Request Syntax URI Request Parameters Request Body Response Syntax Response Elements Errors See Also

ListEnvironments

Important

AWS Mainframe Modernization Service (Managed Runtime Environment experience) will no longer be open to new customers starting on November 7, 2025. If you would like to use the service, please sign up prior to November 7, 2025. For capabilities similar to AWS Mainframe Modernization Service (Managed Runtime Environment experience) explore AWS Mainframe Modernization Service (Self-Managed Experience). Existing customers can continue to use the service as normal. For more information, see AWS Mainframe Modernization availability change.

Lists the runtime environments.

Request Syntax


GET /environments?engineType=engineType&maxResults=maxResults&names=names&nextToken=nextToken HTTP/1.1

URI Request Parameters

The request uses the following URI parameters.

engineType

The engine type for the runtime environment.

Valid Values: microfocus | bluage

maxResults

The maximum number of runtime environments to return.

Valid Range: Minimum value of 1. Maximum value of 2000.

names

The names of the runtime environments. Must be unique within the account.

Array Members: Minimum number of 1 item. Maximum number of 10 items.

Pattern: [A-Za-z0-9][A-Za-z0-9_\-]{1,59}

nextToken

A pagination token to control the number of runtime environments displayed in the list.

Pattern: \S{1,2000}

Request Body

The request does not have a request body.

Response Syntax


HTTP/1.1 200
Content-type: application/json

{
   "environments": [ 
      { 
         "creationTime": number,
         "engineType": "string",
         "engineVersion": "string",
         "environmentArn": "string",
         "environmentId": "string",
         "instanceType": "string",
         "name": "string",
         "networkType": "string",
         "status": "string"
      }
   ],
   "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.

environments

Returns a list of summary details for all the runtime environments in your account.

Type: Array of EnvironmentSummary objects

nextToken

A pagination token that's returned when the response doesn't contain all the runtime environments.

Type: String

Pattern: \S{1,2000}

Errors

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

AccessDeniedException

The account or role doesn't have the right permissions to make the request.

HTTP Status Code: 403

InternalServerException

An unexpected error occurred during the processing of the request.

retryAfterSeconds: The number of seconds to wait before retrying the request.

HTTP Status Code: 500

ThrottlingException

The number of requests made exceeds the limit.

quotaCode: The identifier of the throttled request.
retryAfterSeconds: The number of seconds to wait before retrying the request.
serviceCode: The identifier of the service that the throttled request was made to.

HTTP Status Code: 429

ValidationException

One or more parameters provided in the request is not valid.

fieldList: The list of fields that failed service validation.
reason: The reason why it failed service validation.

HTTP Status Code: 400