# UpdatePullRequestApprovalState
<a name="API_UpdatePullRequestApprovalState"></a>

Updates the state of a user's approval on a pull request. The user is derived from the signed-in account when the request is made.

## Request Syntax
<a name="API_UpdatePullRequestApprovalState_RequestSyntax"></a>

```
{
   "approvalState": "{{string}}",
   "pullRequestId": "{{string}}",
   "revisionId": "{{string}}"
}
```

## Request Parameters
<a name="API_UpdatePullRequestApprovalState_RequestParameters"></a>

For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).

The request accepts the following data in JSON format.

 ** [approvalState](#API_UpdatePullRequestApprovalState_RequestSyntax) **   <a name="CodeCommit-UpdatePullRequestApprovalState-request-approvalState"></a>
The approval state to associate with the user on the pull request.  
Type: String  
Valid Values: `APPROVE | REVOKE`   
Required: Yes

 ** [pullRequestId](#API_UpdatePullRequestApprovalState_RequestSyntax) **   <a name="CodeCommit-UpdatePullRequestApprovalState-request-pullRequestId"></a>
The system-generated ID of the pull request.  
Type: String  
Required: Yes

 ** [revisionId](#API_UpdatePullRequestApprovalState_RequestSyntax) **   <a name="CodeCommit-UpdatePullRequestApprovalState-request-revisionId"></a>
The system-generated ID of the revision.  
Type: String  
Required: Yes

## Response Elements
<a name="API_UpdatePullRequestApprovalState_ResponseElements"></a>

If the action is successful, the service sends back an HTTP 200 response with an empty HTTP body.

## Errors
<a name="API_UpdatePullRequestApprovalState_Errors"></a>

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

 ** ApprovalStateRequiredException **   
An approval state is required, but was not specified.    
 ** message **   
Any message associated with the exception.
HTTP Status Code: 400

 ** EncryptionIntegrityChecksFailedException **   
An encryption integrity check failed.    
 ** message **   
Any message associated with the exception.
HTTP Status Code: 500

 ** EncryptionKeyAccessDeniedException **   
An encryption key could not be accessed.    
 ** message **   
Any message associated with the exception.
HTTP Status Code: 400

 ** EncryptionKeyDisabledException **   
The encryption key is disabled.    
 ** message **   
Any message associated with the exception.
HTTP Status Code: 400

 ** EncryptionKeyNotFoundException **   
No encryption key was found.    
 ** message **   
Any message associated with the exception.
HTTP Status Code: 400

 ** EncryptionKeyUnavailableException **   
The encryption key is not available.    
 ** message **   
Any message associated with the exception.
HTTP Status Code: 400

 ** InvalidApprovalStateException **   
The state for the approval is not valid. Valid values include APPROVE and REVOKE.    
 ** message **   
Any message associated with the exception.
HTTP Status Code: 400

 ** InvalidPullRequestIdException **   
The pull request ID is not valid. Make sure that you have provided the full ID and that the pull request is in the specified repository, and then try again.    
 ** message **   
Any message associated with the exception.
HTTP Status Code: 400

 ** InvalidRevisionIdException **   
The revision ID is not valid. Use GetPullRequest to determine the value.    
 ** message **   
Any message associated with the exception.
HTTP Status Code: 400

 ** MaximumNumberOfApprovalsExceededException **   
The number of approvals required for the approval rule exceeds the maximum number allowed.    
 ** message **   
Any message associated with the exception.
HTTP Status Code: 400

 ** PullRequestAlreadyClosedException **   
The pull request status cannot be updated because it is already closed.    
 ** message **   
Any message associated with the exception.
HTTP Status Code: 400

 ** PullRequestCannotBeApprovedByAuthorException **   
The approval cannot be applied because the user approving the pull request matches the user who created the pull request. You cannot approve a pull request that you created.    
 ** message **   
Any message associated with the exception.
HTTP Status Code: 400

 ** PullRequestDoesNotExistException **   
The pull request ID could not be found. Make sure that you have specified the correct repository name and pull request ID, and then try again.    
 ** message **   
Any message associated with the exception.
HTTP Status Code: 400

 ** PullRequestIdRequiredException **   
A pull request ID is required, but none was provided.    
 ** message **   
Any message associated with the exception.
HTTP Status Code: 400

 ** RevisionIdRequiredException **   
A revision ID is required, but was not provided.    
 ** message **   
Any message associated with the exception.
HTTP Status Code: 400

 ** RevisionNotCurrentException **   
The revision ID provided in the request does not match the current revision ID. Use GetPullRequest to retrieve the current revision ID.    
 ** message **   
Any message associated with the exception.
HTTP Status Code: 400

## Examples
<a name="API_UpdatePullRequestApprovalState_Examples"></a>

### Example
<a name="API_UpdatePullRequestApprovalState_Example_1"></a>

This example illustrates one usage of UpdatePullRequestApprovalState.

#### Sample Request
<a name="API_UpdatePullRequestApprovalState_Example_1_Request"></a>

```
>POST / HTTP/1.1
Host: codecommit.us-east-1.amazonaws.com
Accept-Encoding: identity
Content-Length: 350
X-Amz-Target: CodeCommit_20150413.UpdatePullRequestApprovalRuleState
X-Amz-Date: 20191025T132023Z
User-Agent: aws-cli/1.11.187 Python/2.7.9 Windows/8
Content-Type: application/x-amz-json-1.1
Authorization: AWS4-HMAC-SHA256 Credential=AKIAI44QH8DHBEXAMPLE/20171025/us-east-1/codecommit/aws4_request, SignedHeaders=content-type;host;user-agent;x-amz-date;x-amz-target, Signature=8d9b5998EXAMPLE

{
   "pullRequestId": "27",
   "revisionId": "9f29d167EXAMPLE",
   "approvalState": "APPROVE"
}
```

#### Sample Response
<a name="API_UpdatePullRequestApprovalState_Example_1_Response"></a>

```
HTTP/1.1 200 OK
x-amzn-RequestId: 0728aaa8-EXAMPLE
Content-Type: application/x-amz-json-1.1
Content-Length: 847
Date: Fri, 25 Oct 2019 20:20:13 GMT
```

## See Also
<a name="API_UpdatePullRequestApprovalState_SeeAlso"></a>

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/codecommit-2015-04-13/UpdatePullRequestApprovalState) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/codecommit-2015-04-13/UpdatePullRequestApprovalState) 
+  [AWS SDK for C\+\+](https://docs.aws.amazon.com/goto/SdkForCpp/codecommit-2015-04-13/UpdatePullRequestApprovalState) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/codecommit-2015-04-13/UpdatePullRequestApprovalState) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/codecommit-2015-04-13/UpdatePullRequestApprovalState) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/codecommit-2015-04-13/UpdatePullRequestApprovalState) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/codecommit-2015-04-13/UpdatePullRequestApprovalState) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/codecommit-2015-04-13/UpdatePullRequestApprovalState) 
+  [AWS SDK for Python (Boto3)](https://docs.aws.amazon.com/goto/boto3/codecommit-2015-04-13/UpdatePullRequestApprovalState) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/codecommit-2015-04-13/UpdatePullRequestApprovalState)