# ListMilestones


List all milestones for an existing workload.

## Request Syntax


```
POST /workloads/WorkloadId/milestonesSummaries HTTP/1.1
Content-type: application/json

{
   "MaxResults": number,
   "NextToken": "string"
}
```

## URI Request Parameters


The request uses the following URI parameters.

 ** [WorkloadId](#API_ListMilestones_RequestSyntax) **   <a name="wellarchitected-ListMilestones-request-uri-WorkloadId"></a>
The ID assigned to the workload. This ID is unique within an AWS Region.  
Length Constraints: Fixed length of 32.  
Pattern: `[0-9a-f]{32}`   
Required: Yes

## Request Body


The request accepts the following data in JSON format.

 ** [MaxResults](#API_ListMilestones_RequestSyntax) **   <a name="wellarchitected-ListMilestones-request-MaxResults"></a>
The maximum number of results to return for this request.  
Type: Integer  
Valid Range: Minimum value of 1. Maximum value of 50.  
Required: No

 ** [NextToken](#API_ListMilestones_RequestSyntax) **   <a name="wellarchitected-ListMilestones-request-NextToken"></a>
The token to use to retrieve the next set of results.  
Type: String  
Required: No

## Response Syntax


```
HTTP/1.1 200
Content-type: application/json

{
   "MilestoneSummaries": [ 
      { 
         "MilestoneName": "string",
         "MilestoneNumber": number,
         "RecordedAt": number,
         "WorkloadSummary": { 
            "ImprovementStatus": "string",
            "Lenses": [ "string" ],
            "Owner": "string",
            "PrioritizedRiskCounts": { 
               "string" : number 
            },
            "Profiles": [ 
               { 
                  "ProfileArn": "string",
                  "ProfileVersion": "string"
               }
            ],
            "RiskCounts": { 
               "string" : number 
            },
            "UpdatedAt": number,
            "WorkloadArn": "string",
            "WorkloadId": "string",
            "WorkloadName": "string"
         }
      }
   ],
   "NextToken": "string",
   "WorkloadId": "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.

 ** [MilestoneSummaries](#API_ListMilestones_ResponseSyntax) **   <a name="wellarchitected-ListMilestones-response-MilestoneSummaries"></a>
A list of milestone summaries.  
Type: Array of [MilestoneSummary](API_MilestoneSummary.md) objects

 ** [NextToken](#API_ListMilestones_ResponseSyntax) **   <a name="wellarchitected-ListMilestones-response-NextToken"></a>
The token to use to retrieve the next set of results.  
Type: String

 ** [WorkloadId](#API_ListMilestones_ResponseSyntax) **   <a name="wellarchitected-ListMilestones-response-WorkloadId"></a>
The ID assigned to the workload. This ID is unique within an AWS Region.  
Type: String  
Length Constraints: Fixed length of 32.  
Pattern: `[0-9a-f]{32}` 

## Errors


For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).

 ** AccessDeniedException **   
User does not have sufficient access to perform this action.    
 ** Message **   
Description of the error.
HTTP Status Code: 403

 ** InternalServerException **   
There is a problem with the AWS Well-Architected Tool API service.    
 ** Message **   
Description of the error.
HTTP Status Code: 500

 ** ResourceNotFoundException **   
The requested resource was not found.    
 ** Message **   
Description of the error.  
 ** ResourceId **   
Identifier of the resource affected.  
 ** ResourceType **   
Type of the resource affected.
HTTP Status Code: 404

 ** ThrottlingException **   
Request was denied due to request throttling.    
 ** Message **   
Description of the error.  
 ** QuotaCode **   
Service Quotas requirement to identify originating quota.  
 ** ServiceCode **   
Service Quotas requirement to identify originating service.
HTTP Status Code: 429

 ** ValidationException **   
The user input is not valid.    
 ** Fields **   
The fields that caused the error, if applicable.  
 ** Message **   
Description of the error.  
 ** Reason **   
The reason why the request failed validation.
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/wellarchitected-2020-03-31/ListMilestones) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/wellarchitected-2020-03-31/ListMilestones) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/wellarchitected-2020-03-31/ListMilestones) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/wellarchitected-2020-03-31/ListMilestones) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/wellarchitected-2020-03-31/ListMilestones) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/wellarchitected-2020-03-31/ListMilestones) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/wellarchitected-2020-03-31/ListMilestones) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/wellarchitected-2020-03-31/ListMilestones) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/wellarchitected-2020-03-31/ListMilestones) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/wellarchitected-2020-03-31/ListMilestones)