# Creating a user


You can use the [CreateUser](https://docs.aws.amazon.com/rekognition/latest/APIReference/API_CreateUser.html) operation to create a new user in a collection using a unique user ID you provide. You can then associate multiple faces with the newly created user.

**To create a user (SDK)**

1. If you haven't already:

   1. Create or update an IAM user account with `AmazonRekognitionFullAccess` permissions. For more information, see [Step 1: Set up an AWS account and create a User](setting-up.md#setting-up-iam).

   1. Install and configure the AWS CLI and the AWS SDKs. For more information, see [Step 2: Set up the AWS CLI and AWS SDKs](setup-awscli-sdk.md).

1. Use the following examples to call the `CreateUser` operation.

------
#### [ Java ]

   This Java code example creates a user. 

   ```
   import com.amazonaws.services.rekognition.AmazonRekognition;
   import com.amazonaws.services.rekognition.AmazonRekognitionClientBuilder;
   import com.amazonaws.services.rekognition.model.CreateUserRequest;
   import com.amazonaws.services.rekognition.model.CreateUserResult;
   
   
   public class CreateUser {
   
       public static void main(String[] args) throws Exception {
   
   
           AmazonRekognition rekognitionClient = AmazonRekognitionClientBuilder.defaultClient();
   
           //Replace collectionId and userId with the name of the user that you want to create in that target collection.
   
           String collectionId = "MyCollection";
           String userId = "demoUser";
           System.out.println("Creating new user: " +
                   userId);
   
           CreateUserRequest request = new CreateUserRequest()
                   .withCollectionId(collectionId)
                   .withUserId(userId);
   
           rekognitionClient.createUser(request);
       }
   
   }
   ```

------
#### [ AWS CLI ]

   This AWS CLI command creates a user, using the `create-user` CLI operation. 

   ```
   aws rekognition create-user --user-id user-id --collection-id collection-name --region region-name
   --client-request-token request-token
   ```

------
#### [ Python ]

   This Python code example creates a user. 

   ```
   # Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
   # PDX-License-Identifier: MIT-0 (For details, see https://github.com/awsdocs/amazon-rekognition-developer-guide/blob/master/LICENSE-SAMPLECODE.)
   
   import boto3
   from botocore.exceptions import ClientError
   import logging
   
   logger = logging.getLogger(__name__)
   session = boto3.Session(profile_name='profile-name')
   client = session.client('rekognition')
   
   def create_user(collection_id, user_id):
       """
       Creates a new User within a collection specified by CollectionId. 
       Takes UserId as a parameter, which is a user provided ID which 
       should be unique within the collection.
   
       :param collection_id: The ID of the collection where the indexed faces will be stored at.
       :param user_id: ID for the UserID to be created. This ID needs to be unique within the collection.
       
       :return: The indexFaces response
       """
       try:
           logger.info(f'Creating user: {collection_id}, {user_id}')
           client.create_user(
               CollectionId=collection_id,
               UserId=user_id
           )
       except ClientError:
           logger.exception(f'Failed to create user with given user id: {user_id}')
           raise
   
   def main():
       collection_id = "collection-id"
       user_id = "user-id"
       create_user(collection_id, user_id)
   
   if __name__ == "__main__":
       main()
   ```

------
#### [ Go ]

   This Go code example uses the AWS Go SDK V2 and it creates a user. 

   ```
   package main
   
   import (
   	"context"
   	"fmt"
   	"log"
   
   	"github.com/aws/aws-sdk-go-v2/aws"
   	"github.com/aws/aws-sdk-go-v2/config"
   	"github.com/aws/aws-sdk-go-v2/service/rekognition"
   )
   
   func main() {
   	// Load the AWS SDK configuration
   	cfg, err := config.LoadDefaultConfig(context.TODO(), config.WithRegion("us-west-2"))
   	if err != nil {
   		log.Fatalf("Failed to load configuration: %v", err)
   	}
   
   	// Create a Rekognition client
   	client := rekognition.NewFromConfig(cfg)
   
   	// Set up the input parameters
   	input := &rekognition.CreateUserInput{
   		CollectionId: aws.String("my-new-collection"), // Replace with your collection ID
   		UserId:       aws.String("user12345678910"),   // Replace with desired user ID
   	}
   
   	// Call the CreateUser operation
   	result, err := client.CreateUser(context.TODO(), input)
   	if err != nil {
   		log.Fatalf("Failed to create user: %v", err)
   	}
   
   	// Print out the results
   	fmt.Printf("User created successfully:\n")
   
   }
   ```

------