMPLE/MyTestQueue",
  VisibilityTimeout = (int)TimeSpan.FromMinutes(10).TotalSeconds,
  WaitTimeSeconds = (int)TimeSpan.FromSeconds(5).TotalSeconds
};

var response = client.ReceiveMessage(request);
var batchEntries = new List<DeleteMessageBatchRequestEntry>();

if (response.Messages.Count > 0)
{
  foreach (var message in response.Messages)
  {
    var batchEntry = new DeleteMessageBatchRequestEntry
    {
      Id = message.MessageId,
      ReceiptHandle = message.ReceiptHandle
    };

    batchEntries.Add(batchEntry);
  }

  var delRequest = new DeleteMessageBatchRequest
  {
    Entries = batchEntries,
    QueueUrl = "https://sqs.us-east-1.amazonaws.com/80398EXAMPLE/MyTestQueue"
  };

  var delResponse = client.DeleteMessageBatch(delRequest);

  if (delResponse.Failed.Count > 0)
  {
    Console.WriteLine("Failed deletions:");

    foreach (var failure in delResponse.Failed)
    {
      Console.WriteLine("  For ID '" + failure.Id + "': ");
      Console.WriteLine("    Code = " + failure.Code);
      Console.WriteLine("    Message = " + failure.Message);
      Console.WriteLine("    Sender's fault? = " + failure.SenderFault);
    }
  }

  if (delResponse.Successful.Count > 0)
  {
    Console.WriteLine("Successful deletions:");

    foreach (var success in delResponse.Successful)
    {
      Console.WriteLine("  ID '" + success.Id + "'");
    }
  }
}
else
{
  Console.WriteLine("No messages to delete.");
}
      

Version Information

.NET Framework:
Supported in: 4.5, 4.0, 3.5