# Logging AWS Glue API calls with AWS CloudTrail
Logging using CloudTrail

AWS Glue is integrated with AWS CloudTrail, a service that provides a record of actions taken by a user, role, or an AWS service in AWS Glue. CloudTrail captures all API calls for AWS Glue as events. The calls captured include calls from the AWS Glue console and code calls to the AWS Glue API operations. If you create a trail, you can enable continuous delivery of CloudTrail events to an Amazon S3 bucket, including events for AWS Glue. 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 AWS Glue, the IP address from which the request was made, who made the request, when it was made, and additional details. 

To learn more about CloudTrail, see the [AWS CloudTrail User Guide](https://docs.aws.amazon.com/awscloudtrail/latest/userguide/).

## AWS Glue information in CloudTrail


CloudTrail is enabled on your AWS account when you create the account. When activity occurs in AWS Glue, that activity is recorded in a CloudTrail event along with other AWS service events in **Event history**. You can view, search, and download recent events in your AWS account. For more information, see [Viewing Events with CloudTrail Event History](https://docs.aws.amazon.com/awscloudtrail/latest/userguide/view-cloudtrail-events.html). 

For an ongoing record of events in your AWS account, including events for AWS Glue, 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 AWS Regions. The trail logs events from all Regions in the AWS partition and delivers the log files to the Amazon S3 bucket that you specify. Additionally, you can configure other AWS services to further analyze and act upon the event data collected in CloudTrail logs. For more information, see the following: 
+ [Creating a trail for your AWS account](https://docs.aws.amazon.com/awscloudtrail/latest/userguide/cloudtrail-create-and-update-a-trail.html)
+ [CloudTrail supported services and integrations](https://docs.aws.amazon.com/awscloudtrail/latest/userguide/cloudtrail-aws-service-specific-topics.html#cloudtrail-aws-service-specific-topics-integrations)
+ [Configuring Amazon SNS Notifications for CloudTrail](https://docs.aws.amazon.com/awscloudtrail/latest/userguide/getting_notifications_top_level.html)
+ [Receiving CloudTrail Log Files from Multiple Regions](https://docs.aws.amazon.com/awscloudtrail/latest/userguide/receive-cloudtrail-log-files-from-multiple-regions.html) and [Receiving CloudTrail Log Files from Multiple Accounts](https://docs.aws.amazon.com/awscloudtrail/latest/userguide/cloudtrail-receive-logs-from-multiple-accounts.html)

All AWS Glue actions are logged by CloudTrail and are documented in the [AWS Glue API](aws-glue-api.md) . For example, calls to the `CreateDatabase`, `CreateTable` and `CreateScript` actions generate entries in the CloudTrail log files. 

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 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 AWS service.

For more information, see the [CloudTrail userIdentity Element](https://docs.aws.amazon.com/awscloudtrail/latest/userguide/cloudtrail-event-reference-user-identity.html).

However, CloudTrail doesn't log all information regarding calls. For example, it doesn't log certain sensitive information, such as the `ConnectionProperties` used in connection requests, and it logs a `null` instead of the responses returned by the following APIs:

```
BatchGetPartition       GetCrawlers          GetJobs          GetTable
CreateScript            GetCrawlerMetrics    GetJobRun        GetTables
GetCatalogImportStatus  GetDatabase          GetJobRuns       GetTableVersions
GetClassifier           GetDatabases         GetMapping       GetTrigger
GetClassifiers          GetDataflowGraph     GetObjects       GetTriggers
GetConnection           GetDevEndpoint       GetPartition     GetUserDefinedFunction
GetConnections          GetDevEndpoints      GetPartitions    GetUserDefinedFunctions
GetCrawler              GetJob               GetPlan
```

## Understanding AWS Glue log file entries


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 action, the date and time of the action, 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 `DeleteCrawler` action.

```
{
  "eventVersion": "1.05",
  "userIdentity": {
    "type": "IAMUser",
    "principalId": "AKIAIOSFODNN7EXAMPLE",
    "arn": "arn:aws:iam::123456789012:user/johndoe",
    "accountId": "123456789012",
    "accessKeyId": "AKIAIOSFODNN7EXAMPLE",
    "userName": "johndoe"
  },
  "eventTime": "2017-10-11T22:29:49Z",
  "eventSource": "glue.amazonaws.com",
  "eventName": "DeleteCrawler",
  "awsRegion": "us-east-1",
  "sourceIPAddress": "72.21.198.64",
  "userAgent": "aws-cli/1.11.148 Python/3.6.1 Darwin/16.7.0 botocore/1.7.6",
  "requestParameters": {
    "name": "tes-alpha"
  },
  "responseElements": null,
  "requestID": "b16f4050-aed3-11e7-b0b3-75564a46954f",
  "eventID": "e73dd117-cfd1-47d1-9e2f-d1271cad838c",
  "eventType": "AwsApiCall",
  "recipientAccountId": "123456789012"
}
```

This example shows a CloudTrail log entry that demonstrates a `CreateConnection` action.

```
{
  "eventVersion": "1.05",
  "userIdentity": {
    "type": "IAMUser",
    "principalId": "AKIAIOSFODNN7EXAMPLE",
    "arn": "arn:aws:iam::123456789012:user/johndoe",
    "accountId": "123456789012",
    "accessKeyId": "AKIAIOSFODNN7EXAMPLE",
    "userName": "johndoe"
  },
  "eventTime": "2017-10-13T00:19:19Z",
  "eventSource": "glue.amazonaws.com",
  "eventName": "CreateConnection",
  "awsRegion": "us-east-1",
  "sourceIPAddress": "72.21.198.66",
  "userAgent": "aws-cli/1.11.148 Python/3.6.1 Darwin/16.7.0 botocore/1.7.6",
  "requestParameters": {
    "connectionInput": {
      "name": "test-connection-alpha",
      "connectionType": "JDBC",
      "physicalConnectionRequirements": {
        "subnetId": "subnet-323232",
        "availabilityZone": "us-east-1a",
        "securityGroupIdList": [
          "sg-12121212"
        ]
      }
    }
  },
  "responseElements": null,
  "requestID": "27136ebc-afac-11e7-a7d6-ab217e5c3f19",
  "eventID": "e8b3baeb-c511-4597-880f-c16210c60a4a",
  "eventType": "AwsApiCall",
  "recipientAccountId": "123456789012"
}
```