This is the new *CloudFormation Template Reference Guide*. Please update your bookmarks and links. For help getting started with CloudFormation, see the [AWS CloudFormation User Guide](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/Welcome.html).

# AWS::EC2::VPCEndpointConnectionNotification
<a name="aws-resource-ec2-vpcendpointconnectionnotification"></a>

Specifies a connection notification for a VPC endpoint or VPC endpoint service. A connection notification notifies you of specific endpoint events. You must create an SNS topic to receive notifications. For more information, see [Create a Topic](https://docs.aws.amazon.com/sns/latest/dg/CreateTopic.html) in the *Amazon Simple Notification Service Developer Guide*.

You can create a connection notification for interface endpoints only.

## Syntax
<a name="aws-resource-ec2-vpcendpointconnectionnotification-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-resource-ec2-vpcendpointconnectionnotification-syntax.json"></a>

```
{
  "Type" : "AWS::EC2::VPCEndpointConnectionNotification",
  "Properties" : {
      "[ConnectionEvents](#cfn-ec2-vpcendpointconnectionnotification-connectionevents)" : [ String, ... ],
      "[ConnectionNotificationArn](#cfn-ec2-vpcendpointconnectionnotification-connectionnotificationarn)" : String,
      "[ServiceId](#cfn-ec2-vpcendpointconnectionnotification-serviceid)" : String,
      "[VPCEndpointId](#cfn-ec2-vpcendpointconnectionnotification-vpcendpointid)" : String
    }
}
```

### YAML
<a name="aws-resource-ec2-vpcendpointconnectionnotification-syntax.yaml"></a>

```
Type: AWS::EC2::VPCEndpointConnectionNotification
Properties:
  [ConnectionEvents](#cfn-ec2-vpcendpointconnectionnotification-connectionevents): 
    - String
  [ConnectionNotificationArn](#cfn-ec2-vpcendpointconnectionnotification-connectionnotificationarn): String
  [ServiceId](#cfn-ec2-vpcendpointconnectionnotification-serviceid): String
  [VPCEndpointId](#cfn-ec2-vpcendpointconnectionnotification-vpcendpointid): String
```

## Properties
<a name="aws-resource-ec2-vpcendpointconnectionnotification-properties"></a>

`ConnectionEvents`  <a name="cfn-ec2-vpcendpointconnectionnotification-connectionevents"></a>
The endpoint events for which to receive notifications. Valid values are `Accept`, `Connect`, `Delete`, and `Reject`.  
*Required*: Yes  
*Type*: Array of String  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ConnectionNotificationArn`  <a name="cfn-ec2-vpcendpointconnectionnotification-connectionnotificationarn"></a>
The ARN of the SNS topic for the notifications.  
*Required*: Yes  
*Type*: String  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ServiceId`  <a name="cfn-ec2-vpcendpointconnectionnotification-serviceid"></a>
The ID of the endpoint service.  
*Required*: No  
*Type*: String  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

`VPCEndpointId`  <a name="cfn-ec2-vpcendpointconnectionnotification-vpcendpointid"></a>
The ID of the endpoint.  
*Required*: No  
*Type*: String  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

## Return values
<a name="aws-resource-ec2-vpcendpointconnectionnotification-return-values"></a>

### Ref
<a name="aws-resource-ec2-vpcendpointconnectionnotification-return-values-ref"></a>

When you pass the logical ID of this resource to the intrinsic `Ref` function, `Ref` returns the ID of the notification.

For more information about using the `Ref` function, see [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/intrinsic-function-reference-ref.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/intrinsic-function-reference-ref.html).

### Fn::GetAtt
<a name="aws-resource-ec2-vpcendpointconnectionnotification-return-values-fn--getatt"></a>

The `Fn::GetAtt` intrinsic function returns a value for a specified attribute of this type. The following are the available attributes and sample return values.

For more information about using the `Fn::GetAtt` intrinsic function, see [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/intrinsic-function-reference-getatt.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/intrinsic-function-reference-getatt.html).

#### 
<a name="aws-resource-ec2-vpcendpointconnectionnotification-return-values-fn--getatt-fn--getatt"></a>

`VPCEndpointConnectionNotificationId`  <a name="VPCEndpointConnectionNotificationId-fn::getatt"></a>
The ID of the notification.