AWS Cognito Java

Java Create Cognito Pool Example

Here’s an example of how to create a user pool in Java using the AWS SDK for Java:

import com.amazonaws.services.cognitoidp.AWSCognitoIdentityProvider;
import com.amazonaws.services.cognitoidp.AWSCognitoIdentityProviderClientBuilder;
import com.amazonaws.services.cognitoidp.model.CreateUserPoolRequest;
import com.amazonaws.services.cognitoidp.model.CreateUserPoolResult;
 
public class CreateCognitoPoolExample {
    public static void main(String[] args) {
        // Create a client
        AWSCognitoIdentityProvider cognitoClient = AWSCognitoIdentityProviderClientBuilder.defaultClient();
 
        // Create a request to create a user pool
        CreateUserPoolRequest createUserPoolRequest = new CreateUserPoolRequest()
                .withPoolName("MyCognitoPool");
 
        // Send the request to create the user pool
        CreateUserPoolResult createUserPoolResult = cognitoClient.createUserPool(createUserPoolRequest);
 
        // Print the user pool ID
        System.out.println("User Pool ID: " + createUserPoolResult.getUserPool().getId());
    }
}

This code creates a client for the AWS Cognito service using the AWSCognitoIdentityProviderClientBuilder class. It then creates a CreateUserPoolRequest object with the name “MyCognitoPool”, and sends it to the service using the createUserPool method. The resulting user pool ID is printed to the console.

Note that you will need to have your AWS credentials set up in order for this code to work. You can do this by providing the AWS access key and secret key in the AWSCredentials object or by using the default credentials provider chain.

Also, you may need to include the dependencies of the AWS SDK for Java in your project. This example uses version 2 of the SDK.

Java Create user in AWS Cognito

Here is an example of how to create a user in an Amazon Cognito user pool using the AWS SDK for Java:

import com.amazonaws.services.cognitoidp.AWSCognitoIdentityProvider;
import com.amazonaws.services.cognitoidp.model.AdminCreateUserRequest;
import com.amazonaws.services.cognitoidp.model.AdminCreateUserResult;
 
public class CognitoCreateUser {
 
    public static void main(String[] args) {
        AWSCognitoIdentityProvider cognitoClient = new AWSCognitoIdentityProviderClientBuilder()
                .withCredentials(new AWSStaticCredentialsProvider(new BasicAWSCredentials("ACCESS_KEY", "SECRET_KEY")))
                .withRegion(Regions.US_EAST_1)
                .build();
 
        AdminCreateUserRequest request = new AdminCreateUserRequest();
        request.setUserPoolId("your_user_pool_id");
        request.setUsername("your_username");
        request.setUserAttributes(Arrays.asList(
                new AttributeType().withName("email").withValue("[email protected]"),
                new AttributeType().withName("email_verified").withValue("true")));
        request.setTemporaryPassword("your_temporary_password");
        request.setForceAliasCreation(false);
 
        AdminCreateUserResult result = cognitoClient.adminCreateUser(request);
        System.out.println(result.getUser());
    }
}

You’ll need to replace “your_user_pool_id”, “your_username”, “[email protected]”, “your_temporary_password” and “ACCESS_KEY”, “SECRET_KEY” with the appropriate values for your user pool and AWS credentials.

Please also note that in this example the user is being created with an email address, email verification set to true, and a temporary password. However, you can include other attributes as well like name, phone number, etc.

Java Create user in AWS Cognito

To update a user in AWS Cognito using Java, you can use the AWS Cognito SDK for Java. The SDK provides a class called “AdminUpdateUserAttributesRequest” that you can use to update user attributes.

Here’s an example of how you can use the SDK to update a user’s email address:

// Import the necessary classes from the SDK
import com.amazonaws.services.cognitoidp.AWSCognitoIdentityProvider;
import com.amazonaws.services.cognitoidp.AWSCognitoIdentityProviderClientBuilder;
import com.amazonaws.services.cognitoidp.model.AdminUpdateUserAttributesRequest;
import com.amazonaws.services.cognitoidp.model.AttributeType;
 
// Replace with your user pool ID and user's email address
String userPoolId = "your-user-pool-id";
String email = "[email protected]";
 
// Build the client
AWSCognitoIdentityProvider cognitoClient = AWSCognitoIdentityProviderClientBuilder.standard()
                                                                                .build();
 
// Create a list of attribute types to update
List<attributeType> attributes = new ArrayList<>();
attributes.add(new attributeType().withName("email").withValue("[email protected]"));
 
// Create the request
AdminUpdateUserAttributesRequest request = new AdminUpdateUserAttributesRequest()
                                                .withUserPoolId(userPoolId)
                                                .withUsername(email)
                                                .withUserAttributes(attributes);
 
// Execute the request
cognitoClient.adminUpdateUserAttributes(request);

This is just a basic example, you can update any attributes by providing the attribute name and its value.

Java delete user in AWS Cognito

Here’s an example of Java code that demonstrates how to delete a user in Amazon Cognito using the AWS SDK for Java:

import com.amazonaws.services.cognitoidp.AWSCognitoIdentityProvider;
import com.amazonaws.services.cognitoidp.AWSCognitoIdentityProviderClientBuilder;
import com.amazonaws.services.cognitoidp.model.AdminDeleteUserRequest;
 
public class DeleteUserExample {
 
    public static void main(String[] args) {
        // Get the user pool id and the user name
        String userPoolId = "your_user_pool_id";
        String userName = "username_to_delete";
 
        // Create a new instance of the AWS Cognito client
        AWSCognitoIdentityProvider cognitoClient = AWSCognitoIdentityProviderClientBuilder.defaultClient();
 
        // Create the request object for deleting a user
        AdminDeleteUserRequest deleteRequest = new AdminDeleteUserRequest()
                .withUserPoolId(userPoolId)
                .withUsername(userName);
 
        // Send the request to delete the user
        cognitoClient.adminDeleteUser(deleteRequest);
    }
}

This code uses the AWS SDK for Java to create an instance of the Amazon Cognito client, and then it uses the adminDeleteUser() method to delete the specified user from the specified user pool.

Please note that you need to have the correct IAM permissions to perform these operations.

Java list users in AWS Cognito

To list users in an AWS Cognito user pool using Java, you can use the AWS SDK for Java and the listUsers method of the AmazonCognitoIdentityProviderClient class.

Here is an example of how to list users in a user pool:

AmazonCognitoIdentityProvider cognitoIdentityProvider = AmazonCognitoIdentityProviderClientBuilder.standard().withRegion(Regions.US_EAST_1).build();
ListUsersRequest listUsersRequest = new ListUsersRequest();
listUsersRequest.setUserPoolId("YOUR_USER_POOL_ID");
ListUsersResult listUsersResult = cognitoIdentityProvider.listUsers(listUsersRequest);
List<userType> users = listUsersResult.getUsers();

This example is using the AmazonCognitoIdentityProviderClientBuilder to create an instance of the AmazonCognitoIdentityProvider client, and specifying the region where the user pool is located. Then it creates a ListUsersRequest object and sets the user pool ID. Finally it calls the listUsers method passing the request and it returns a ListUsersResult object that contains a list of UserType which is a collection of user’s attributes.

You can also use the listUsers method to paginate through the list of users by passing a PaginationToken in the request and checking the getPaginationToken in the result to see if there are more users to retrieve.

Please follow and like us:
Content Protection by DMCA.com