# Log Amazon IoT SiteWise API calls with Amazon CloudTrail
<a name="logging-using-cloudtrail"></a>

Amazon IoT SiteWise is integrated with Amazon CloudTrail, a service that provides a record of actions taken by a user, role, or an Amazon service in Amazon IoT SiteWise. CloudTrail captures API calls for Amazon IoT SiteWise as events. The calls captured include calls from the Amazon IoT SiteWise console and code calls to the Amazon IoT SiteWise API operations. If you create a trail, you can activate continuous delivery of CloudTrail events to an Amazon S3 bucket, including events for Amazon IoT SiteWise. If you don't configure a trail, you can still view the most recent events in the CloudTrail console in **Event history**. Using the information collected by CloudTrail, you can determine the request that was made to Amazon IoT SiteWise, the IP address from which the request was made, who made the request, when it was made, and additional details. 

For more information about CloudTrail, see the [Amazon CloudTrail User Guide](https://docs.amazonaws.cn/awscloudtrail/latest/userguide/).

## Amazon IoT SiteWise information in CloudTrail
<a name="sitewise-info-in-cloudtrail"></a>

CloudTrail is activated on your Amazon account when you create the account. When supported event activity occurs in Amazon IoT SiteWise, that activity is recorded in a CloudTrail event along with other Amazon service events in **Event history**. You can view, search, and download recent events in your Amazon account. For more information, see [Viewing events with CloudTrail event history](https://docs.amazonaws.cn/awscloudtrail/latest/userguide/view-cloudtrail-events.html). 

For an ongoing record of events in your Amazon account, including events for Amazon IoT SiteWise, create a trail. A *trail* enables CloudTrail to deliver log files to an Amazon S3 bucket. By default, when you create a trail in the console, the trail applies to all Amazon Regions. The trail logs events from all Regions in the Amazon partition and delivers the log files to the Amazon S3 bucket that you specify. Additionally, you can configure other Amazon services to further analyze and act upon the event data collected in CloudTrail logs. For more information, see the following: 
+ [Overview for creating a trail](https://docs.amazonaws.cn/awscloudtrail/latest/userguide/cloudtrail-create-and-update-a-trail.html)
+ [CloudTrail supported services and integrations](https://docs.amazonaws.cn/awscloudtrail/latest/userguide/cloudtrail-aws-service-specific-topics.html#cloudtrail-aws-service-specific-topics-integrations)
+  [Configuring Amazon SNS notifications for CloudTrail](https://docs.amazonaws.cn/awscloudtrail/latest/userguide/configure-sns-notifications-for-cloudtrail.html)
+ [Receiving CloudTrail log files from multiple Regions](https://docs.amazonaws.cn/awscloudtrail/latest/userguide/receive-cloudtrail-log-files-from-multiple-regions.html) and [Receiving CloudTrail log files from multiple accounts](https://docs.amazonaws.cn/awscloudtrail/latest/userguide/cloudtrail-receive-logs-from-multiple-accounts.html)

Every event or log entry contains information about who generated the request. The identity information helps you determine the following: 
+ Whether the request was made with root or Amazon Identity and Access Management (IAM) user credentials.
+ Whether the request was made with temporary security credentials for a role or federated user.
+ Whether the request was made by another Amazon service.

For more information, see the [CloudTrail userIdentity element](https://docs.amazonaws.cn/awscloudtrail/latest/userguide/cloudtrail-event-reference-user-identity.html).

## Amazon IoT SiteWise data events in CloudTrail
<a name="service-name-data-events-cloudtrail"></a>

[Data events](https://docs.amazonaws.cn/awscloudtrail/latest/userguide/logging-data-events-with-cloudtrail.html#logging-data-events) provide information about the resource operations performed on or in a resource (for example, reading or writing to an Amazon S3 object). These are also known as data plane operations. Data events are often high-volume activities. By default, CloudTrail doesn’t log data events. The CloudTrail **Event history** doesn't record data events.

Additional charges apply for data events. For more information about CloudTrail pricing, see [Amazon CloudTrail Pricing](https://www.amazonaws.cn/cloudtrail/pricing/).

You can log data events for the Amazon IoT SiteWise resource types by using the CloudTrail console, Amazon CLI, or CloudTrail API operations. The [table](#data-events-table) in this section shows the resource types available for Amazon IoT SiteWise.
+ To log data events using the CloudTrail console, create a [trail](https://docs.amazonaws.cn/awscloudtrail/latest/userguide/cloudtrail-create-a-trail-using-the-console-first-time.html#creating-a-trail-in-the-console) or [event data store](https://docs.amazonaws.cn/awscloudtrail/latest/userguide/query-event-data-store-cloudtrail.html) to log data events, or [update an existing trail or event data store](https://docs.amazonaws.cn/awscloudtrail/latest/userguide/logging-data-events-with-cloudtrail.html#logging-data-events-console) to log data events.

  1. Choose **Data events** to log data events.

  1. From the **Data event type** list, choose the resource type for which you want to log data events.

  1. Choose the log selector template you want to use. You can log all data events for the resource type, log all `readOnly` events, log all `writeOnly` events, or create a custom log selector template to filter on the `readOnly`, `eventName`, and `resources.ARN` fields.
+ To log data events using the Amazon CLI, configure the `--advanced-event-selectors` parameter to set the `eventCategory` field equal to `Data` and the `resources.type` field equal to the resource type value (see [table](#data-events-table)). You can add conditions to filter on the values of the `readOnly`, `eventName`, and `resources.ARN` fields.
  + To configure a trail to log data events, run the [Amazon CloudTrail put-event-selectors](https://docs.amazonaws.cn/cli/latest/reference/cloudtrail/put-event-selectors.html) command. For more information, see [Logging data events for trails with the Amazon CLI](https://docs.amazonaws.cn/awscloudtrail/latest/userguide/logging-data-events-with-cloudtrail.html#logging-data-events-CLI-trail-examples).
  + To configure an event data store to log data events, run the [Amazon CloudTrail create-event-data-store](https://docs.amazonaws.cn/cli/latest/reference/cloudtrail/create-event-data-store.html) command to create a new event data store to log data events, or run the [Amazon CloudTrail update-event-data-store](https://docs.amazonaws.cn/cli/latest/reference/cloudtrail/update-event-data-store.html) command to update an existing event data store. For more information, see [ Logging data events for event data stores with the Amazon CLI](https://docs.amazonaws.cn/awscloudtrail/latest/userguide/logging-data-events-with-cloudtrail.html#logging-data-events-CLI-eds-examples).

The following table lists the Amazon IoT SiteWise resource types. The **Data event type (console)** column shows the value to choose from the **Data event type** list on the CloudTrail console. The **resources.type value** column shows the `resources.type` value, which you would specify when configuring advanced event selectors using the Amazon CLI or CloudTrail APIs. The **Data APIs logged to CloudTrail** column shows the API calls logged to CloudTrail for the resource type. 


| Data event type (console) | resources.type value | Data APIs logged to CloudTrail\$1 | 
| --- | --- | --- | 
| Amazon IoT SiteWise asset |  Amazon::IoTSiteWise::Asset  |  [\[See the AWS documentation website for more details\]](http://docs.amazonaws.cn/en_us/iot-sitewise/latest/userguide/logging-using-cloudtrail.html)  | 
| Amazon IoT SiteWise time series |  Amazon::IoTSiteWise::TimeSeries  |  [\[See the AWS documentation website for more details\]](http://docs.amazonaws.cn/en_us/iot-sitewise/latest/userguide/logging-using-cloudtrail.html)  | 
| Amazon IoT SiteWise Assistant |  Amazon::SitewiseAssistant::Conversation  |  [\[See the AWS documentation website for more details\]](http://docs.amazonaws.cn/en_us/iot-sitewise/latest/userguide/logging-using-cloudtrail.html)  | 

**Note**  
 The resources.type logged in the Cloudtrail event depends on the identifier used in the API request. If an asset id is specified in the request then the Asset resources.type is logged, else the TimeSeries resources.type is logged. 

\$1You can configure advanced event selectors to filter on the `eventName`, `readOnly`, and `resources.ARN` fields to log only those events that are important to you. For more information about these fields, see [https://docs.amazonaws.cn/awscloudtrail/latest/APIReference/API_AdvancedFieldSelector.html](https://docs.amazonaws.cn/awscloudtrail/latest/APIReference/API_AdvancedFieldSelector.html).

## Amazon IoT SiteWise management events in CloudTrail
<a name="service-name-management-events-cloudtrail"></a>

[Logging management events](https://docs.amazonaws.cn/awscloudtrail/latest/userguide/logging-management-events-with-cloudtrail.html) provide information about management operations that are performed on resources in your Amazon account. These are also known as control plane operations. By default, CloudTrail logs management events.

Amazon IoT SiteWise logs all Amazon IoT SiteWise control plane operations as management events. For a list of the Amazon IoT SiteWise control plane operations that Amazon IoT SiteWise logs to CloudTrail, see the [Amazon IoT SiteWise API Reference](https://docs.amazonaws.cn/iot-sitewise/latest/APIReference/API_Operations.html).

## Example: Amazon IoT SiteWise log file entries
<a name="understanding-sitewise-entries"></a>

A trail is a configuration that enables delivery of events as log files to an Amazon S3 bucket that you specify. CloudTrail log files contain one or more log entries. An event represents a single request from any source and includes information about the requested operation, the date and time of the operation, request parameters, and so on. CloudTrail log files aren't an ordered stack trace of the public API calls, so they don't appear in any specific order.

The following example shows a CloudTrail log entry that demonstrates the `CreateAsset` operation.

```
{
  "eventVersion": "1.05",
  "userIdentity": {
    "type": "IAMUser",
    "principalId": "AIDACKCEVSQ6C2EXAMPLE",
    "arn": "arn:aws:iam::123456789012:user/Administrator",
    "accountId": "123456789012",
    "accessKeyId": "AKIAIOSFODNN7EXAMPLE",
    "userName": "Administrator",
    "sessionContext": {
      "sessionIssuer": {},
      "webIdFederationData": {},
      "attributes": {
        "mfaAuthenticated": "false",
        "creationDate": "2020-03-11T17:26:40Z"
      }
    },
    "invokedBy": "signin.amazonaws.com"
  },
  "eventTime": "2020-03-11T18:01:22Z",
  "eventSource": "iotsitewise.amazonaws.com",
  "eventName": "CreateAsset",
  "awsRegion": "us-east-1",
  "sourceIPAddress": "203.0.113.0",
  "userAgent": "signin.amazonaws.com",
  "requestParameters": {
    "assetName": "Wind Turbine 1",
    "assetModelId": "a1b2c3d4-5678-90ab-cdef-11111EXAMPLE",
    "clientToken": "a1b2c3d4-5678-90ab-cdef-00000EXAMPLE"
  },
  "responseElements": {
    "assetId": "a1b2c3d4-5678-90ab-cdef-22222EXAMPLE",
    "assetArn": "arn:aws:iotsitewise:us-east-1:123456789012:asset/a1b2c3d4-5678-90ab-cdef-22222EXAMPLE",
    "assetStatus": {
      "state": "CREATING"
    }
  },
  "requestID": "a1b2c3d4-5678-90ab-cdef-aaaaaEXAMPLE",
  "eventID": "a1b2c3d4-5678-90ab-cdef-bbbbbEXAMPLE",
  "eventType": "AwsApiCall",
  "recipientAccountId": "123456789012"
}
```