# ListLensReviewImprovements


List the improvements of a particular lens review.

## Request Syntax


```
GET /workloads/WorkloadId/lensReviews/LensAlias/improvements?MaxResults=MaxResults&MilestoneNumber=MilestoneNumber&NextToken=NextToken&PillarId=PillarId&QuestionPriority=QuestionPriority HTTP/1.1
```

## URI Request Parameters


The request uses the following URI parameters.

 ** [LensAlias](#API_ListLensReviewImprovements_RequestSyntax) **   <a name="wellarchitected-ListLensReviewImprovements-request-uri-LensAlias"></a>
The alias of the lens.  
For AWS official lenses, this is either the lens alias, such as `serverless`, or the lens ARN, such as `arn:aws:wellarchitected:us-east-1::lens/serverless`. Note that some operations (such as ExportLens and CreateLensShare) are not permitted on AWS official lenses.  
For custom lenses, this is the lens ARN, such as `arn:aws:wellarchitected:us-west-2:123456789012:lens/0123456789abcdef01234567890abcdef`.   
Each lens is identified by its [LensSummary:LensAlias](API_LensSummary.md#wellarchitected-Type-LensSummary-LensAlias).  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Required: Yes

 ** [MaxResults](#API_ListLensReviewImprovements_RequestSyntax) **   <a name="wellarchitected-ListLensReviewImprovements-request-uri-MaxResults"></a>
The maximum number of results to return for this request.  
Valid Range: Minimum value of 1. Maximum value of 100.

 ** [MilestoneNumber](#API_ListLensReviewImprovements_RequestSyntax) **   <a name="wellarchitected-ListLensReviewImprovements-request-uri-MilestoneNumber"></a>
The milestone number.  
A workload can have a maximum of 100 milestones.  
Valid Range: Minimum value of 1. Maximum value of 100.

 ** [NextToken](#API_ListLensReviewImprovements_RequestSyntax) **   <a name="wellarchitected-ListLensReviewImprovements-request-uri-NextToken"></a>
The token to use to retrieve the next set of results.

 ** [PillarId](#API_ListLensReviewImprovements_RequestSyntax) **   <a name="wellarchitected-ListLensReviewImprovements-request-uri-PillarId"></a>
The ID used to identify a pillar, for example, `security`.  
A pillar is identified by its [PillarReviewSummary:PillarId](API_PillarReviewSummary.md#wellarchitected-Type-PillarReviewSummary-PillarId).  
Length Constraints: Minimum length of 1. Maximum length of 64.

 ** [QuestionPriority](#API_ListLensReviewImprovements_RequestSyntax) **   <a name="wellarchitected-ListLensReviewImprovements-request-uri-QuestionPriority"></a>
The priority of the question.  
Valid Values: `PRIORITIZED | NONE` 

 ** [WorkloadId](#API_ListLensReviewImprovements_RequestSyntax) **   <a name="wellarchitected-ListLensReviewImprovements-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 does not have a request body.

## Response Syntax


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

{
   "ImprovementSummaries": [ 
      { 
         "ImprovementPlans": [ 
            { 
               "ChoiceId": "string",
               "DisplayText": "string",
               "ImprovementPlanUrl": "string"
            }
         ],
         "ImprovementPlanUrl": "string",
         "JiraConfiguration": { 
            "JiraIssueUrl": "string",
            "LastSyncedTime": number
         },
         "PillarId": "string",
         "QuestionId": "string",
         "QuestionTitle": "string",
         "Risk": "string"
      }
   ],
   "LensAlias": "string",
   "LensArn": "string",
   "MilestoneNumber": number,
   "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.

 ** [ImprovementSummaries](#API_ListLensReviewImprovements_ResponseSyntax) **   <a name="wellarchitected-ListLensReviewImprovements-response-ImprovementSummaries"></a>
List of improvement summaries of lens review in a workload.  
Type: Array of [ImprovementSummary](API_ImprovementSummary.md) objects

 ** [LensAlias](#API_ListLensReviewImprovements_ResponseSyntax) **   <a name="wellarchitected-ListLensReviewImprovements-response-LensAlias"></a>
The alias of the lens.  
For AWS official lenses, this is either the lens alias, such as `serverless`, or the lens ARN, such as `arn:aws:wellarchitected:us-east-1::lens/serverless`. Note that some operations (such as ExportLens and CreateLensShare) are not permitted on AWS official lenses.  
For custom lenses, this is the lens ARN, such as `arn:aws:wellarchitected:us-west-2:123456789012:lens/0123456789abcdef01234567890abcdef`.   
Each lens is identified by its [LensSummary:LensAlias](API_LensSummary.md#wellarchitected-Type-LensSummary-LensAlias).  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.

 ** [LensArn](#API_ListLensReviewImprovements_ResponseSyntax) **   <a name="wellarchitected-ListLensReviewImprovements-response-LensArn"></a>
The ARN for the lens.  
Type: String

 ** [MilestoneNumber](#API_ListLensReviewImprovements_ResponseSyntax) **   <a name="wellarchitected-ListLensReviewImprovements-response-MilestoneNumber"></a>
The milestone number.  
A workload can have a maximum of 100 milestones.  
Type: Integer  
Valid Range: Minimum value of 1. Maximum value of 100.

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

 ** [WorkloadId](#API_ListLensReviewImprovements_ResponseSyntax) **   <a name="wellarchitected-ListLensReviewImprovements-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/ListLensReviewImprovements) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/wellarchitected-2020-03-31/ListLensReviewImprovements) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/wellarchitected-2020-03-31/ListLensReviewImprovements) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/wellarchitected-2020-03-31/ListLensReviewImprovements) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/wellarchitected-2020-03-31/ListLensReviewImprovements) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/wellarchitected-2020-03-31/ListLensReviewImprovements) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/wellarchitected-2020-03-31/ListLensReviewImprovements) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/wellarchitected-2020-03-31/ListLensReviewImprovements) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/wellarchitected-2020-03-31/ListLensReviewImprovements) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/wellarchitected-2020-03-31/ListLensReviewImprovements)