StartExperiment - AWS Fault Injection Service


Starts running an experiment from the specified experiment template.

Request Syntax

POST /experiments HTTP/1.1 Content-type: application/json { "clientToken": "string", "experimentOptions": { "actionsMode": "string" }, "experimentTemplateId": "string", "tags": { "string" : "string" } }

URI Request Parameters

The request does not use any URI parameters.

Request Body

The request accepts the following data in JSON format.


Unique, case-sensitive identifier that you provide to ensure the idempotency of the request.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 1024.

Pattern: [\S]+

Required: Yes


The experiment options for running the experiment.

Type: StartExperimentExperimentOptionsInput object

Required: No


The ID of the experiment template.

Type: String

Length Constraints: Maximum length of 64.

Pattern: [\S]+

Required: Yes


The tags to apply to the experiment.

Type: String to string map

Map Entries: Maximum number of 50 items.

Key Length Constraints: Maximum length of 128.

Key Pattern: [\s\S]+

Value Length Constraints: Maximum length of 256.

Value Pattern: [\s\S]*

Required: No

Response Syntax

HTTP/1.1 200 Content-type: application/json { "experiment": { "actions": { "string" : { "actionId": "string", "description": "string", "endTime": number, "parameters": { "string" : "string" }, "startAfter": [ "string" ], "startTime": number, "state": { "reason": "string", "status": "string" }, "targets": { "string" : "string" } } }, "arn": "string", "creationTime": number, "endTime": number, "experimentOptions": { "accountTargeting": "string", "actionsMode": "string", "emptyTargetResolutionMode": "string" }, "experimentTemplateId": "string", "id": "string", "logConfiguration": { "cloudWatchLogsConfiguration": { "logGroupArn": "string" }, "logSchemaVersion": number, "s3Configuration": { "bucketName": "string", "prefix": "string" } }, "roleArn": "string", "startTime": number, "state": { "reason": "string", "status": "string" }, "stopConditions": [ { "source": "string", "value": "string" } ], "tags": { "string" : "string" }, "targetAccountConfigurationsCount": number, "targets": { "string" : { "filters": [ { "path": "string", "values": [ "string" ] } ], "parameters": { "string" : "string" }, "resourceArns": [ "string" ], "resourceTags": { "string" : "string" }, "resourceType": "string", "selectionMode": "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.


Information about the experiment.

Type: Experiment object


For information about the errors that are common to all actions, see Common Errors.


The request could not be processed because of a conflict.

HTTP Status Code: 409


The specified resource cannot be found.

HTTP Status Code: 404


You have exceeded your service quota.

HTTP Status Code: 402


The specified input is not valid, or fails to satisfy the constraints for 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: