Exemplos do Amazon Cognito Identity Provider usando SDK para Java 2.x

Os exemplos de código a seguir mostram como realizar ações e implementar cenários comuns usando o AWS SDK for Java 2.x Amazon Cognito Identity Provider.

Ações são trechos de código de programas maiores e devem ser executadas em contexto. Embora as ações mostrem como chamar funções de serviço específicas, é possível ver as ações contextualizadas em seus devidos cenários e exemplos entre serviços.

Cenários são exemplos de código que mostram como realizar uma tarefa específica chamando várias funções dentro do mesmo serviço.

Cada exemplo inclui um link para GitHub, onde você pode encontrar instruções sobre como configurar e executar o código no contexto.

Conceitos básicos

Olá, Amazon Cognito

Os exemplos de código a seguir mostram como começar a usar o Amazon Cognito.

SDKpara Java 2.x

nota

Tem mais sobre GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository.

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.cognitoidentityprovider.CognitoIdentityProviderClient;
import software.amazon.awssdk.services.cognitoidentityprovider.model.CognitoIdentityProviderException;
import software.amazon.awssdk.services.cognitoidentityprovider.model.ListUserPoolsResponse;
import software.amazon.awssdk.services.cognitoidentityprovider.model.ListUserPoolsRequest;

/**
 * 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 ListUserPools {
    public static void main(String[] args) {
        CognitoIdentityProviderClient cognitoClient = CognitoIdentityProviderClient.builder()
                .region(Region.US_EAST_1)
                .build();

        listAllUserPools(cognitoClient);
        cognitoClient.close();
    }

    public static void listAllUserPools(CognitoIdentityProviderClient cognitoClient) {
        try {
            ListUserPoolsRequest request = ListUserPoolsRequest.builder()
                    .maxResults(10)
                    .build();

            ListUserPoolsResponse response = cognitoClient.listUserPools(request);
            response.userPools().forEach(userpool -> {
                System.out.println("User pool " + userpool.name() + ", User ID " + userpool.id());
            });

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

• Para API obter detalhes, consulte ListUserPoolsem AWS SDK for Java 2.x APIReferência.

Ações

AdminGetUser

O código de exemplo a seguir mostra como usar AdminGetUser.

SDKpara Java 2.x

nota

Tem mais sobre GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository.

    public static void getAdminUser(CognitoIdentityProviderClient identityProviderClient, String userName,
            String poolId) {
        try {
            AdminGetUserRequest userRequest = AdminGetUserRequest.builder()
                    .username(userName)
                    .userPoolId(poolId)
                    .build();

            AdminGetUserResponse response = identityProviderClient.adminGetUser(userRequest);
            System.out.println("User status " + response.userStatusAsString());

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }

• Para API obter detalhes, consulte AdminGetUserem AWS SDK for Java 2.x APIReferência.

AdminInitiateAuth

O código de exemplo a seguir mostra como usar AdminInitiateAuth.

SDKpara Java 2.x

nota

Tem mais sobre GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository.

    public static AdminInitiateAuthResponse initiateAuth(CognitoIdentityProviderClient identityProviderClient,
            String clientId, String userName, String password, String userPoolId) {
        try {
            Map<String, String> authParameters = new HashMap<>();
            authParameters.put("USERNAME", userName);
            authParameters.put("PASSWORD", password);

            AdminInitiateAuthRequest authRequest = AdminInitiateAuthRequest.builder()
                    .clientId(clientId)
                    .userPoolId(userPoolId)
                    .authParameters(authParameters)
                    .authFlow(AuthFlowType.ADMIN_USER_PASSWORD_AUTH)
                    .build();

            AdminInitiateAuthResponse response = identityProviderClient.adminInitiateAuth(authRequest);
            System.out.println("Result Challenge is : " + response.challengeName());
            return response;

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }

        return null;
    }

• Para API obter detalhes, consulte AdminInitiateAuthem AWS SDK for Java 2.x APIReferência.

AdminRespondToAuthChallenge

O código de exemplo a seguir mostra como usar AdminRespondToAuthChallenge.

SDKpara Java 2.x

nota

Tem mais sobre GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository.

    // Respond to an authentication challenge.
    public static void adminRespondToAuthChallenge(CognitoIdentityProviderClient identityProviderClient,
            String userName, String clientId, String mfaCode, String session) {
        System.out.println("SOFTWARE_TOKEN_MFA challenge is generated");
        Map<String, String> challengeResponses = new HashMap<>();

        challengeResponses.put("USERNAME", userName);
        challengeResponses.put("SOFTWARE_TOKEN_MFA_CODE", mfaCode);

        AdminRespondToAuthChallengeRequest respondToAuthChallengeRequest = AdminRespondToAuthChallengeRequest.builder()
                .challengeName(ChallengeNameType.SOFTWARE_TOKEN_MFA)
                .clientId(clientId)
                .challengeResponses(challengeResponses)
                .session(session)
                .build();

        AdminRespondToAuthChallengeResponse respondToAuthChallengeResult = identityProviderClient
                .adminRespondToAuthChallenge(respondToAuthChallengeRequest);
        System.out.println("respondToAuthChallengeResult.getAuthenticationResult()"
                + respondToAuthChallengeResult.authenticationResult());
    }

• Para API obter detalhes, consulte AdminRespondToAuthChallengeem AWS SDK for Java 2.x APIReferência.

AssociateSoftwareToken

O código de exemplo a seguir mostra como usar AssociateSoftwareToken.

SDKpara Java 2.x

nota

Tem mais sobre GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository.

    public static String getSecretForAppMFA(CognitoIdentityProviderClient identityProviderClient, String session) {
        AssociateSoftwareTokenRequest softwareTokenRequest = AssociateSoftwareTokenRequest.builder()
                .session(session)
                .build();

        AssociateSoftwareTokenResponse tokenResponse = identityProviderClient
                .associateSoftwareToken(softwareTokenRequest);
        String secretCode = tokenResponse.secretCode();
        System.out.println("Enter this token into Google Authenticator");
        System.out.println(secretCode);
        return tokenResponse.session();
    }

• Para API obter detalhes, consulte AssociateSoftwareTokenem AWS SDK for Java 2.x APIReferência.

ConfirmSignUp

O código de exemplo a seguir mostra como usar ConfirmSignUp.

SDKpara Java 2.x

nota

Tem mais sobre GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository.

    public static void confirmSignUp(CognitoIdentityProviderClient identityProviderClient, String clientId, String code,
            String userName) {
        try {
            ConfirmSignUpRequest signUpRequest = ConfirmSignUpRequest.builder()
                    .clientId(clientId)
                    .confirmationCode(code)
                    .username(userName)
                    .build();

            identityProviderClient.confirmSignUp(signUpRequest);
            System.out.println(userName + " was confirmed");

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }

• Para API obter detalhes, consulte ConfirmSignUpem AWS SDK for Java 2.x APIReferência.

CreateUserPool

O código de exemplo a seguir mostra como usar CreateUserPool.

SDKpara Java 2.x

nota

Tem mais sobre GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository.

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.cognitoidentityprovider.CognitoIdentityProviderClient;
import software.amazon.awssdk.services.cognitoidentityprovider.model.CognitoIdentityProviderException;
import software.amazon.awssdk.services.cognitoidentityprovider.model.CreateUserPoolRequest;
import software.amazon.awssdk.services.cognitoidentityprovider.model.CreateUserPoolResponse;

/**
 * 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 CreateUserPool {
    public static void main(String[] args) {

        final String usage = """

                Usage:
                    <userPoolName>\s

                Where:
                    userPoolName - The name to give your user pool when it's created.
                """;

        if (args.length != 1) {
            System.out.println(usage);
            System.exit(1);
        }

        String userPoolName = args[0];
        CognitoIdentityProviderClient cognitoClient = CognitoIdentityProviderClient.builder()
                .region(Region.US_EAST_1)
                .build();

        String id = createPool(cognitoClient, userPoolName);
        System.out.println("User pool ID: " + id);
        cognitoClient.close();
    }

    public static String createPool(CognitoIdentityProviderClient cognitoClient, String userPoolName) {
        try {
            CreateUserPoolRequest request = CreateUserPoolRequest.builder()
                    .poolName(userPoolName)
                    .build();

            CreateUserPoolResponse response = cognitoClient.createUserPool(request);
            return response.userPool().id();

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
        return "";
    }
}

• Para API obter detalhes, consulte CreateUserPoolem AWS SDK for Java 2.x APIReferência.

CreateUserPoolClient

O código de exemplo a seguir mostra como usar CreateUserPoolClient.

SDKpara Java 2.x

nota

Tem mais sobre GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository.

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.cognitoidentityprovider.CognitoIdentityProviderClient;
import software.amazon.awssdk.services.cognitoidentityprovider.model.CognitoIdentityProviderException;
import software.amazon.awssdk.services.cognitoidentityprovider.model.CreateUserPoolClientRequest;
import software.amazon.awssdk.services.cognitoidentityprovider.model.CreateUserPoolClientResponse;

/**
 * A user pool client app is an application that authenticates with Amazon
 * Cognito user pools.
 * When you create a user pool, you can configure app clients that allow mobile
 * or web applications
 * to call API operations to authenticate users, manage user attributes and
 * profiles,
 * and implement sign-up and sign-in flows.
 *
 * 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 CreateUserPoolClient {
    public static void main(String[] args) {
        final String usage = """

                Usage:
                    <clientName> <userPoolId>\s

                Where:
                    clientName - The name for the user pool client to create.
                    userPoolId - The ID for the user pool.
                """;

        if (args.length != 2) {
            System.out.println(usage);
            System.exit(1);
        }

        String clientName = args[0];
        String userPoolId = args[1];
        CognitoIdentityProviderClient cognitoClient = CognitoIdentityProviderClient.builder()
                .region(Region.US_EAST_1)
                .build();

        createPoolClient(cognitoClient, clientName, userPoolId);
        cognitoClient.close();
    }

    public static void createPoolClient(CognitoIdentityProviderClient cognitoClient, String clientName,
            String userPoolId) {
        try {
            CreateUserPoolClientRequest request = CreateUserPoolClientRequest.builder()
                    .clientName(clientName)
                    .userPoolId(userPoolId)
                    .build();

            CreateUserPoolClientResponse response = cognitoClient.createUserPoolClient(request);
            System.out.println("User pool " + response.userPoolClient().clientName() + " created. ID: "
                    + response.userPoolClient().clientId());

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

• Para API obter detalhes, consulte CreateUserPoolClientem AWS SDK for Java 2.x APIReferência.

ListUserPools

O código de exemplo a seguir mostra como usar ListUserPools.

SDKpara Java 2.x

nota

Tem mais sobre GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository.

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.cognitoidentityprovider.CognitoIdentityProviderClient;
import software.amazon.awssdk.services.cognitoidentityprovider.model.CognitoIdentityProviderException;
import software.amazon.awssdk.services.cognitoidentityprovider.model.ListUserPoolsResponse;
import software.amazon.awssdk.services.cognitoidentityprovider.model.ListUserPoolsRequest;

/**
 * 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 ListUserPools {
    public static void main(String[] args) {
        CognitoIdentityProviderClient cognitoClient = CognitoIdentityProviderClient.builder()
                .region(Region.US_EAST_1)
                .build();

        listAllUserPools(cognitoClient);
        cognitoClient.close();
    }

    public static void listAllUserPools(CognitoIdentityProviderClient cognitoClient) {
        try {
            ListUserPoolsRequest request = ListUserPoolsRequest.builder()
                    .maxResults(10)
                    .build();

            ListUserPoolsResponse response = cognitoClient.listUserPools(request);
            response.userPools().forEach(userpool -> {
                System.out.println("User pool " + userpool.name() + ", User ID " + userpool.id());
            });

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

• Para API obter detalhes, consulte ListUserPoolsem AWS SDK for Java 2.x APIReferência.

ListUsers

O código de exemplo a seguir mostra como usar ListUsers.

SDKpara Java 2.x

nota

Tem mais sobre GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository.

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.cognitoidentityprovider.CognitoIdentityProviderClient;
import software.amazon.awssdk.services.cognitoidentityprovider.model.CognitoIdentityProviderException;
import software.amazon.awssdk.services.cognitoidentityprovider.model.ListUsersRequest;
import software.amazon.awssdk.services.cognitoidentityprovider.model.ListUsersResponse;

/**
 * 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 ListUsers {
    public static void main(String[] args) {

        final String usage = """

                Usage:
                    <userPoolId>\s

                Where:
                    userPoolId - The ID given to your user pool when it's created.
                """;

        if (args.length != 1) {
            System.out.println(usage);
            System.exit(1);
        }

        String userPoolId = args[0];
        CognitoIdentityProviderClient cognitoClient = CognitoIdentityProviderClient.builder()
                .region(Region.US_EAST_1)
                .build();

        listAllUsers(cognitoClient, userPoolId);
        listUsersFilter(cognitoClient, userPoolId);
        cognitoClient.close();
    }

    public static void listAllUsers(CognitoIdentityProviderClient cognitoClient, String userPoolId) {
        try {
            ListUsersRequest usersRequest = ListUsersRequest.builder()
                    .userPoolId(userPoolId)
                    .build();

            ListUsersResponse response = cognitoClient.listUsers(usersRequest);
            response.users().forEach(user -> {
                System.out.println("User " + user.username() + " Status " + user.userStatus() + " Created "
                        + user.userCreateDate());
            });

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }

    // Shows how to list users by using a filter.
    public static void listUsersFilter(CognitoIdentityProviderClient cognitoClient, String userPoolId) {

        try {
            String filter = "email = \"[e-mail]\"";
            ListUsersRequest usersRequest = ListUsersRequest.builder()
                    .userPoolId(userPoolId)
                    .filter(filter)
                    .build();

            ListUsersResponse response = cognitoClient.listUsers(usersRequest);
            response.users().forEach(user -> {
                System.out.println("User with filter applied " + user.username() + " Status " + user.userStatus()
                        + " Created " + user.userCreateDate());
            });

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

• Para API obter detalhes, consulte ListUsersem AWS SDK for Java 2.x APIReferência.

ResendConfirmationCode

O código de exemplo a seguir mostra como usar ResendConfirmationCode.

SDKpara Java 2.x

nota

Tem mais sobre GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository.

    public static void resendConfirmationCode(CognitoIdentityProviderClient identityProviderClient, String clientId,
            String userName) {
        try {
            ResendConfirmationCodeRequest codeRequest = ResendConfirmationCodeRequest.builder()
                    .clientId(clientId)
                    .username(userName)
                    .build();

            ResendConfirmationCodeResponse response = identityProviderClient.resendConfirmationCode(codeRequest);
            System.out.println("Method of delivery is " + response.codeDeliveryDetails().deliveryMediumAsString());

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }

• Para API obter detalhes, consulte ResendConfirmationCodeem AWS SDK for Java 2.x APIReferência.

SignUp

O código de exemplo a seguir mostra como usar SignUp.

SDKpara Java 2.x

nota

Tem mais sobre GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository.

    public static void signUp(CognitoIdentityProviderClient identityProviderClient, String clientId, String userName,
            String password, String email) {
        AttributeType userAttrs = AttributeType.builder()
                .name("email")
                .value(email)
                .build();

        List<AttributeType> userAttrsList = new ArrayList<>();
        userAttrsList.add(userAttrs);
        try {
            SignUpRequest signUpRequest = SignUpRequest.builder()
                    .userAttributes(userAttrsList)
                    .username(userName)
                    .clientId(clientId)
                    .password(password)
                    .build();

            identityProviderClient.signUp(signUpRequest);
            System.out.println("User has been signed up ");

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }

• Para API obter detalhes, consulte SignUpem AWS SDK for Java 2.x APIReferência.

VerifySoftwareToken

O código de exemplo a seguir mostra como usar VerifySoftwareToken.

SDKpara Java 2.x

nota

Tem mais sobre GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository.

    // Verify the TOTP and register for MFA.
    public static void verifyTOTP(CognitoIdentityProviderClient identityProviderClient, String session, String code) {
        try {
            VerifySoftwareTokenRequest tokenRequest = VerifySoftwareTokenRequest.builder()
                    .userCode(code)
                    .session(session)
                    .build();

            VerifySoftwareTokenResponse verifyResponse = identityProviderClient.verifySoftwareToken(tokenRequest);
            System.out.println("The status of the token is " + verifyResponse.statusAsString());

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }

• Para API obter detalhes, consulte VerifySoftwareTokenem AWS SDK for Java 2.x APIReferência.

Cenários

Inscrever um usuário com um grupo de usuários que exija MFA

O exemplo de código a seguir mostra como:

• Inscrever e confirmar um usuário com nome de usuário, senha e endereço de e-mail.

• Configure a autenticação multifatorial associando um MFA aplicativo ao usuário.

• Faça login usando uma senha e um MFA código.

SDKpara Java 2.x

nota

Tem mais sobre GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository.

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.cognitoidentityprovider.CognitoIdentityProviderClient;
import software.amazon.awssdk.services.cognitoidentityprovider.model.AdminGetUserRequest;
import software.amazon.awssdk.services.cognitoidentityprovider.model.AdminGetUserResponse;
import software.amazon.awssdk.services.cognitoidentityprovider.model.AdminInitiateAuthRequest;
import software.amazon.awssdk.services.cognitoidentityprovider.model.AdminInitiateAuthResponse;
import software.amazon.awssdk.services.cognitoidentityprovider.model.AdminRespondToAuthChallengeRequest;
import software.amazon.awssdk.services.cognitoidentityprovider.model.AdminRespondToAuthChallengeResponse;
import software.amazon.awssdk.services.cognitoidentityprovider.model.AssociateSoftwareTokenRequest;
import software.amazon.awssdk.services.cognitoidentityprovider.model.AssociateSoftwareTokenResponse;
import software.amazon.awssdk.services.cognitoidentityprovider.model.AttributeType;
import software.amazon.awssdk.services.cognitoidentityprovider.model.AuthFlowType;
import software.amazon.awssdk.services.cognitoidentityprovider.model.ChallengeNameType;
import software.amazon.awssdk.services.cognitoidentityprovider.model.CognitoIdentityProviderException;
import software.amazon.awssdk.services.cognitoidentityprovider.model.ConfirmSignUpRequest;
import software.amazon.awssdk.services.cognitoidentityprovider.model.ResendConfirmationCodeRequest;
import software.amazon.awssdk.services.cognitoidentityprovider.model.ResendConfirmationCodeResponse;
import software.amazon.awssdk.services.cognitoidentityprovider.model.SignUpRequest;
import software.amazon.awssdk.services.cognitoidentityprovider.model.VerifySoftwareTokenRequest;
import software.amazon.awssdk.services.cognitoidentityprovider.model.VerifySoftwareTokenResponse;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Scanner;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 *
 * TIP: To set up the required user pool, run the AWS Cloud Development Kit (AWS
 * CDK) script provided in this GitHub repo at
 * resources/cdk/cognito_scenario_user_pool_with_mfa.
 *
 * This code example performs the following operations:
 *
 * 1. Invokes the signUp method to sign up a user.
 * 2. Invokes the adminGetUser method to get the user's confirmation status.
 * 3. Invokes the ResendConfirmationCode method if the user requested another
 * code.
 * 4. Invokes the confirmSignUp method.
 * 5. Invokes the AdminInitiateAuth to sign in. This results in being prompted
 * to set up TOTP (time-based one-time password). (The response is
 * “ChallengeName”: “MFA_SETUP”).
 * 6. Invokes the AssociateSoftwareToken method to generate a TOTP MFA private
 * key. This can be used with Google Authenticator.
 * 7. Invokes the VerifySoftwareToken method to verify the TOTP and register for
 * MFA.
 * 8. Invokes the AdminInitiateAuth to sign in again. This results in being
 * prompted to submit a TOTP (Response: “ChallengeName”: “SOFTWARE_TOKEN_MFA”).
 * 9. Invokes the AdminRespondToAuthChallenge to get back a token.
 */

public class CognitoMVP {
    public static final String DASHES = new String(new char[80]).replace("\0", "-");

    public static void main(String[] args) throws NoSuchAlgorithmException, InvalidKeyException {
        final String usage = """

                Usage:
                    <clientId> <poolId>

                Where:
                    clientId - The app client Id value that you can get from the AWS CDK script.
                    poolId - The pool Id that you can get from the AWS CDK script.\s
                """;

        if (args.length != 2) {
            System.out.println(usage);
            System.exit(1);
        }

        String clientId = args[0];
        String poolId = args[1];
        CognitoIdentityProviderClient identityProviderClient = CognitoIdentityProviderClient.builder()
                .region(Region.US_EAST_1)
                .build();

        System.out.println(DASHES);
        System.out.println("Welcome to the Amazon Cognito example scenario.");
        System.out.println(DASHES);

        System.out.println(DASHES);
        System.out.println("*** Enter your user name");
        Scanner in = new Scanner(System.in);
        String userName = in.nextLine();

        System.out.println("*** Enter your password");
        String password = in.nextLine();

        System.out.println("*** Enter your email");
        String email = in.nextLine();

        System.out.println("1. Signing up " + userName);
        signUp(identityProviderClient, clientId, userName, password, email);
        System.out.println(DASHES);

        System.out.println(DASHES);
        System.out.println("2. Getting " + userName + " in the user pool");
        getAdminUser(identityProviderClient, userName, poolId);

        System.out
                .println("*** Conformation code sent to " + userName + ". Would you like to send a new code? (Yes/No)");
        System.out.println(DASHES);

        System.out.println(DASHES);
        String ans = in.nextLine();

        if (ans.compareTo("Yes") == 0) {
            resendConfirmationCode(identityProviderClient, clientId, userName);
            System.out.println("3. Sending a new confirmation code");
        }
        System.out.println(DASHES);

        System.out.println(DASHES);
        System.out.println("4. Enter confirmation code that was emailed");
        String code = in.nextLine();
        confirmSignUp(identityProviderClient, clientId, code, userName);
        System.out.println("Rechecking the status of " + userName + " in the user pool");
        getAdminUser(identityProviderClient, userName, poolId);
        System.out.println(DASHES);

        System.out.println(DASHES);
        System.out.println("5. Invokes the initiateAuth to sign in");
        AdminInitiateAuthResponse authResponse = initiateAuth(identityProviderClient, clientId, userName, password,
                poolId);
        String mySession = authResponse.session();
        System.out.println(DASHES);

        System.out.println(DASHES);
        System.out.println("6. Invokes the AssociateSoftwareToken method to generate a TOTP key");
        String newSession = getSecretForAppMFA(identityProviderClient, mySession);
        System.out.println(DASHES);

        System.out.println(DASHES);
        System.out.println("*** Enter the 6-digit code displayed in Google Authenticator");
        String myCode = in.nextLine();
        System.out.println(DASHES);

        System.out.println(DASHES);
        System.out.println("7. Verify the TOTP and register for MFA");
        verifyTOTP(identityProviderClient, newSession, myCode);
        System.out.println(DASHES);

        System.out.println(DASHES);
        System.out.println("8. Re-enter a 6-digit code displayed in Google Authenticator");
        String mfaCode = in.nextLine();
        AdminInitiateAuthResponse authResponse1 = initiateAuth(identityProviderClient, clientId, userName, password,
                poolId);
        System.out.println(DASHES);

        System.out.println(DASHES);
        System.out.println("9.  Invokes the AdminRespondToAuthChallenge");
        String session2 = authResponse1.session();
        adminRespondToAuthChallenge(identityProviderClient, userName, clientId, mfaCode, session2);
        System.out.println(DASHES);

        System.out.println(DASHES);
        System.out.println("All Amazon Cognito operations were successfully performed");
        System.out.println(DASHES);
    }

    // Respond to an authentication challenge.
    public static void adminRespondToAuthChallenge(CognitoIdentityProviderClient identityProviderClient,
            String userName, String clientId, String mfaCode, String session) {
        System.out.println("SOFTWARE_TOKEN_MFA challenge is generated");
        Map<String, String> challengeResponses = new HashMap<>();

        challengeResponses.put("USERNAME", userName);
        challengeResponses.put("SOFTWARE_TOKEN_MFA_CODE", mfaCode);

        AdminRespondToAuthChallengeRequest respondToAuthChallengeRequest = AdminRespondToAuthChallengeRequest.builder()
                .challengeName(ChallengeNameType.SOFTWARE_TOKEN_MFA)
                .clientId(clientId)
                .challengeResponses(challengeResponses)
                .session(session)
                .build();

        AdminRespondToAuthChallengeResponse respondToAuthChallengeResult = identityProviderClient
                .adminRespondToAuthChallenge(respondToAuthChallengeRequest);
        System.out.println("respondToAuthChallengeResult.getAuthenticationResult()"
                + respondToAuthChallengeResult.authenticationResult());
    }

    // Verify the TOTP and register for MFA.
    public static void verifyTOTP(CognitoIdentityProviderClient identityProviderClient, String session, String code) {
        try {
            VerifySoftwareTokenRequest tokenRequest = VerifySoftwareTokenRequest.builder()
                    .userCode(code)
                    .session(session)
                    .build();

            VerifySoftwareTokenResponse verifyResponse = identityProviderClient.verifySoftwareToken(tokenRequest);
            System.out.println("The status of the token is " + verifyResponse.statusAsString());

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }

    public static AdminInitiateAuthResponse initiateAuth(CognitoIdentityProviderClient identityProviderClient,
            String clientId, String userName, String password, String userPoolId) {
        try {
            Map<String, String> authParameters = new HashMap<>();
            authParameters.put("USERNAME", userName);
            authParameters.put("PASSWORD", password);

            AdminInitiateAuthRequest authRequest = AdminInitiateAuthRequest.builder()
                    .clientId(clientId)
                    .userPoolId(userPoolId)
                    .authParameters(authParameters)
                    .authFlow(AuthFlowType.ADMIN_USER_PASSWORD_AUTH)
                    .build();

            AdminInitiateAuthResponse response = identityProviderClient.adminInitiateAuth(authRequest);
            System.out.println("Result Challenge is : " + response.challengeName());
            return response;

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }

        return null;
    }

    public static String getSecretForAppMFA(CognitoIdentityProviderClient identityProviderClient, String session) {
        AssociateSoftwareTokenRequest softwareTokenRequest = AssociateSoftwareTokenRequest.builder()
                .session(session)
                .build();

        AssociateSoftwareTokenResponse tokenResponse = identityProviderClient
                .associateSoftwareToken(softwareTokenRequest);
        String secretCode = tokenResponse.secretCode();
        System.out.println("Enter this token into Google Authenticator");
        System.out.println(secretCode);
        return tokenResponse.session();
    }

    public static void confirmSignUp(CognitoIdentityProviderClient identityProviderClient, String clientId, String code,
            String userName) {
        try {
            ConfirmSignUpRequest signUpRequest = ConfirmSignUpRequest.builder()
                    .clientId(clientId)
                    .confirmationCode(code)
                    .username(userName)
                    .build();

            identityProviderClient.confirmSignUp(signUpRequest);
            System.out.println(userName + " was confirmed");

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }

    public static void resendConfirmationCode(CognitoIdentityProviderClient identityProviderClient, String clientId,
            String userName) {
        try {
            ResendConfirmationCodeRequest codeRequest = ResendConfirmationCodeRequest.builder()
                    .clientId(clientId)
                    .username(userName)
                    .build();

            ResendConfirmationCodeResponse response = identityProviderClient.resendConfirmationCode(codeRequest);
            System.out.println("Method of delivery is " + response.codeDeliveryDetails().deliveryMediumAsString());

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }

    public static void signUp(CognitoIdentityProviderClient identityProviderClient, String clientId, String userName,
            String password, String email) {
        AttributeType userAttrs = AttributeType.builder()
                .name("email")
                .value(email)
                .build();

        List<AttributeType> userAttrsList = new ArrayList<>();
        userAttrsList.add(userAttrs);
        try {
            SignUpRequest signUpRequest = SignUpRequest.builder()
                    .userAttributes(userAttrsList)
                    .username(userName)
                    .clientId(clientId)
                    .password(password)
                    .build();

            identityProviderClient.signUp(signUpRequest);
            System.out.println("User has been signed up ");

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }

    public static void getAdminUser(CognitoIdentityProviderClient identityProviderClient, String userName,
            String poolId) {
        try {
            AdminGetUserRequest userRequest = AdminGetUserRequest.builder()
                    .username(userName)
                    .userPoolId(poolId)
                    .build();

            AdminGetUserResponse response = identityProviderClient.adminGetUser(userRequest);
            System.out.println("User status " + response.userStatusAsString());

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

• Para API obter detalhes, consulte os tópicos a seguir em AWS SDK for Java 2.x APIReferência.

  • AdminGetUser

  • AdminInitiateAuth

  • AdminRespondToAuthChallenge

  • AssociateSoftwareToken

  • ConfirmDevice

  • ConfirmSignUp

  • InitiateAuth

  • ListUsers

  • ResendConfirmationCode

  • RespondToAuthChallenge

  • SignUp

  • VerifySoftwareToken