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# AWS::AppSync::Api EventConfig
<a name="aws-properties-appsync-api-eventconfig"></a>

Describes the authorization configuration for connections, message publishing, message subscriptions, and logging for an Event API.

## Syntax
<a name="aws-properties-appsync-api-eventconfig-syntax"></a>

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

### JSON
<a name="aws-properties-appsync-api-eventconfig-syntax.json"></a>

```
{
  "[AuthProviders](#cfn-appsync-api-eventconfig-authproviders)" : [ AuthProvider, ... ],
  "[ConnectionAuthModes](#cfn-appsync-api-eventconfig-connectionauthmodes)" : [ AuthMode, ... ],
  "[DefaultPublishAuthModes](#cfn-appsync-api-eventconfig-defaultpublishauthmodes)" : [ AuthMode, ... ],
  "[DefaultSubscribeAuthModes](#cfn-appsync-api-eventconfig-defaultsubscribeauthmodes)" : [ AuthMode, ... ],
  "[LogConfig](#cfn-appsync-api-eventconfig-logconfig)" : EventLogConfig
}
```

### YAML
<a name="aws-properties-appsync-api-eventconfig-syntax.yaml"></a>

```
  [AuthProviders](#cfn-appsync-api-eventconfig-authproviders): 
    - AuthProvider
  [ConnectionAuthModes](#cfn-appsync-api-eventconfig-connectionauthmodes): 
    - AuthMode
  [DefaultPublishAuthModes](#cfn-appsync-api-eventconfig-defaultpublishauthmodes): 
    - AuthMode
  [DefaultSubscribeAuthModes](#cfn-appsync-api-eventconfig-defaultsubscribeauthmodes): 
    - AuthMode
  [LogConfig](#cfn-appsync-api-eventconfig-logconfig): 
    EventLogConfig
```

## Properties
<a name="aws-properties-appsync-api-eventconfig-properties"></a>

`AuthProviders`  <a name="cfn-appsync-api-eventconfig-authproviders"></a>
A list of authorization providers.  
*Required*: Yes  
*Type*: Array of [AuthProvider](aws-properties-appsync-api-authprovider.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ConnectionAuthModes`  <a name="cfn-appsync-api-eventconfig-connectionauthmodes"></a>
A list of valid authorization modes for the Event API connections.  
*Required*: Yes  
*Type*: Array of [AuthMode](aws-properties-appsync-api-authmode.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`DefaultPublishAuthModes`  <a name="cfn-appsync-api-eventconfig-defaultpublishauthmodes"></a>
A list of valid authorization modes for the Event API publishing.  
*Required*: Yes  
*Type*: Array of [AuthMode](aws-properties-appsync-api-authmode.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`DefaultSubscribeAuthModes`  <a name="cfn-appsync-api-eventconfig-defaultsubscribeauthmodes"></a>
A list of valid authorization modes for the Event API subscriptions.  
*Required*: Yes  
*Type*: Array of [AuthMode](aws-properties-appsync-api-authmode.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`LogConfig`  <a name="cfn-appsync-api-eventconfig-logconfig"></a>
The CloudWatch Logs configuration for the Event API.  
*Required*: No  
*Type*: [EventLogConfig](aws-properties-appsync-api-eventlogconfig.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)