# ListCustomEntityTypes


Lists all the custom patterns that have been created.

## Request Syntax


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

## Request Parameters


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_ListCustomEntityTypes_RequestSyntax) **   <a name="Glue-ListCustomEntityTypes-request-MaxResults"></a>
The maximum number of results to return.  
Type: Integer  
Valid Range: Minimum value of 1. Maximum value of 1000.  
Required: No

 ** [NextToken](#API_ListCustomEntityTypes_RequestSyntax) **   <a name="Glue-ListCustomEntityTypes-request-NextToken"></a>
A paginated token to offset the results.  
Type: String  
Required: No

 ** [Tags](#API_ListCustomEntityTypes_RequestSyntax) **   <a name="Glue-ListCustomEntityTypes-request-Tags"></a>
A list of key-value pair tags.  
Type: String to string map  
Map Entries: Minimum number of 0 items. Maximum number of 50 items.  
Key Length Constraints: Minimum length of 1. Maximum length of 128.  
Value Length Constraints: Minimum length of 0. Maximum length of 256.  
Required: No

## Response Syntax


```
{
   "CustomEntityTypes": [ 
      { 
         "ContextWords": [ "string" ],
         "Name": "string",
         "RegexString": "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.

 ** [CustomEntityTypes](#API_ListCustomEntityTypes_ResponseSyntax) **   <a name="Glue-ListCustomEntityTypes-response-CustomEntityTypes"></a>
A list of `CustomEntityType` objects representing custom patterns.  
Type: Array of [CustomEntityType](API_CustomEntityType.md) objects

 ** [NextToken](#API_ListCustomEntityTypes_ResponseSyntax) **   <a name="Glue-ListCustomEntityTypes-response-NextToken"></a>
A pagination token, if more results are available.  
Type: String

## Errors


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

 ** InternalServiceException **   
An internal service error occurred.    
 ** Message **   
A message describing the problem.
HTTP Status Code: 500

 ** InvalidInputException **   
The input provided was not valid.    
 ** FromFederationSource **   
Indicates whether or not the exception relates to a federated source.  
 ** Message **   
A message describing the problem.
HTTP Status Code: 400

 ** OperationTimeoutException **   
The operation timed out.    
 ** Message **   
A message describing the problem.
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/glue-2017-03-31/ListCustomEntityTypes) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/glue-2017-03-31/ListCustomEntityTypes) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/glue-2017-03-31/ListCustomEntityTypes) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/glue-2017-03-31/ListCustomEntityTypes) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/glue-2017-03-31/ListCustomEntityTypes) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/glue-2017-03-31/ListCustomEntityTypes) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/glue-2017-03-31/ListCustomEntityTypes) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/glue-2017-03-31/ListCustomEntityTypes) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/glue-2017-03-31/ListCustomEntityTypes) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/ListCustomEntityTypes)