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Amazon Simple Storage Service
API Reference (API Version 2006-03-01)

AWS Documentation » Amazon Simple Storage Service (S3) » API Reference » Operations on Buckets » PUT Bucket notification

PUT Bucket notification

Description

The Amazon S3 notification feature enables you to receive notifications when certain events happen in your bucket. For more information about event notifications, go to Configuring Event Notifications in the Amazon Simple Storage Service Developer Guide.

Using this API, you can replace an existing notification configuration. The configuration is an XML file that defines the event types that you want Amazon S3 to publish and the destination where you want Amazon S3 to publish an event notification when it detects an event of the specified type.

By default, your bucket has no event notifications configured. That is, the notification configuration will be an empty NotificationConfiguration. 

<NotificationConfiguration>
</NotificationConfiguration>

This operation replaces the existing notification configuration with the configuration you include in the request body.

After Amazon S3 receives this request, it first verifies that any Amazon Simple Notification Service (Amazon SNS) or Amazon Simple Queue Service (Amazon SQS) destination exists, and that the bucket owner has permission to publish to it by sending a test notification. In the case of AWS Lambda destinations, Amazon S3 verifies that the Lambda function permissions grant Amazon S3 permission to invoke the function from the Amazon S3 bucket. For more information, go to Configuring Notifications for Amazon S3 Events in the Amazon Simple Storage Service Developer Guide.

You can disable notifications by adding the empty NotificationConfiguration element.

By default, only the bucket owner can configure notifications on a bucket. However, bucket owners can use a bucket policy to grant permission to other users to set this configuration with s3:PutBucketNotification permission.

Note

The PUT notification is an atomic operation. For example, suppose your notification configuration includes SNS topic, SQS queue, and Lambda function configurations. When you send a PUT request with this configuration, Amazon S3 sends test messages to your SNS topic. If the message fails, the entire PUT operation will fail, and Amazon S3 will not add the configuration to your bucket.

Requests

Syntax

PUT /?notification HTTP/1.1
Host: bucketname.s3.amazonaws.com
Date: date
Authorization: authorization string (see Authenticating Requests (AWS Signature Version
		4))

<NotificationConfiguration>
    <TopicConfiguration>
        <Id>ConfigurationId</Id>
        <Filter>
            <S3Key>
                <FilterRule>
                    <Name>prefix</Name>
                    <Value>prefix-value</Value>
                </FilterRule>
                <FilterRule>
                    <Name>suffix</Name>
                    <Value>prefix-value</Value>
                </FilterRule>
           </S3Key>
        </Filter>
        <Topic>TopicARN</Topic>
        <Event>event-type</Event>
        <Event>event-type</Event>
        ...
    </TopicConfiguration>
    <QueueConfiguration>
        <Id>ConfigurationId</Id>
	    <Filter>
	        ...
	    </Filter>
        <Queue>QueueARN</Queue>
        <Event>event-type</Event>
        <Event>event-type</Event>
        ...
    </QueueConfiguration>
    ...
    <CloudFunctionConfiguration>   
        <Id>ConfigurationId</Id>
        <Filter>
	        ...
        </Filter>
        <CloudFunction>cloud-function-arn</CloudFunction>    
        <Event>event-type</Event> 
        ...         
    </CloudFunctionConfiguration>  
    ...
</NotificationConfiguration>

Request Parameters

This implementation of the operation does not use request parameters.

Request Headers

This implementation of the operation uses only request headers that are common to all operations. For more information, see Common Request Headers.

Request Elements

Name Description Required
CloudFunction

Lambda cloud function ARN that Amazon S3 can invoke when it detects events of the specified type.

Type: String

Ancestor: CloudFunctionConfiguration

 Required if CloudFunctionConfiguration is added.
CloudFunctionConfiguration

Container for specifying the AWS Lambda notification configuration.

Type: Container

Children: An Id,Filter, CloudFunction, and one, or more Event.

Ancestor: NotificationConfiguration

 No
Event

Bucket event for which to send notifications.

Note

You can add multiple instance of QueueConfiguration, TopicConfiguration, or CloudFunctionConfiguration to the notification configuration.

Type: String

Valid Values: For a list of supported event types, go to Configuring Event Notifications in the Amazon Simple Storage Service Developer Guide.

Ancestor: TopicConfiguration, QueueConfiguration, and CloudFunctionConfiguration.

Required if TopicConfiguration, QueueConfiguration or CloudFunctionConfiguration is added.
Filter

Container for S3Key, which contains object key name filtering rules. For information about key name filtering, go to Configuring Event Notifications in the Amazon Simple Storage Service Developer Guide.

Type: Container

Children: S3Key

Ancestor: TopicConfiguration, QueueConfiguration, or CloudFunctionConfiguration.

No
FilterRule

Container for key value pair that defines the criteria for the filter rule.

Container S3Key

Type: Container

Children: Name and Value

Ancestor: S3Key

 No
Id

Optional unique identifier for each of the configurations in the NotificationConfiguration. If you don't provide, Amazon S3 will assign an ID.

Type: String

Ancestor: TopicConfiguration and QueueConfiguration

 No
Name

Object key name prefix or suffix identifying one or more objects to which the filtering rule applies. Maximum prefix length can be up to 1,024 characters. Overlapping prefixes and suffixes are not supported. For more information, go to Configuring Event Notifications in the Amazon Simple Storage Service Developer Guide.

Type: String

Ancestor: FilterRule

Valid values: prefix or suffix

 No
NotificationConfiguration

Container for specifying the notification configuration of the bucket. If this element is empty, notifications are turned off on the bucket.

Type: Container

Children: one or more TopicConfiguration, QueueConfiguration, and CloudFunctionConfiguration elements.

Ancestor: None

 Yes
Queue

Amazon SQS queue ARN to which Amazon S3 will publish a message when it detects events of specified type.

Type: String

Ancestor: TopicConfiguration

 Required if QueueConfiguration is added.
QueueConfiguration

Container for specifying the SQS queue configuration for the notification. You can add one or more of these queue configurations, each identifying one or more event types.

Type: Container

Children: An Id, Filter, Topic, and one, or more Event.

Ancestor: NotificationConfiguration

 No
S3Key

Container for object key name prefix and suffix filtering rules.

Type: Container

Children: One or more FilterRule

Ancestor: Filter

 No
Topic

Amazon SNS topic ARN to which Amazon S3 will publish a message when it detects events of specified type.

Type: String

Ancestor: TopicConfiguration

Required if TopicConfiguration is added.

TopicConfiguration

Container for specifying an SNS topic configuration for the notification.

Type: Container

Children: An Id, Filter, Topic, and one, or more Event.

Ancestor: NotificationConfiguration

 No
Value

Specifies the object key name prefix or suffix to filter on.

Type: String

Ancestor: FilterRule

 No

Responses

Response Headers

In addition to the common response headers (see Common Response Headers), if the configuration in the request body includes only one TopicConfiguration specifying only the s3:ReducedRedundancyLostObject event type, the response will also include the x-amz-sns-test-message-id header containing the message ID of the test notification sent to topic.

This implementation of the operation uses only response headers that are common to most responses. For more information, see Common Response Headers.

Response Elements

This implementation of the operation does not return response elements.

Special Errors

Amazon S3 checks the validity of the proposed NotificationConfiguration element and verifies whether the proposed configuration is valid when you call the PUT operation. The following table lists the errors and possible causes.

HTTP Error Code Cause
HTTP 400 Bad Request InvalidArgument

The following conditions can cause this error:

  • A specified event is not supported for notifications.

  • A specified destination ARN does not exist or is not well-formed. Verify the destination ARN.

  • A specified destination is in a different region than the bucket. You must use a destination that resides in the same region as the bucket.

  • The bucket owner does not have appropriate permissions on the specified destination.

  • An object key name filtering rule defined with overlapping prefixes, overlapping suffixes, or overlapping combinations of prefixes and suffixes for the same event types.

HTTP 403 Forbidden AccessDenied

You are not the owner of the specified bucket, or you do not have the s3:PutBucketNotification bucket permission to set the notification configuration on the bucket.

For general information about Amazon S3 errors and a list of error codes, see Error Responses.

Examples

Example 1: Configure Notification to Invoke a cloud function in Lambda

The following notification configuration includes CloudFunctionConfiguration, which identifies the event type for which Amazon S3 can invoke a cloud function and the name of the cloud function to invoke. 

<NotificationConfiguration>
  <CloudFunctionConfiguration>
    <Id>ObjectCreatedEvents</Id>
    <CloudFunction>arn:aws:lambda:us-west-2:35667example:function:CreateThumbnail</CloudFunction>
    <Event>s3:ObjectCreated:*</Event>
  </CloudFunctionConfiguration>
</NotificationConfiguration>

The following PUT uploads the notification configuration. The operation replaces the existing notification configuration. 

PUT http://s3.amazonaws.com/examplebucket?notification= HTTP/1.1
User-Agent: s3curl 2.0
Host: s3.amazonaws.com
Pragma: no-cache
Accept: */*
Proxy-Connection: Keep-Alive
Authorization: authorization string
Date: Mon, 13 Oct 2014 23:14:52 +0000
Content-Length: length

[request body]

The following is a sample response.

HTTP/1.1 200 OK
x-amz-id-2: 8+FlwagBSoT2qpMaGlfCUkRkFR5W3OeS7UhhoBb17j+kqvpS2cSFlgJ5coLd53d2
x-amz-request-id: E5BA4600A3937335
Date: Fri, 31 Oct 2014 01:49:50 GMT
Content-Length: 0
Server: AmazonS3

Example 2: Configure a Notification with Multiple Destinations

The following notification configuration includes the topic and queue configurations:

  • A topic configuration identifying an SNS topic for Amazon S3 to publish events of the s3:ReducedRedundancyLostObject type.

  • A queue configuration identifying an SQS queue for Amazon S3 to publish events of the s3:ObjectCreated:* type. 

<NotificationConfiguration>
  <TopicConfiguration>
    <Topic>arn:aws:sns:us-east-1:356671443308:s3notificationtopic2</Topic>
    <Event>s3:ReducedRedundancyLostObject</Event>
  </TopicConfiguration>
  <QueueConfiguration>
    <Queue>arn:aws:sqs:us-east-1:356671443308:s3notificationqueue</Queue>
    <Event>s3:ObjectCreated:*</Event>
  </QueueConfiguration>
</NotificationConfiguration>

The following PUT request against the notification subresource of the examplebucket bucket sends the preceding notification configuration in the request body. The operation replaces the existing notification configuration on the bucket. 

PUT http://s3.amazonaws.com/examplebucket?notification= HTTP/1.1
User-Agent: s3curl 2.0
Host: s3.amazonaws.com
Pragma: no-cache
Accept: */*
Proxy-Connection: Keep-Alive
Authorization: authorization string
Date: Mon, 13 Oct 2014 22:58:43 +0000
Content-Length: 391
Expect: 100-continue

The following is a sample response.

HTTP/1.1 200 OK
x-amz-id-2: SlvJLkfunoAGILZK3KqHSSUq4kwbudkrROmESoHOpDacULy+cxRoR1Svrfoyvg2A
x-amz-request-id: BB1BA8E12D6A80B7
Date: Mon, 13 Oct 2014 22:58:44 GMT
Content-Length: 0
Server: AmazonS3

Example 3: Configure a Notification with Object Key Name Filtering

The following notification configuration contains a queue configuration identifying an Amazon SQS queue for Amazon S3 to publish events to of the s3:ObjectCreated:Put type. The events will be published whenever an object that has a prefix of images/ and a .jpg suffix is PUT to a bucket. For more examples of notification configurations that use filtering, go to Configuring Event Notifications in the Amazon Simple Storage Service Developer Guide. 

<NotificationConfiguration>
  <QueueConfiguration>
      <Id>1</Id>
      <Filter>
          <S3Key>
              <FilterRule>
                  <Name>prefix</Name>
                  <Value>images/</Value>
              </FilterRule>
              <FilterRule>
                  <Name>suffix</Name>
                  <Value>.jpg</Value>
              </FilterRule>
          </S3Key>
     </Filter>
     <Queue>arn:aws:sqs:us-west-2:444455556666:s3notificationqueue</Queue>
     <Event>s3:ObjectCreated:Put</Event>
  </QueueConfiguration>
</NotificationConfiguration>

The following PUT request against the notification subresource of the examplebucket bucket sends the preceding notification configuration in the request body. The operation replaces the existing notification configuration on the bucket. 

PUT http://s3.amazonaws.com/examplebucket?notification= HTTP/1.1
User-Agent: s3curl 2.0
Host: s3.amazonaws.com
Pragma: no-cache
Accept: */*
Proxy-Connection: Keep-Alive
Authorization: authorization string
Date: Mon, 13 Oct 2014 22:58:43 +0000
Content-Length: length
Expect: 100-continue

The following is a sample response.

HTTP/1.1 200 OK
x-amz-id-2: SlvJLkfunoAGILZK3KqHSSUq4kwbudkrROmESoHOpDacULy+cxRoR1Svrfoyvg2A
x-amz-request-id: BB1BA8E12D6A80B7
Date: Mon, 13 Oct 2014 22:58:44 GMT
Content-Length: 0
Server: AmazonS3