There are more AWS SDK examples available in the [AWS Doc SDK Examples](https://github.com/awsdocs/aws-doc-sdk-examples) GitHub repo.
# Use `CreateCollection` with an AWS SDK or CLI
The following code examples show how to use `CreateCollection`.
For more information, see [Creating a collection](https://docs.aws.amazon.com/rekognition/latest/dg/create-collection-procedure.html).
------
#### [ .NET ]
**SDK for .NET**
There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv3/Rekognition/#code-examples).
```
using System;
using System.Threading.Tasks;
using Amazon.Rekognition;
using Amazon.Rekognition.Model;
///
/// Uses Amazon Rekognition to create a collection to which you can add
/// faces using the IndexFaces operation.
///
public class CreateCollection
{
public static async Task Main()
{
var rekognitionClient = new AmazonRekognitionClient();
string collectionId = "MyCollection";
Console.WriteLine("Creating collection: " + collectionId);
var createCollectionRequest = new CreateCollectionRequest
{
CollectionId = collectionId,
};
CreateCollectionResponse createCollectionResponse = await rekognitionClient.CreateCollectionAsync(createCollectionRequest);
Console.WriteLine($"CollectionArn : {createCollectionResponse.CollectionArn}");
Console.WriteLine($"Status code : {createCollectionResponse.StatusCode}");
}
}
```
+ For API details, see [CreateCollection](https://docs.aws.amazon.com/goto/DotNetSDKV3/rekognition-2016-06-27/CreateCollection) in *AWS SDK for .NET API Reference*.
------
#### [ CLI ]
**AWS CLI**
**To create a collection**
The following `create-collection` command creates a collection with the specified name.
```
aws rekognition create-collection \
--collection-id "MyCollection"
```
Output:
```
{
"CollectionArn": "aws:rekognition:us-west-2:123456789012:collection/MyCollection",
"FaceModelVersion": "4.0",
"StatusCode": 200
}
```
For more information, see [Creating a Collection](https://docs.aws.amazon.com/rekognition/latest/dg/create-collection-procedure.html) in the *Amazon Rekognition Developer Guide*.
+ For API details, see [CreateCollection](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/rekognition/create-collection.html) in *AWS CLI Command Reference*.
------
#### [ Java ]
**SDK for Java 2.x**
There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/rekognition/#code-examples).
```
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.rekognition.RekognitionClient;
import software.amazon.awssdk.services.rekognition.model.CreateCollectionResponse;
import software.amazon.awssdk.services.rekognition.model.CreateCollectionRequest;
import software.amazon.awssdk.services.rekognition.model.RekognitionException;
/**
* Before running this Java V2 code example, set up your development
* environment, including your credentials.
*
* For more information, see the following documentation topic:
*
* https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
*/
public class CreateCollection {
public static void main(String[] args) {
final String usage = """
Usage: \s
Where:
collectionName - The name of the collection.\s
""";
if (args.length != 1) {
System.out.println(usage);
System.exit(1);
}
String collectionId = args[0];
Region region = Region.US_WEST_2;
RekognitionClient rekClient = RekognitionClient.builder()
.region(region)
.build();
System.out.println("Creating collection: " + collectionId);
createMyCollection(rekClient, collectionId);
rekClient.close();
}
/**
* Creates a new Amazon Rekognition collection.
*
* @param rekClient the Amazon Rekognition client used to interact with the Rekognition service
* @param collectionId the unique identifier for the collection to be created
*/
public static void createMyCollection(RekognitionClient rekClient, String collectionId) {
try {
CreateCollectionRequest collectionRequest = CreateCollectionRequest.builder()
.collectionId(collectionId)
.build();
CreateCollectionResponse collectionResponse = rekClient.createCollection(collectionRequest);
System.out.println("CollectionArn: " + collectionResponse.collectionArn());
System.out.println("Status code: " + collectionResponse.statusCode().toString());
} catch (RekognitionException e) {
System.out.println(e.getMessage());
System.exit(1);
}
}
}
```
+ For API details, see [CreateCollection](https://docs.aws.amazon.com/goto/SdkForJavaV2/rekognition-2016-06-27/CreateCollection) in *AWS SDK for Java 2.x API Reference*.
------
#### [ Kotlin ]
**SDK for Kotlin**
There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/rekognition#code-examples).
```
suspend fun createMyCollection(collectionIdVal: String) {
val request =
CreateCollectionRequest {
collectionId = collectionIdVal
}
RekognitionClient.fromEnvironment { region = "us-east-1" }.use { rekClient ->
val response = rekClient.createCollection(request)
println("Collection ARN is ${response.collectionArn}")
println("Status code is ${response.statusCode}")
}
}
```
+ For API details, see [CreateCollection](https://sdk.amazonaws.com/kotlin/api/latest/index.html) in *AWS SDK for Kotlin API reference*.
------
#### [ Python ]
**SDK for Python (Boto3)**
There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/rekognition#code-examples).
```
class RekognitionCollectionManager:
"""
Encapsulates Amazon Rekognition collection management functions.
This class is a thin wrapper around parts of the Boto3 Amazon Rekognition API.
"""
def __init__(self, rekognition_client):
"""
Initializes the collection manager object.
:param rekognition_client: A Boto3 Rekognition client.
"""
self.rekognition_client = rekognition_client
def create_collection(self, collection_id):
"""
Creates an empty collection.
:param collection_id: Text that identifies the collection.
:return: The newly created collection.
"""
try:
response = self.rekognition_client.create_collection(
CollectionId=collection_id
)
response["CollectionId"] = collection_id
collection = RekognitionCollection(response, self.rekognition_client)
logger.info("Created collection %s.", collection_id)
except ClientError:
logger.exception("Couldn't create collection %s.", collection_id)
raise
else:
return collection
```
+ For API details, see [CreateCollection](https://docs.aws.amazon.com/goto/boto3/rekognition-2016-06-27/CreateCollection) in *AWS SDK for Python (Boto3) API Reference*.
------
#### [ SAP ABAP ]
**SDK for SAP ABAP**
There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/rek#code-examples).
```
TRY.
oo_result = lo_rek->createcollection(
iv_collectionid = iv_collection_id ).
MESSAGE 'Collection created successfully.' TYPE 'I'.
CATCH /aws1/cx_rekresrcalrdyexistsex.
MESSAGE 'Collection already exists.' TYPE 'E'.
CATCH /aws1/cx_rekinvalidparameterex.
MESSAGE 'Invalid parameter value.' TYPE 'E'.
ENDTRY.
```
+ For API details, see [CreateCollection](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html) in *AWS SDK for SAP ABAP API reference*.
------