# ListApprovalRuleTemplates
<a name="API_ListApprovalRuleTemplates"></a>

Lists all approval rule templates in the specified Amazon Web Services Region in your Amazon Web Services account. If an Amazon Web Services Region is not specified, the Amazon Web Services Region where you are signed in is used.

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

```
{
   "maxResults": {{number}},
   "nextToken": "{{string}}"
}
```

## Request Parameters
<a name="API_ListApprovalRuleTemplates_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.

 ** [maxResults](#API_ListApprovalRuleTemplates_RequestSyntax) **   <a name="CodeCommit-ListApprovalRuleTemplates-request-maxResults"></a>
A non-zero, non-negative integer used to limit the number of returned results.  
Type: Integer  
Required: No

 ** [nextToken](#API_ListApprovalRuleTemplates_RequestSyntax) **   <a name="CodeCommit-ListApprovalRuleTemplates-request-nextToken"></a>
An enumeration token that, when provided in a request, returns the next batch of the results.  
Type: String  
Required: No

## Response Syntax
<a name="API_ListApprovalRuleTemplates_ResponseSyntax"></a>

```
{
   "approvalRuleTemplateNames": [ "string" ],
   "nextToken": "string"
}
```

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

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

The following data is returned in JSON format by the service.

 ** [approvalRuleTemplateNames](#API_ListApprovalRuleTemplates_ResponseSyntax) **   <a name="CodeCommit-ListApprovalRuleTemplates-response-approvalRuleTemplateNames"></a>
The names of all the approval rule templates found in the Amazon Web Services Region for your Amazon Web Services account.  
Type: Array of strings  
Length Constraints: Minimum length of 1. Maximum length of 100.

 ** [nextToken](#API_ListApprovalRuleTemplates_ResponseSyntax) **   <a name="CodeCommit-ListApprovalRuleTemplates-response-nextToken"></a>
An enumeration token that allows the operation to batch the next results of the operation.  
Type: String

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

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

 ** InvalidContinuationTokenException **   
The specified continuation token is not valid.  
HTTP Status Code: 400

 ** InvalidMaxResultsException **   
The specified number of maximum results is not valid.  
HTTP Status Code: 400

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

### Example
<a name="API_ListApprovalRuleTemplates_Example_1"></a>

This example illustrates one usage of ListApprovalRuleTemplates.

#### Sample Request
<a name="API_ListApprovalRuleTemplates_Example_1_Request"></a>

```
POST / HTTP/1.1
Host: codecommit.us-east-1.amazonaws.com
Accept-Encoding: identity
Content-Length: 33
X-Amz-Target: CodeCommit_20150413.ListApprovalRuleTemplates
X-Amz-Date: 20191021T230050Z
User-Agent: aws-cli/1.7.38 Python/2.7.9 Windows/10
Content-Type: application/x-amz-json-1.1
Authorization: AWS4-HMAC-SHA256 Credential=AKIAI44QH8DHBEXAMPLE/20151028/us-east-1/codecommit/aws4_request, SignedHeaders=content-type;host;user-agent;x-amz-date;x-amz-target, Signature=8d9b5998EXAMPLE

{}
```

#### Sample Response
<a name="API_ListApprovalRuleTemplates_Example_1_Response"></a>

```
HTTP/1.1 200 OK
x-amzn-RequestId: 0728aaa8-EXAMPLE
Content-Type: application/x-amz-json-1.1
Content-Length: 248
Date: Mon, 21 Oct 2019 23:00:52 GMT

{
    "approvalRuleTemplateNames": [
        "2-approver-rule-for-main",
        "1-approver-rule-for-all-pull-requests"
    ]
}
```

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

For more information about using this API in one of the language-specific Amazon SDKs, see the following:
+  [Amazon Command Line Interface V2](https://docs.amazonaws.cn/goto/cli2/codecommit-2015-04-13/ListApprovalRuleTemplates) 
+  [Amazon SDK for .NET V4](https://docs.amazonaws.cn/goto/DotNetSDKV4/codecommit-2015-04-13/ListApprovalRuleTemplates) 
+  [Amazon SDK for C\+\+](https://docs.amazonaws.cn/goto/SdkForCpp/codecommit-2015-04-13/ListApprovalRuleTemplates) 
+  [Amazon SDK for Go v2](https://docs.amazonaws.cn/goto/SdkForGoV2/codecommit-2015-04-13/ListApprovalRuleTemplates) 
+  [Amazon SDK for Java V2](https://docs.amazonaws.cn/goto/SdkForJavaV2/codecommit-2015-04-13/ListApprovalRuleTemplates) 
+  [Amazon SDK for JavaScript V3](https://docs.amazonaws.cn/goto/SdkForJavaScriptV3/codecommit-2015-04-13/ListApprovalRuleTemplates) 
+  [Amazon SDK for Kotlin](https://docs.amazonaws.cn/goto/SdkForKotlin/codecommit-2015-04-13/ListApprovalRuleTemplates) 
+  [Amazon SDK for PHP V3](https://docs.amazonaws.cn/goto/SdkForPHPV3/codecommit-2015-04-13/ListApprovalRuleTemplates) 
+  [Amazon SDK for Python](https://docs.amazonaws.cn/goto/boto3/codecommit-2015-04-13/ListApprovalRuleTemplates) 
+  [Amazon SDK for Ruby V3](https://docs.amazonaws.cn/goto/SdkForRubyV3/codecommit-2015-04-13/ListApprovalRuleTemplates)