# ListFlowExecutionEvents
Lists events that occurred during a flow execution. Events provide detailed information about the execution progress, including node inputs and outputs, flow inputs and outputs, condition results, and failure events.
**Note**
Flow executions is in preview release for Amazon Bedrock and is subject to change.
## Request Syntax
```
GET /flows/flowIdentifier/aliases/flowAliasIdentifier/executions/executionIdentifier/events?eventType=eventType&maxResults=maxResults&nextToken=nextToken HTTP/1.1
```
## URI Request Parameters
The request uses the following URI parameters.
** [eventType](#API_agent-runtime_ListFlowExecutionEvents_RequestSyntax) **
The type of events to retrieve. Specify `Node` for node-level events or `Flow` for flow-level events.
Valid Values: `Node | Flow`
Required: Yes
** [executionIdentifier](#API_agent-runtime_ListFlowExecutionEvents_RequestSyntax) **
The unique identifier of the flow execution.
Length Constraints: Minimum length of 0. Maximum length of 2048.
Pattern: `[a-zA-Z0-9-]{1,36}$|^(arn:aws:bedrock:[a-z0-9-]{1,20}:[0-9]{12}:flow/[0-9a-zA-Z]{10}/alias/[0-9a-zA-Z]{10}/execution/[a-zA-Z0-9-]{1,36})`
Required: Yes
** [flowAliasIdentifier](#API_agent-runtime_ListFlowExecutionEvents_RequestSyntax) **
The unique identifier of the flow alias used for the execution.
Length Constraints: Minimum length of 0. Maximum length of 2048.
Pattern: `(arn:aws:bedrock:[a-z0-9-]{1,20}:[0-9]{12}:flow/[0-9a-zA-Z]{10}/alias/[0-9a-zA-Z]{10})|(\bTSTALIASID\b|[0-9a-zA-Z]+)`
Required: Yes
** [flowIdentifier](#API_agent-runtime_ListFlowExecutionEvents_RequestSyntax) **
The unique identifier of the flow.
Length Constraints: Minimum length of 0. Maximum length of 2048.
Pattern: `(arn:aws:bedrock:[a-z0-9-]{1,20}:[0-9]{12}:flow/[0-9a-zA-Z]{10})|([0-9a-zA-Z]{10})`
Required: Yes
** [maxResults](#API_agent-runtime_ListFlowExecutionEvents_RequestSyntax) **
The maximum number of events to return in a single response. If more events exist than the specified maxResults value, a token is included in the response so that the remaining results can be retrieved.
Valid Range: Minimum value of 1. Maximum value of 1000.
** [nextToken](#API_agent-runtime_ListFlowExecutionEvents_RequestSyntax) **
A token to retrieve the next set of results. This value is returned in the response if more results are available.
Length Constraints: Minimum length of 1. Maximum length of 2048.
Pattern: `\S*`
## Request Body
The request does not have a request body.
## Response Syntax
```
HTTP/1.1 200
Content-type: application/json
{
"flowExecutionEvents": [
{ ... }
],
"nextToken": "string"
}
```
## Response Elements
If the action is successful, the service sends back an HTTP 200 response.
The following data is returned in JSON format by the service.
** [flowExecutionEvents](#API_agent-runtime_ListFlowExecutionEvents_ResponseSyntax) **
A list of events that occurred during the flow execution. Events can include node inputs and outputs, flow inputs and outputs, condition results, and failure events.
Type: Array of [FlowExecutionEvent](API_agent-runtime_FlowExecutionEvent.md) objects
Array Members: Minimum number of 0 items. Maximum number of 10 items.
** [nextToken](#API_agent-runtime_ListFlowExecutionEvents_ResponseSyntax) **
A token to retrieve the next set of results. This value is returned if more results are available.
Type: String
Length Constraints: Minimum length of 1. Maximum length of 2048.
Pattern: `\S*`
## Errors
For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).
** AccessDeniedException **
The request is denied because of missing access permissions. Check your permissions and retry your request.
HTTP Status Code: 403
** InternalServerException **
An internal server error occurred. Retry your request.
** reason **
The reason for the exception. If the reason is `BEDROCK_MODEL_INVOCATION_SERVICE_UNAVAILABLE`, the model invocation service is unavailable. Retry your request.
HTTP Status Code: 500
** ResourceNotFoundException **
The specified resource Amazon Resource Name (ARN) was not found. Check the Amazon Resource Name (ARN) and try your request again.
HTTP Status Code: 404
** ThrottlingException **
The number of requests exceeds the limit. Resubmit your request later.
HTTP Status Code: 429
** ValidationException **
Input validation failed. Check your request parameters and retry the request.
HTTP Status Code: 400
## See Also
For more information about using this API in one of the language-specific AWS SDKs, see the following:
+ [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/bedrock-agent-runtime-2023-07-26/ListFlowExecutionEvents)
+ [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/bedrock-agent-runtime-2023-07-26/ListFlowExecutionEvents)
+ [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/bedrock-agent-runtime-2023-07-26/ListFlowExecutionEvents)
+ [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/bedrock-agent-runtime-2023-07-26/ListFlowExecutionEvents)
+ [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/bedrock-agent-runtime-2023-07-26/ListFlowExecutionEvents)
+ [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/bedrock-agent-runtime-2023-07-26/ListFlowExecutionEvents)
+ [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/bedrock-agent-runtime-2023-07-26/ListFlowExecutionEvents)
+ [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/bedrock-agent-runtime-2023-07-26/ListFlowExecutionEvents)
+ [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/bedrock-agent-runtime-2023-07-26/ListFlowExecutionEvents)
+ [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/bedrock-agent-runtime-2023-07-26/ListFlowExecutionEvents)