# CreateDataset
<a name="API_CreateDataset"></a>

Creates an empty dataset and adds it to the specified dataset group. Use [CreateDatasetImportJob](https://docs.aws.amazon.com/personalize/latest/dg/API_CreateDatasetImportJob.html) to import your training data to a dataset.

There are 5 types of datasets:
+ Item interactions
+ Items
+ Users
+ Action interactions
+ Actions

Each dataset type has an associated schema with required field types. Only the `Item interactions` dataset is required in order to train a model (also referred to as creating a solution).

A dataset can be in one of the following states:
+ CREATE PENDING > CREATE IN\$1PROGRESS > ACTIVE -or- CREATE FAILED
+ DELETE PENDING > DELETE IN\$1PROGRESS

To get the status of the dataset, call [DescribeDataset](https://docs.aws.amazon.com/personalize/latest/dg/API_DescribeDataset.html).

**Related APIs**
+  [CreateDatasetGroup](https://docs.aws.amazon.com/personalize/latest/dg/API_CreateDatasetGroup.html) 
+  [ListDatasets](https://docs.aws.amazon.com/personalize/latest/dg/API_ListDatasets.html) 
+  [DescribeDataset](https://docs.aws.amazon.com/personalize/latest/dg/API_DescribeDataset.html) 
+  [DeleteDataset](https://docs.aws.amazon.com/personalize/latest/dg/API_DeleteDataset.html) 

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

```
{
   "datasetGroupArn": "string",
   "datasetType": "string",
   "name": "string",
   "schemaArn": "string",
   "tags": [ 
      { 
         "tagKey": "string",
         "tagValue": "string"
      }
   ]
}
```

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

The request accepts the following data in JSON format.

 ** [datasetGroupArn](#API_CreateDataset_RequestSyntax) **   <a name="personalize-CreateDataset-request-datasetGroupArn"></a>
The Amazon Resource Name (ARN) of the dataset group to add the dataset to.  
Type: String  
Length Constraints: Maximum length of 256.  
Pattern: `arn:([a-z\d-]+):personalize:.*:.*:.+`   
Required: Yes

 ** [datasetType](#API_CreateDataset_RequestSyntax) **   <a name="personalize-CreateDataset-request-datasetType"></a>
The type of dataset.  
One of the following (case insensitive) values:  
+ Interactions
+ Items
+ Users
+ Actions
+ Action\$1Interactions
Type: String  
Length Constraints: Maximum length of 256.  
Pattern: `^[A-Za-z_]+$`   
Required: Yes

 ** [name](#API_CreateDataset_RequestSyntax) **   <a name="personalize-CreateDataset-request-name"></a>
The name for the dataset.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 63.  
Pattern: `^[a-zA-Z0-9][a-zA-Z0-9\-_]*`   
Required: Yes

 ** [schemaArn](#API_CreateDataset_RequestSyntax) **   <a name="personalize-CreateDataset-request-schemaArn"></a>
The ARN of the schema to associate with the dataset. The schema defines the dataset fields.  
Type: String  
Length Constraints: Maximum length of 256.  
Pattern: `arn:([a-z\d-]+):personalize:.*:.*:.+`   
Required: Yes

 ** [tags](#API_CreateDataset_RequestSyntax) **   <a name="personalize-CreateDataset-request-tags"></a>
A list of [tags](https://docs.aws.amazon.com/personalize/latest/dg/tagging-resources.html) to apply to the dataset.  
Type: Array of [Tag](API_Tag.md) objects  
Array Members: Minimum number of 0 items. Maximum number of 200 items.  
Required: No

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

```
{
   "datasetArn": "string"
}
```

## Response Elements
<a name="API_CreateDataset_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.

 ** [datasetArn](#API_CreateDataset_ResponseSyntax) **   <a name="personalize-CreateDataset-response-datasetArn"></a>
The ARN of the dataset.  
Type: String  
Length Constraints: Maximum length of 256.  
Pattern: `arn:([a-z\d-]+):personalize:.*:.*:.+` 

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

 ** InvalidInputException **   
Provide a valid value for the field or parameter.  
HTTP Status Code: 400

 ** LimitExceededException **   
The limit on the number of requests per second has been exceeded.  
HTTP Status Code: 400

 ** ResourceAlreadyExistsException **   
The specified resource already exists.  
HTTP Status Code: 400

 ** ResourceInUseException **   
The specified resource is in use.  
HTTP Status Code: 400

 ** ResourceNotFoundException **   
Could not find the specified resource.  
HTTP Status Code: 400

 ** TooManyTagsException **   
You have exceeded the maximum number of tags you can apply to this resource.   
HTTP Status Code: 400

## See Also
<a name="API_CreateDataset_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/personalize-2018-05-22/CreateDataset) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/personalize-2018-05-22/CreateDataset) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/personalize-2018-05-22/CreateDataset) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/personalize-2018-05-22/CreateDataset) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/personalize-2018-05-22/CreateDataset) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/personalize-2018-05-22/CreateDataset) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/personalize-2018-05-22/CreateDataset) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/personalize-2018-05-22/CreateDataset) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/personalize-2018-05-22/CreateDataset) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/personalize-2018-05-22/CreateDataset)