Request Syntax Request Parameters Response Syntax Response Elements Errors Examples See Also

SendMessageBatch

You can use SendMessageBatch to send up to 10 messages to the specified queue by assigning either identical or different values to each message (or by not assigning values at all). This is a batch version of SendMessage. For a FIFO queue, multiple messages within a single batch are enqueued in the order they are sent.

The result of sending 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.

The maximum allowed individual message size and the maximum total payload size (the sum of the individual lengths of all of the batched messages) are both 256 KiB (262,144 bytes).

Important

A message can include only XML, JSON, and unformatted text. The following Unicode characters are allowed. For more information, see the W3C specification for characters.

#x9 | #xA | #xD | #x20 to #xD7FF | #xE000 to #xFFFD | #x10000 to #x10FFFF

Amazon SQS does not throw an exception or completely reject the message if it contains invalid characters. Instead, it replaces those invalid characters with U+FFFD before storing the message in the queue, as long as the message body contains at least one valid character.

If you don't specify the DelaySeconds parameter for an entry, Amazon SQS uses the default value for the queue.

Request Syntax


{
   "Entries": [ 
      { 
         "DelaySeconds": number,
         "Id": "string",
         "MessageAttributes": { 
            "string" : { 
               "BinaryListValues": [ blob ],
               "BinaryValue": blob,
               "DataType": "string",
               "StringListValues": [ "string" ],
               "StringValue": "string"
            }
         },
         "MessageBody": "string",
         "MessageDeduplicationId": "string",
         "MessageGroupId": "string",
         "MessageSystemAttributes": { 
            "string" : { 
               "BinaryListValues": [ blob ],
               "BinaryValue": blob,
               "DataType": "string",
               "StringListValues": [ "string" ],
               "StringValue": "string"
            }
         }
      }
   ],
   "QueueUrl": "string"
}

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

The request accepts the following data in JSON format.

Entries

A list of SendMessageBatchRequestEntry items.

Type: Array of SendMessageBatchRequestEntry objects

Required: Yes

QueueUrl

The URL of the Amazon SQS queue to which batched messages are sent.

Queue URLs and names are case-sensitive.

Type: String

Required: Yes

Response Syntax


{
   "Failed": [ 
      { 
         "Code": "string",
         "Id": "string",
         "Message": "string",
         "SenderFault": boolean
      }
   ],
   "Successful": [ 
      { 
         "Id": "string",
         "MD5OfMessageAttributes": "string",
         "MD5OfMessageBody": "string",
         "MD5OfMessageSystemAttributes": "string",
         "MessageId": "string",
         "SequenceNumber": "string"
      }
   ]
}

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

Failed

A list of BatchResultErrorEntry items with error details about each message that can't be enqueued.

Type: Array of BatchResultErrorEntry objects

Successful

A list of SendMessageBatchResultEntry items.

Type: Array of SendMessageBatchResultEntry objects

Errors

For information about the errors that are common to all actions, see Common Errors.

BatchEntryIdsNotDistinct

Two or more batch entries in the request have the same Id.

HTTP Status Code: 400

BatchRequestTooLong

The length of all the messages put together is more than the limit.

HTTP Status Code: 400

EmptyBatchRequest

The batch request doesn't contain any entries.

HTTP Status Code: 400

InvalidAddress

The specified ID is invalid.

HTTP Status Code: 400

InvalidBatchEntryId

The Id of a batch entry in a batch request doesn't abide by the specification.

HTTP Status Code: 400

InvalidSecurity

The request was not made over HTTPS or did not use SigV4 for signing.

HTTP Status Code: 400

KmsAccessDenied

The caller doesn't have the required KMS access.

HTTP Status Code: 400

KmsDisabled

The request was denied due to request throttling.

HTTP Status Code: 400

KmsInvalidKeyUsage

The request was rejected for one of the following reasons:

The KeyUsage value of the KMS key is incompatible with the API operation.
The encryption algorithm or signing algorithm specified for the operation is incompatible with the type of key material in the KMS key (KeySpec).

HTTP Status Code: 400

KmsInvalidState

The request was rejected because the state of the specified resource is not valid for this request.

HTTP Status Code: 400

KmsNotFound

The request was rejected because the specified entity or resource could not be found.

HTTP Status Code: 400

KmsOptInRequired

The request was rejected because the specified key policy isn't syntactically or semantically correct.

HTTP Status Code: 400

KmsThrottled

AWS KMS throttles requests for the following conditions.

HTTP Status Code: 400

QueueDoesNotExist

Ensure that the QueueUrl is correct and that the queue has not been deleted.

HTTP Status Code: 400

RequestThrottled

The request was denied due to request throttling.

Exceeds the permitted request rate for the queue or for the recipient of the request.
Ensure that the request rate is within the Amazon SQS limits for sending messages. For more information, see Amazon SQS quotas in the Amazon SQS Developer Guide.

HTTP Status Code: 400

TooManyEntriesInBatchRequest

The batch request contains more entries than permissible. For Amazon SQS, the maximum number of entries you can include in a single SendMessageBatch, DeleteMessageBatch, or ChangeMessageVisibilityBatch request is 10.

HTTP Status Code: 400

UnsupportedOperation

Error code 400. Unsupported operation.

HTTP Status Code: 400

Examples

The following example SendMessageBatch request sends two messages to the queue. You must URL-encode the entire URL. However, in this example only the message body is URL-encoded to make the example easier to read. The structure of AUTHPARAMS depends on the signature of the API request. For more information, see Examples of Signed Signature Version 4 Requests in the AWS General Reference.

Example

Using AWS JSON protocol (Default)

Sample Request


POST / HTTP/1.1
Host: sqs.us-east-1.amazonaws.com
X-Amz-Target: AmazonSQS.SendMessageBatch
X-Amz-Date: <Date>
Content-Type: application/x-amz-json-1.0
Authorization: <AuthParams>
Content-Length: <PayloadSizeBytes>
Connection: Keep-Alive 
{
    "QueueUrl": "https://sqs.us-east-1.amazonaws.com/177715257436/MyQueue/",
    "Entries": [
        {
            "Id": "test_msg_001",
            "MessageBody": "test message body 1"
        },
        {
            "Id": "test_msg_002",
            "MessageBody": "test message body 2",
            "DelaySeconds": 60,
            "MessageAttributes": {
                "my_attribute_name_1": {
                    "DataType": "String",
                    "StringValue": "my_attribute_value_1"
                }
            }
        }
    ]
}

Sample Response


HTTP/1.1 200 OK
x-amzn-RequestId: <requestId>
Content-Length: <PayloadSizeBytes>
Date: <Date>
Content-Type: application/x-amz-json-1.0
{
   "Failed": [],
    "Successful": [
        {
            "Id": "test_msg_001",
            "MD5OfMessageBody": "0e024d309850c78cba5eabbeff7cae71",
            "MessageId": "f4eb349f-cd33-4bc4-bdc2-e557c900d41d"
        },
        {
            "Id": "test_msg_002",
            "MD5OfMessageAttributes": "8ef4d60dbc8efda9f260e1dfd09d29f3",
            "MD5OfMessageBody": "27118326006d3829667a400ad23d5d98",
            "MessageId": "1dcfcd50-5a67-45ae-ae4c-1c152b5effb9"
        }
    ]
}

Example

Using AWS query protocol

Sample Request


POST /177715257436/MyQueue/ HTTP/1.1
Host: sqs.us-east-1.amazonaws.com
X-Amz-Date: <Date>
Content-Type: application/x-www-form-urlencoded
Authorization: <AuthParams>
Content-Length: <PayloadSizeBytes>
Connection: Keep-Alive
Action=SendMessageBatch
&SendMessageBatchRequestEntry.1.Id=test_msg_001
&SendMessageBatchRequestEntry.1.MessageBody=test%20message%20body%201
&SendMessageBatchRequestEntry.2.Id=test_msg_002
&SendMessageBatchRequestEntry.2.MessageBody=test%20message%20body%202
&SendMessageBatchRequestEntry.2.DelaySeconds=60
&SendMessageBatchRequestEntry.2.MessageAttribute.1.Name=test_attribute_name_1
&SendMessageBatchRequestEntry.2.MessageAttribute.1.Value.StringValue=test_attribute_value_1
&SendMessageBatchRequestEntry.2.MessageAttribute.1.Value.DataType=String

Sample Response


HTTP/1.1 200 OK
<?xml version="1.0"?>
<SendMessageBatchResponse xmlns="http://queue.amazonaws.com/doc/2012-11-05/">
    <SendMessageBatchResult>
        <SendMessageBatchResultEntry>
            <Id>test_msg_001</Id>
            <MessageId>60e827c3-c8a5-410a-af0e-fb43746e70b1</MessageId>
            <MD5OfMessageBody>0e024d309850c78cba5eabbeff7cae71</MD5OfMessageBody>
        </SendMessageBatchResultEntry>
        <SendMessageBatchResultEntry>
            <Id>test_msg_00</Id>
            <MessageId>c6e7fc6a-b802-4724-be06-59833004578b</MessageId>
            <MD5OfMessageBody>7fb8146a82f95e0af155278f406862c2</MD5OfMessageBody>
            <MD5OfMessageAttributes>ba056227cfd9533dba1f72ad9816d233</MD5OfMessageAttributes>
        </SendMessageBatchResultEntry>
    </SendMessageBatchResult>
    <ResponseMetadata>
        <RequestId>5150a701-14f7-5609-b136-fb71a0ca744a</RequestId>
    </ResponseMetadata>
</SendMessageBatchResponse>

Example

The following example sends multiple messages with message timers—applying a visibility delay of variable length to the messages in the batch—by calling the SendMessageBatch action without a value for DelaySeconds for the first message and with the values of 45 seconds and 2 minutes for the second and third messages.

Note

If you don't set a value for the DelaySeconds parameter, the message might still be subject to a delay if you add the message to a delay queue. For more information about using delay queues, see Amazon SQS Delay Queues in the Amazon SQS Developer Guide.

Using AWS JSON protocol (Default)

Sample Request


POST / HTTP/1.1
Host: sqs.us-east-1.amazonaws.com
X-Amz-Target: AmazonSQS.SendMessageBatch
X-Amz-Date: <Date>
Content-Type: application/x-amz-json-1.0
Authorization: <AuthParams>
Content-Length: <PayloadSizeBytes>
Connection: Keep-Alive 
{
    "QueueUrl": "https://sqs.us-east-1.amazonaws.com/177715257436/MyQueue/",
    "Entries": [
        {
            "Id": "test_msg_no_message_timer",
            "MessageBody": "test message body 1"
        },
        {
            "Id": "test_msg_delay_45_seconds",
            "MessageBody": "test message body 2",
            "DelaySeconds": 45
        },
        {
            "Id": "test_msg_delay_2_minutes",
            "MessageBody": "test message body 3",
            "DelaySeconds": 120
        }
    ]
}

Example

Using AWS query protocol

Sample Request


POST /177715257436/MyQueue/ HTTP/1.1
Host: sqs.us-east-1.amazonaws.com
X-Amz-Date: <Date>
Content-Type: application/x-www-form-urlencoded
Authorization: <AuthParams>
Content-Length: <PayloadSizeBytes>
Connection: Keep-Alive
Action=SendMessageBatch
&SendMessageBatchRequestEntry.1.Id=test_msg_no_message_timer
&SendMessageBatchRequestEntry.1.MessageBody=test%20message%20body%201
&SendMessageBatchRequestEntry.2.Id=test_msg_delay_45_seconds
&SendMessageBatchRequestEntry.2.MessageBody=test%20message%20body%202
&SendMessageBatchRequestEntry.2.DelaySeconds=45
&SendMessageBatchRequestEntry.3.Id=test_msg_delay_2_minutes
&SendMessageBatchRequestEntry.3.MessageBody=test%20message%20body%203
&SendMessageBatchRequestEntry.3.DelaySeconds=120