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# CloudWatchLogs
<a name="sam-property-function-cloudwatchlogs"></a>

描述 `CloudWatchLogs` 事件源类型的对象。

此事件生成 [https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-logs-subscriptionfilter.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-logs-subscriptionfilter.html) 资源、指定订阅筛选器并将其与指定的日志组关联。

## 语法
<a name="sam-property-function-cloudwatchlogs-syntax"></a>

要在 AWS Serverless Application Model (AWS SAM) 模板中声明此实体，请使用以下语法。

### YAML
<a name="sam-property-function-cloudwatchlogs-syntax.yaml"></a>

```
  [FilterPattern](#sam-function-cloudwatchlogs-filterpattern): String
  [LogGroupName](#sam-function-cloudwatchlogs-loggroupname): String
```

## Properties
<a name="sam-property-function-cloudwatchlogs-properties"></a>

 `FilterPattern`   <a name="sam-function-cloudwatchlogs-filterpattern"></a>
限制传送到目标 AWS 资源的内容的筛选表达式。有关筛选器模式语法的更多信息，请参阅[筛选器和模式语法](https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/FilterAndPatternSyntax.html)。  
*类型*：字符串  
*是否必需*：是  
*CloudFormation 兼容性*：此属性直接传递给`AWS::Logs::SubscriptionFilter`资源的`[FilterPattern](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-logs-subscriptionfilter.html#cfn-cwl-subscriptionfilter-filterpattern)`属性。

 `LogGroupName`   <a name="sam-function-cloudwatchlogs-loggroupname"></a>
要与订阅筛选器关联的日志组。如果筛选模式与日志事件匹配，则所有上传到该日志组的日志事件都将被筛选并传送到指定的 AWS 资源。  
*类型*：字符串  
*是否必需*：是  
*CloudFormation 兼容性*：此属性直接传递给`AWS::Logs::SubscriptionFilter`资源的`[LogGroupName](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-logs-subscriptionfilter.html#cfn-cwl-subscriptionfilter-loggroupname)`属性。

## 示例
<a name="sam-property-function-cloudwatchlogs--examples"></a>

### Cloudwatchlogs 订阅筛选器
<a name="sam-property-function-cloudwatchlogs--examples--cloudwatchlogs-subscription-filter"></a>

Cloudwatchlog 订阅筛选示例

#### YAML
<a name="sam-property-function-cloudwatchlogs--examples--cloudwatchlogs-subscription-filter--yaml"></a>

```
CWLog:
  Type: CloudWatchLogs
  Properties:
    LogGroupName:
      Ref: CloudWatchLambdaLogsGroup
    FilterPattern: My pattern
```